Controls Solid-State Switching Devices

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1 Controls Solid-State Switching Devices /2 Introduction Solid-State Switching Devices /3 General data Solid-State Relays /5 General data /6 3RF21 solid-state relays, 22.5 mm /12 3RF20 solid-state relays, 5 mm Solid-State Contactors /16 General data /17 3RF23 solid-state contactors 3RF29 Function Modules /25 General data /27 Converters /28 Load monitoring and heating current monitoring /29 Power controllers /30 Project planning aids Siemens LV 1 T 2006

2 Controls Solid-State Switching Devices Introduction Overview 3RF21 3RF20 3RF23 3RF29 SIRIUS SC solid-state switching devices Solid-state relays 22.5 mm solid-state relays 5 mm solid-state relays Solid-state contactors Solid-state contactors Function modules Widths of 22.5 mm and 5 mm Compact and space-saving design Zero-point switching version Mounting onto existing heat sinks Complete units comprising a solid-state relay and an optimized heat sink, ready to use Compact and space-saving design Versions for resistive loads zero-point switching and inductive loads instantaneous switching Special designs Low Noise and Short-Circuit Resistant For extending the functionality of the 3RF21 solid-state relays and the 3RF23 solid-state contactors for many different applications: Order No. 3RF21, 3RF20 Page /6 /12 3RF23 /16 Converters For converting an analog input signal into an on/off ratio 3RF EA18 /27 Load monitoring For load monitoring of one or more loads (partial loads) 3RF FA08, /28 3RF29.0-0GA.. Heating current monitoring For load monitoring of one or more loads (partial loads) 3RF29..-0JA.. /28 Power controllers For supplying the current by means of a solid-state switching device depending on a setpoint value Closed-loop control: Full wave control or generalized phase control 3RF29.0-0HA.. /29 /2 Siemens LV 1 T 2006

3 Solid-State Switching Devices General data Overview SIRIUS SC solid-state switching devices Solid-state relays Solid-state contactors Function modules SIRIUS SC for almost unending activity Conventional electromechanical switching devices are often overtaxed by the rise in the number of switching operations. A high switching frequency results in frequent failure and short replacement cycles. However, this does not have to be the case, because with the latest generation of our SIRIUS SC solid-state switching devices we provide you with solid-state relays and contactors with a particularly long service life for almost unending activity even under the toughest conditions and under high mechanical load, but also in noise-sensitive areas. Proved time and again in service SIRIUS SC solid-state switching devices have become firmly established in industrial use. They are used above all in applications where loads are switched frequently mainly with resistive load controllers, with the control of electrical heat or the control of valves and motors in conveyor systems. In addition to its use in areas with high switching frequencies, thanks to its silent switching SIRIUS SC is also ideally suited to noise-sensitive areas such as offices or hospitals. The most reliable solution for any application Compared with mechanical switching devices, our SIRIUS SC solid-state switching devices stand out because of their considerably longer service life. Thanks to the high product quality, their switching is extremely precise, reliable and above all insusceptible to faults. With its variable connection methods and a wide spread of control voltages, the SIRIUS SC family is universally applicable. Depending on the individual requirements of the application, our modular switching devices can also be quite easily expanded by the addition of standardized function modules. Always on the sunny side with SIRIUS SC Because SIRIUS SC offers even more: The space-saving and compact side-by-side mounting ensures reliable operation up to an ambient temperature of +60 C. Thanks to fast configuration and the ease of installation and start-up, you save not only time but also expenses. Type Solid-state relays Solid-state contactor Function module 22.5 mm 5 mm Converters Load monitoring Heating Basic Extended current monitoring Usage Simple use of existing solid-state relays Complete Ready to use Space-saving Can be extended with modular function modules Frequent switching and monitoring of loads and solid-state relays/solid-state contactors Monitoring of up to 6 partial loads Monitoring of more than 6 partial loads Control of the heating power through an analog input Power control Startup Easy setting of setpoints with Teach button Remote Teach input for setting setpoints Installation Mounting onto mounting rails or mounting plates Can be snapped directly onto a solid-state relay or contactor For use with Coolplate heat sink Cable routing Connection of load circuit as for controls Connection of load circuit from above Power controllers Function is available Function is possible Siemens LV 1 T 2006 /3

4 Solid-State Switching Devices General data Design There is no typical design of a load feeder with solid-state relays or solid-state contactors; instead, the great variety of connection systems and control voltages offers universal application opportunities. SIRIUS SC solid-state relays and solid-state contactors can be installed in fuseless or fused feeders, as required. There are special versions with which it is even possible to achieve short-circuit strength in a fuseless design. Maximum load integral One of the purposes of specifying the maximum load integral (I²t) is to determine the rating of the short-circuit protection. Only a large power semiconductor with a correspondingly high I²t value can be given appropriate protection against destruction from a short-circuit by means of a protective device matched to the application. However, SIRIUS SC is also characterized by the optimum matching of the thyristors (I²t value) with the rated currents. The rated currents specified on the devices according to EN were confirmed by extensive testing. Function You can find more information on the Internet at: Connection technique All SIRIUS SC solid-state switching devices are characterized by the great variety of connection methods. You can choose More information between the following connection techniques: Notes on integration in the load feeders Screw connection system The screw connection system is the standard among industrial controls. Open terminals and a plus-minus screw are just two features of this technology. Two conductors of up to 6 mm² can be connected in just one terminal. As a result, loads of up to 50 A can be connected. Spring-loaded connection system This innovative technology manages without any screw connection. This means that very high vibration resistance is achieved. Two conductors of up to 2.5 mm² can be connected to each terminal. As a result, loads of up to 20 A can be dealt with. Ring terminal end connection The ring terminal end connection is equipped with an M5 screw. Ring terminal ends of up to 25 mm² can be connected. In this way it is possible to connect even high powers with current intensities of up to 90 A safely. Finger-safety is provided in this case too with a special cover. Switching functions In order to guarantee an optimized control method for different loads, the functionality of our solid-state switching devices can be adapted accordingly. The Zero-point switching method has proved to be ideal for resistive loads, i.e. where the power semiconductor is activated at zero voltage. For inductive loads, on the other hand, for example in the case of valves, it is better to go with Instantaneous switching. By distributing the ON point over the entire sine curve of the mains voltage, disturbances are reduced to a minimum. Performance characteristics The performance of the solid-state switching devices is substantially determined by the type of power semiconductors used and the internal design. In the case of the SIRIUS SC solid-state contactors and solid-state relays, only thyristors are used in place of less powerful Triacs. Two of the most important features of thyristors are the blocking voltage and the maximum load integral: Blocking voltage Suitable filters can be ordered from EPCOS AG. Thyristors with a high blocking voltage can also be operated You can find more information on the Internet at: without difficulty in power systems with high interference voltages. Separate protective measures, such as a protective circuit with a varistor, are not necessary in most cases. With SIRIUS SC, for example, thyristors with 800 V blocking voltage are fitted for operation in power systems up to 230 V. Thyristors with up to 1600 V are used for power systems with higher voltages. The SIRIUS SC solid-state switching devices are very easy to integrate into the load feeders thanks to their industrial connection technology and design. Particular attention must however be paid to the circumstances of the installation and ambient conditions, as the performance of the solid-state switching devices is largely dependent on these. Depending on the version, certain restrictions must be observed. Detailed information, for example in relation to solidstate contactors about the minimum spacing and to solid-state relays about the choice of heat sink, is given in the product data sheets and the technical specifications in the AD Mall. Despite the rugged power semiconductors that are used, solidstate switching devices respond more sensitively to shortcircuits in the load feeder. Consequently, special precautions have to be taken against destruction, depending on the type of design. Siemens generally recommends using SITOR solid-state protection fuses. These fuses also provide protection against destruction in the event of a short-circuit even when the solid-state contactors and solid-state relays are fully utilized. Alternatively, if there is lower loading, protection can also be provided by standard fuses or miniature circuit-breakers. This protection is achieved by overdimensioning the solid-state switching devices accordingly. The technical specifications in the AD Mall and the product data sheets contain details both about the solid-state fuse protection itself and about use of the SIRIUS SC devices with conventional protection equipment. The SIRIUS SC solid-state switching devices are suitable for interference-free operation in industrial power systems without further measures. If they are used in public power systems, it may be necessary for conducted interference to be reduced by means of filters. This does not include the special solid-state contactors of type 3RF23..-.CA.. Low Noise. These comply with the class B limit values up to a rated current of 16 A. If other versions are used, and at currents of over 16 A, standard filters can be used in order to comply with the limit values. The decisive factors when it comes to selecting the filters are essentially the current loading and the other parameters (operational voltage, design type, etc.) in the load feeder. / Siemens LV 1 T 2006

5 Solid-State Relays General data Overview More information Solid-state relays Selecting solid-state relays SIRIUS SC solid-state relays are suitable for surface mounting When selecting solid-state relays, in addition to information on existing cooling surfaces. Installation is quick and easy, about the power system, the load and the ambient conditions it involving just two screws. The special technology of the power is also necessary to know details of the planned design. The semiconductor ensures there is excellent thermal contact with solid-state relays can only conform to their specific technical the heat sink. Depending on the nature of the heat sink, the specifications if they are mounted with appropriate care on an capacity reaches up to 88 A on resistive loads. The 3RF21 solidstate relays can be expanded with various function modules to recommended: adequately dimensioned heat sink. The following procedure is adapt them to individual applications. Determine the rated current of the load and the mains voltage The solid-state relays are available in 2 different widths: Select the relay design and choose a solid-state relay with 3RF21 solid-state relay with a width of 22.5 mm higher rated current than the load 3RF20 solid-state relay with a width of 5 mm Determine the thermal resistance of the proposed heat sink Check the correct relay size with the aid of the diagrams Version for resistive loads, Zero-point switching You can find more information on the Internet at: This standard version is often used for switching space heaters on and off. Version for inductive loads, Instantaneous switching In this version the solid-state contactor is specifically matched to inductive loads. Whether it is a matter of frequent actuation of the valves in a filling plant or starting and stopping small drives in packet distribution systems, operation is carried out safely and noiselessly. Siemens LV 1 T 2006 /5

6 Solid-State Relays 3RF21 solid-state relays, 22.5 mm Overview 22.5 mm solid-state relays With its compact design, which stays the same even at currents of up to 88 A, the 3RF21 solid-state relay is the ultimate in spacesaving construction, at a width of 22.5 mm. The logical connection arrangement, with the power infeed from above and connection of the load from below, ensures tidy installation in the control cabinet. Technical specifications Type 3RF RF RF General data Ambient temperature During operation, derating from 0 C C During storage C Site altitude m ; derating from 1000 Shock resistance g/ms 15/11 According to IEC Vibration resistance g 2 According to IEC Degree of protection IP20 Electromagnetic compatibility (EMC) Emitted interference - Conducted interference voltage Class A for industrial applications according to IEC Emitted, high-frequency interference Class A for industrial applications voltage according to IEC Interference immunity - Electrostatic discharge kv Contact discharge ; air discharge 8; behavior criterion 2 according to IEC (corresponds to degree of severity 3) - Induced RF fields MHz ; 10 dbµv; behavior criterion 1 according to IEC Burst according to IEC kv 2/5.0 khz; behavior criterion 1 - Surge according to IEC kv Conductor ground 2; conductor conductor 1; behavior criterion 2 Connection technique Screw terminal Spring-loaded connection Ring cable connection Main contact connection Conductor cross-section - Solid mm 2 2 x ( ), 2 x ( ) 2 x ( ) -- - Finely stranded with end sleeve mm 2 2 x ( ), 2 x ( ), 2 x ( ) -- 1 x 10 - Finely stranded without end sleeve mm 2-2 x ( ) -- - Solid or stranded, AWG conductors 2 x (AWG ) 2 x (AWG ) -- Terminal screw M -- M5 Tightening torque Nm lb. in Cable lug -DIN DIN , -5-6, -5-10, -5-16, JIS JIS C 2805 R 2-5, 5.5-5, 8-5, 1-5 Connection, auxiliary/control contacts Conductor cross-section mm AWG 1 x ( ), 2 x ( ) Stripped length mm Terminal screw M3 -- M3 Tightening torque Nm lb. in x ( ), 2 x ( ) Type 3RF RF RF RF Main circuit Rated operational voltage U e V Tolerance % -15/+10 Rated frequency Hz 50/60 10 % Rated insulation voltage U i V 600 Blocking voltage V Rage of voltage rise V/µs /6 Siemens LV 1 T 2006

7 Solid-State Relays 3RF21 solid-state relays, 22.5 mm Order No. 1) I max I e according to I e according to UL/CSA IEC at R thha /T u = 0 C at R thha /T u = 0 C at R thha /T u = 50 C Main circuit 1) I max provides information about the performance of the solid-state relay. The actual permitted rated operational current I e can be smaller depending on the connection method and cooling conditions. Power loss at I max Minimum load current A K/W A K/W A K/W W A ma 3RF RF RF RF RF RF RF RF RF Leakage current Order No. Rated impulse withstand capacity I tsm I 2 t value Main circuit A 3RF RF A RF A RF A RF RF A RF A RF A RF A RF A 2 s Type 3RF RF RF Control circuit Method of operation DC operation AC operation DC operation Rated control supply voltage U s V 2 according to EN Rated frequency Hz -- 50/60 -- of the control supply voltage Rated control voltage U c V Rated control current at U s ma Response voltage V For tripping current ma Drop-out voltage V Operating times ON-delay ms 1 + additional max. one half-wave 1) 0 + additional max. one half-wave 1) 1 + additional max. one half-wave 1) OFF delay ms 1+ additional max. one half-wave 0 + additional max. one half-wave 1 + additional max. one half-wave 1) Only for zero-point-switching devices. Siemens LV 1 T 2006 /7

8 Solid-State Relays 3RF21 solid-state relays, 22.5 mm Fused version with solid-state protection (similar to type of coordination 2) 1) The solid-state protection for the SIRIUS SC controlgear can be used with different protective devices. This allows protection by means of, for example, LV HRC fuse links of gl/gg operational class or miniature circuit-breakers. Siemens recommends the use of special SITOR semiconductor fuses. The table below lists the maximum permissible fuses for each SIRIUS SC control gear. If a fuse is used with a higher rated current than specified, solidstate protection is no longer guaranteed. However, smaller fuses with a lower rated current for the load can be used without problems. For protective devices with gl/gg operational class and for SITOR full range fuses 3NE1, the minimum cross-sections for the conductor to be connected must be taken into account. Order No. All-range fuse Solid-state protection fuse LV design LV design Cylindrical design gr/sitor ar/sitor 10 x 38 mm 1 x 51 mm 3NE1 3NE8 ar/sitor ar/sitor 3NC1 0 3NC1 Suitable fuse holders, fuse bases and controlgear can be found in Catalog LV 1, Chapter 19. 1) Type of coordination 2 according to EN : In the event of a short-circuit, the controlgear in the load feeder must not endanger persons or the installation. They must be suitable for further operation. For fused configurations, the protective device must be replaced. 2) These fuses have a smaller rated current than the solid-state relays. 3) These versions can also be protected against short-circuits with miniature circuit-breakers as described in the notes on SIRIUS SC Solid-State Contactors Special Version Short-Circuit Resistant. 22 x 58 mm ar/sitor 3NC2 2 Cable and line protection fuse LV design Cylindrical design gl/gg 3NA mm gl/gg 3NW 1 51 mm gl/gg 3NW mm gl/gg 3NW DIAZED quick 5SB 3RF NE NE NC1020 3NC120 3NC2220 3NA2803 3NW NW SB171 3RF NE NE NC1016 3NC120 3NC2220 3NA NW SB11 3RF NE NE NC1032 3NC132 3NC2232 3NA NW SB311 3RF NE NE NC1025 2) 3NC132 3NC2232 3NA NW SB171 3RF NE NE NC1032 3NC132 3NC2232 3NA RF NE NE NC150 3NC2250 3NA NW NW SB321 3RF NE NE NC150 3NC2250 3NA NW SB311 3RF NE NE NC150 3NC2250 3NA RF ) 3NE NE NC2280 3NA NW SB331 3RF ) 3NE NE NC2280 3NA NW SB321 3RF ) 3NE NE NC2280 3NA NW SB321 3RF ) 3NE NE NC2280 3NA RF ) 3NE NE NC2200 3NA NW SB331 3RF ) 3NE NE NC2280 2) 3NA NW SB321 3RF ) 3NE ) 3NE NC2280 2) 3NA /8 Siemens LV 1 T 2006

9 Solid-State Relays 3RF21 solid-state relays, 22.5 mm Characteristic curves Dependence of the device current I e on the ambient temperature T K A F M A H I I E 9!! $! $, A L E? A? K HHA JE A ) ) > EA JJA F A H= JK HA E = + 5 *! = A E )! 9 $ 9 9 9! $ Type current 20 A (3RF21 20, 3RF20 20) 1) K A F M A H I I E 9 $ $!!! $!! $, A L E? A? K HHA JE A ) ) > EA JJA F A H= JK HA E = + 5 * = A E ) $ ! % 9 9 Type current 30 A (3RF21 30, 3RF20 30) K A F M A H I I E 9 % $!! $! $, A L E? A? K HHA JE A ) ) > EA JJA F A H= JK HA E = + 5 * = A E ) 9! 9 $ ! Type current 50 A (3RF21 50, 3RF20 50) 1) For arrangement example see next page. Siemens LV 1 T 2006 /9

10 Solid-State Relays 3RF21 solid-state relays, 22.5 K A F M A H I I E 9 $! %! $, A L E? A? K HHA JE A ) ) > EA JJA F A H= JK HA E = + 5 * $ = A E ) 9! % ! 9 9 Type current 70 A (3RF21 70, 3RF20 K A F M A H I I E 9 $! % '! $, A L E? A? K HHA JE A ) ) > EA JJA F A H= JK HA E = + 5 * % = A E ) 9! 9! ' 9 9 $ $ Type current 90 A (3RF21 90, 3RF20 90) Arrangement example Given conditions: I e =20A and T a = 0 C. The task is to find the thermal resistance R thha and the heat sink overtemperature dt ha. From the diagram on the left P M =28W, from the diagram on the right R thha =2.0K/W. This results in: dt ha = R thha PM = 2.0K/W 28W = 56K. At dt ha = 56 K the heat sink must therefore have an R thha =2.0K/W. /10 Siemens LV 1 T 2006

11 Solid-State Relays 3RF21 solid-state relays, 22.5 mm Dimensional drawings Solid-state relays! % $ ' Screw terminal Spring-loaded connection Ring terminal end connection 3RF A.. 3RF A.. 3RF A.. 5 *!! = $ '! Terminal cover 3RF PA88!! $ '! % % 5 * % Schematics Version DC control supply voltage Version AC control supply voltage Switching example 1 L A1 + A2-1 L A1 A2 1/N/PE 50 Hz 230 V L N PE NSB0_ T NSB0_ T F1 F2 K1 S1 ON/OFF 1 L A1 A2 2 T NSB0_0158 R Siemens LV 1 T 2006 /11

12 Solid-State Relays 3RF20 solid-state relays, 5 mm Overview 5 mm solid-state relays The steady-state relays with a width of 5 mm provide for connection of the power supply lead and the load from above. This makes it easy to replace existing solid-state relays in existing arrangements. The connection of the control cable also saves space in much the same way as the 22.5 mm design, as it is simply plugged on. Technical specifications Type General data Ambient temperature 3RF20 During operation, derating from 0 C C During storage C Site altitude m ; derating from 1000 Shock resistance g/ms 15 /11 According to IEC Vibration resistance g 2 According to IEC Degree of protection IP20 Electromagnetic compatibility (EMC) Emitted interference - Conducted interference voltage Class A for industrial applications according to IEC Emitted, high-frequency interference Class A for industrial applications voltage according to IEC Interference immunity - Electrostatic discharge kv Contact discharge ; air discharge 8; behavior criterion 2 according to IEC (corresponds to degree of severity 3) - Induced RF fields MHz ; 10 dbµv; behavior criterion 1 according to IEC Burst according to IEC kv 2/5.0 khz; behavior criterion 1 - Surge according to IEC kv Conductor ground 2; conductor conductor 1; behavior criterion 2 Connection, main contacts, screw connection Conductor cross-section - Solid mm 2 2 x ( ), 2 x ( ) - Finely stranded with end sleeve mm 2 2 x ( ), 2 x ( ), 1 x 10 - Solid or stranded, AWG conductors 2 x (AWG ) Terminal screw M Tightening torque Nm lb.in Connection, auxiliary/control contacts, screw connection Conductor cross-section mm 2 1 x ( ), 2 x ( ), AWG Stripped length mm 7 Terminal screw M3 Tightening torque Nm lb. in Type 3RF A.2 3RF A. 3RF A.5 3RF A.6 Main circuit Rated operational voltage U e V Tolerance % -15/+10 Rated frequency Hz 50/60 10 % Rated insulation voltage U i V 600 Blocking voltage V Rage of voltage rise V/ms /12 Siemens LV 1 T 2006

13 Solid-State Relays 3RF20 solid-state relays, 5 mm Order No. 1) I max I e according to I e according to UL/CSA IEC at R thha /T u = 0 C at R thha /T u = 0 C at R thha /T u = 50 C Power loss at I max Minimum load current Leakage current Main circuit A K/W A K/W A K/W W A ma 3RF A RF A RF A RF A RF A ) I max provides information about the performance of the solid-state relay. The actual permitted rated operational current I e can be smaller depending on the connection method and cooling conditions. Order No. Rated impulse withstand capacity I tsm I 2 t value Main circuit A 3RF A RF A RF A RF A RF A RF A RF A RF A RF A RF A A²s Type 3RF A0. 3RF A2. 3RF A. Control circuit Method of operation DC operation AC operation DC operation Rated control supply voltage U S V 2 according to EN Rated frequency Hz -- 50/60 10 % -- of the control supply voltage Rated control voltage U c V Rated control current at U s ma Response voltage V For tripping current ma Drop-out voltage V Operating times ON-delay ms 1 + additional max. one half-wave 1) 0 + additional max. one half-wave 1) 1 + additional max. one half-wave 1) OFF delay ms 1 + additional max. one half-wave 0 + additional max. one half-wave 1 + additional max. one half-wave 1) Only for zero-point-switching devices. Siemens LV 1 T 2006 /13

14 Solid-State Relays 3RF20 solid-state relays, 5 mm Fused version with solid-state protection (similar to type of coordination 2) 1) The solid-state protection for the SIRIUS SC controlgear can be used with different protective devices. This allows protection by means of LV HRC fuse links of gl/gg operational class or miniature circuit-breakers. Siemens recommends the use of special SITOR semiconductor fuses. The table below lists the maximum permissible fuses for each SIRIUS SC controlgear. If a fuse is used with a higher rated current than specified, solidstate protection is no longer guaranteed. However, smaller fuses with a lower rated current for the load can be used without problems. For protective devices with gl/gg operational class and for SITOR full range fuses 3NE1, the minimum cross-sections for the conductor to be connected must be taken into account. Order No. All-range fuse Solid-state protection fuse LV design LV design Cylindrical design gr/sitor ar/sitor 10 x 38 mm 1 x 51 mm 3NE1 3NE8 ar/sitor ar/sitor 3NC1 0 3NC1 Suitable fuse holders, fuse bases and controlgear can be found in Catalog LV 1, Chapter 19. 1) Type of coordination 2 according to EN : In the event of a short-circuit, the controlgear in the load feeder must not endanger persons or the installation. They must be suitable for further operation. For fused configurations, the protective device must be replaced. 2) These fuses have a smaller rated current than the solid-state relays. 3) These versions can also be protected against short-circuits with miniature circuit-breakers as described in the notes on SIRIUS SC Solid-State Contactors Special Version Short-Circuit Resistant 22 x 58 mm ar/sitor 3NC2 2 Cable and line protection fuse LV design Cylindrical design gl/gg 3NA mm gl/gg 3NW 1 51 mm gl/gg 3NW mm gl/gg 3NW DIAZED quick 5SB 3RF A.2 3NE NE NC1020 3NC120 3NC2220 3NA2803 3NW NW SB171 3RF A. 3NE NE NC1016 3NC120 3NC2220 3NA NW SB11 3RF A.2 3NE NE NC1032 3NC132 3NC2232 3NA NW SB311 3RF A. 3NE NE NC1025 2) 3NC132 3NC2232 3NA NW SB171 3RF A.6 3NE NE NC1032 3NC132 3NC2232 3NA RF A.2 3NE NE NC150 3NC2250 3NA NW NW SB321 3RF A. 3NE NE NC150 3NC2250 3NA NW SB311 3RF A.6 3NE NE NC150 3NC2250 3NA RF A.2 3) 3NE NE NC2280 3NA NW SB331 3RF A. 3) 3NE NE NC2280 3NA NW SB321 3RF A.5 3) 3NE NE NC2280 3NA NW SB321 3RF A.6 3) 3NE NE NC2280 3NA RF A.2 3) 3NE NE NC2200 3NA NW SB331 3RF A. 3) 3NE NE NC2280 2) 3NA NW SB321 3RF A.6 3) 3NE ) 3NE NC2280 2) 3NA Characteristic curves See 3RF21 solid-state relays, 22.5 mm /1 Siemens LV 1 T 2006

15 Solid-State Relays 3RF20 solid-state relays, 5 mm Dimensional drawings 3RF A..!! %!! 5 *! = Schematics Version DC control supply voltage Version AC control supply voltage Switching example 1 L A1 + A2-1 L A1 A2 1/N/PE 50 Hz 230 V L N PE NSB0_ T NSB0_ T F1 F2 K1 S1 ON/OFF 1 L A1 A2 2 T NSB0_0158 R Siemens LV 1 T 2006 /15

16 Solid-State Contactors General data Overview The complete units consist of a solid-state relay plus optimized 3/N/PE 50 Hz 230/00 V heat sink, and are therefore ready to use. They offer defined rated currents to make selection as easy as possible. Depending L1 on the version, current intensities of up to 88 A are achieved. L2 Like all of our solid-state switching devices, one of their particular advantages is their compact and space-saving design. With L3 their insulated mounting foot they can easily be snapped onto a N standard mounting rail, or they can be mounted on carrier plates with fixing screws. This insulation enables them to be used in circuits with protective extra-low voltage (PELV) or safety extralow voltage (SELV) in building engineering. For other applications, such as for extended personal safety, the heat sink can be grounded through a screw connection. Version for resistive loads, Zero-point switching This standard version is often used for switching space heaters on and off. Version for inductive loads, Instantaneous switching In this version the solid-state contactor is specifically matched to inductive loads. Whether it is a matter of frequent actuation of the F1 K1 1 2 I,A L T valves in a filling plant or starting and stopping small drives in packet distribution systems, operation is carried out safely and R1 noiselessly. Special Low noise version Thanks to a special control circuit, this special design can be used in public networks up to 16 A without any additional measures such as interference suppressor filters. As a result it conforms to limit value curve class B according to More information Selecting solid-state contactors EN in terms of emitted interference. Special Short-circuit-resistant version Skilful matching of the power semiconductor with the performance of the solid-state contactor means that short-circuit strength can be achieved with a standard miniature circuitbreaker. In combination with a B-type MCB or a conventional fuse, the result is a short-circuit resistant feeder. In order to achieve problem-free short-circuit protection by means of miniature circuit-breakers, however, certain boundary conditions must be observed. As the magnitude and duration of the short-circuit current are determined not only by the short circuit breaking response of the miniature circuit-breaker but also the properties of the wiring system, such as the internal resistance of the input to the network and damping by controls and cables, particular attention must also be paid to these parameters. The necessary cable lengths are therefore shown for the main factor, the conductor resistance, in the table below. The following miniature circuit-breakers with a type B tripping characteristic and 10 ka or 6 ka breaking capacity protect the 3RF23..-.DA.. solid-state contactors in the event of short-circuits on the load and the specified conductor cross-sections and lengths: Ltg NSB0_0173b F1 K1 3/N/PE 50 Hz 230/00 V L1 L2 L3 N The setup and installation above can also be used for the solid-state relays with a I 2 t value of at least 6600 A 2 s. The solid-state contactors are selected on the basis of details of the power system, the load and the ambient conditions. As the solid-state contactors are already equipped with an optimally matched heat sink, the selection process is considerably simpler than that for solid-state relays. The following procedure is recommended: Determine the rated current of the load and the mains voltage Select a solid-state contactor with the same or higher rated current than the load Check the correct contactor size with the aid of the rated current diagram, taking account of the design conditions 1 L 2 T Ltg F2 I,A R1 Ltg Rated current of the miniature circuitbreaker Example of type 1) 6 A 5SY 106-6, 5SX A 5SY 110-6, 5SX A 5SY 116-6, 5SX A 5SY 116-6, 5SX A 5SY 120-6, 5SX A 5SY 125-6, 5SX Max. conductor cross-section 1 mm 2 5 m 1.5 mm 2 8 m 1.5 mm 2 12 m 2.5 mm 2 20 m 2.5 mm 2 20 m 2.5 mm 2 26 m Cable length from contactor to load 1) The miniature circuit-breakers can be used up to a maximum rated voltage of 80 V. /16 Siemens LV 1 T 2006

17 Solid-State Contactors 3RF23 solid-state contactors Technical specifications Order No. 3RF23..-.A... 3RF23..-.B... 3RF23..-.C... 3RF23..-.D... General data Ambient temperature During operation, derating from 0 C C During storage C Site altitude m ; derating from 1000 Shock resistance g/ms 15/11 According to IEC Vibration resistance g 2 According to IEC Degree of protection IP20 Electromagnetic compatibility (EMC) Emitted interference according to IEC Conducted interference voltage - Emitted, high-frequency interference voltage Class A for industrial applications Interference immunity - Electrostatic discharge according to IEC (corresponds to degree of severity 3) - Induced RF fields kv Contact discharge ; air discharge 8; behavior criterion 2 MHz ; 10 dbµv; behavior criterion 1 Class A for industrial applications; Class B for residential/ business/commercial applications up to 16 A, AC51 Low Noise according to IEC Burst according to IEC kv 2/5.0 khz; behavior criterion 1 - Surge according to IEC kv Conductor ground 2; conductor conductor 1; behavior criterion 2 Class A for industrial applications Order No. 3RF RF RF General data Connection technique Screw terminal Spring-loaded connection Ring cable connection Main contact connection Conductor cross-section -Solid mm 2 2 x ( ), 2 x ( ) 2 x ( ) -- - Finely stranded with end sleeve mm 2 2 x ( ), 2 x ( ), 1 x 10 2 x ( ) -- - Finely stranded without end sleeve mm 2-2 x ( ) -- - Solid or stranded, AWG conductors 2 x (AWG ) 2 x (AWG ) -- Terminal screw M -- M5 Tightening torque Nm lb.in Cable lug -DIN - DIN , -5-6, -5-10, -5-16, JIS - JIS C 2805 R 2-5, 5.5-5, 8-5, 1-5 Connection, auxiliary/control contacts Conductor cross-section mm AWG 1 x ( ), 2 x ( ) AWG AWG Stripped length mm Terminal screw M3 -- M3 Tightening torque Nm lb.in x ( ), 2 x ( ) AWG Type 3RF RF RF RF Main circuit Rated operational voltage U e V Tolerance % -15/+10 Rated frequency Hz 50/60 10 % Rated insulation voltage U i V 600 Blocking voltage V Rage of voltage rise V/µs Siemens LV 1 T 2006 /17

18 Solid-State Contactors 3RF23 solid-state contactors Order No. Type current AC-51 1) Power loss at Minimum load Leakage Rated impulse I 2 t value for I I max current current withstand max according to according to IEC UL/CSA capacity I tsm at 0 C for 0 C for 50 C A A A W A ma A A²s Main circuit 3RF A RF A RF A RF A RF A RF A RF A RF C RF C RF D RF D RF A RF A RF A RF C RF D RF23.-.A RF23.-.A RF23.-.A RF23.-.A RF A RF A.. 3RF A..5 3RF A..6 3RF A RF A.. 3RF A..5 3RF A..6 3RF A RF A.. 3RF A..5 3RF A..6 1) The type current provides information about the performance of the solidstate contactor. The actual permitted rated operational current I e can be smaller depending on the connection method and start-up conditions. For derating see the characteristic curves on page /20. Order No. Type current AC-51 1) Type current AC-15 Power loss Minimum Leakage Rated impulse I 2 t value for I at I max load current current withstand max according to according to Parameters IEC UL/CSA capacity I tsm at 0 C for 0 C for 50 C A A A A W A ma A A²s Main circuit 3RF B /h RF B.. 50% RF B..6 ON -time RF B /h RF B.. 3RF B..6 3RF B % ON -time /h RF B.. 3RF B..6 3RF23.-.B % ON -time /h RF23.-.B.. 50% RF23.-.B..6 ON -time RF B /h RF B.. 3RF B..6 3RF B % ON -time /h RF B.. 3RF B..6 3RF B % ON -time /h RF B.. 3RF B..6 50% ON -time 1) The type current provides information about the performance of the solidstate contactor. The actual permitted rated operational current I e can be smaller depending on the connection method and start-up conditions. For derating see the characteristic curves on page /20. /18 Siemens LV 1 T 2006

19 Solid-State Contactors 3RF23 solid-state contactors Type 3RF RF RF RF Control circuit Method of operation DC operation AC/DC operation AC operation DC operation Rated control supply voltage U s V 2 DC according to 2 AC/DC AC DC EN Rated frequency Hz -- AC 50/60 Hz / -- DC 50/60 10% -- of the control supply voltage Actuating voltage, max. V AC / 30 DC Rated control current at U s A Response voltage V 15 1 AC / 15 DC 90 For tripping current ma > 2 > 2 > 2 > 2 Drop-out voltage V Operating times ON-delay ms 1 + additional max. one half-wave 1) OFF delay ms 1 + additional max. one half-wave 1) Only for zero-point-switching devices. Fused version with solid-state protection (similar to type of coordination 2) 1) The solid-state protection for the SIRIUS SC controlgear can be used with different protective devices. This allows protection by means of LV HRC fuse links of gl/gg operational class or miniature circuit-breakers. Siemens recommends the use of special SITOR semiconductor fuses. The table below lists the maximum permissible fuses for each SIRIUS SC control gear. AC: 0 + additional max. one half-wave 1) DC: 1 + additional max. one half-wave 1) AC: 1 + additional max. one half-wave DC: 1 + additional max. one half-wave 0 + additional max. one half-wave 1) 0 + additional max. one half-wave 1 + additional max. one half-wave 1) 1 + additional max. one half-wave If a fuse is used with a higher rated current than specified, solidstate protection is no longer guaranteed. However, smaller fuses with a lower rated current for the load can be used without problems. For protective devices with gl/gg operational class and for SITOR full range fuses 3NE1, the minimum cross-sections for the conductor to be connected must be taken into account. Order No. All-range fuse Solid-state protection fuse LV design LV design Cylindrical design gr/sitor ar/sitor 10 x 38 mm 1 x 51 mm 3NE1 3NE8 ar/sitor ar/sitor 3NC1 0 3NC1 22 x 58 mm ar/sitor 3NC2 2 Cable and line protection fuse LV design Cylindrical design gl/gg 3NA mm gl/gg 3NW 1 51 mm gl/gg 3NW mm gl/gg 3NW DIAZED quick 5SB 3RF NE NE NC1010 3NC110 3NC2220 3NA2803 3NW NW SB11 3RF NE NE NC1010 3NC110 3NC2220 3NA2801 3NW NW SB11 3RF NE NE NC1010 3NC110 3NC2220 3NA RF NE NE NC1020 3NC120 3NC2220 3NA2807 3NW NW NW SB171 3RF NE NE NC1020 3NC120 3NC2220 3NA2807 3NW NW NW SB171 3RF NE NE NC1020 3NC120 3NC2220 3NA RF NE NE NC1020 3NC120 3NC2220 3NA RF NE NE NC1032 3NC132 3NC2232 3NA NW NW SB311 3RF NE NE NC1032 3NC132 3NC2232 3NA NW NW SB311 3RF NE NE NC1032 3NC132 3NC2232 3NA RF NE NE NC10 3NC220 3NA NW NW SB321 3RF NE NE NC10 3NC220 3NA NW NW SB321 3RF NE NE NC10 3NC220 3NA RF NE NE NC10 3NC220 3NA RF NE NE NC150 3NC2250 3NA NW NW SB321 3RF NE NE NC150 3NC2250 3NA NW SB321 3RF NE NE NC150 3NC2250 3NA RF NE NE NC150 3NC2250 3NA RF NE NE NC2280 3NA NW SB331 3RF NE NE NC2280 3NA NW SB321 3RF NE NE NC2280 3NA RF NE NE NC2280 3NA RF NE NE NC2200 3NA NW SB331 3RF NE NE NC2280 2) 3NA NW SB321 3RF NE ) 3NE NC2280 2) 3NA RF NE ) 3NE NC2280 2) 3NA Suitable fuse holders, fuse bases and controlgear can be found in Catalog LV 1, Chapter 19. 1) Type of coordination 2 according to EN : In the event of a short-circuit, the controlgear in the load feeder must not endanger persons or the installation. They must be suitable for further operation. For fused configurations, the protective device must be replaced. 2) These fuses have a smaller rated current than the solid-state contactors. Siemens LV 1 T 2006 /19

20 Solid-State Contactors 3RF23 solid-state contactors Characteristic curves Derating curves For derating see the characteristic curves on page /22. A E ) K A F M A H I I E 9 $! $ $ ) > EA JJA F A H= JK HA E = +, A L E? A? K HHA JE A ) 5 * $ = Type current 10.5 A (3RF23 10)!! A E K A F M A H I I E 9 $! $ $ ) > EA JJA F A H= JK HA E = +, A L E? A? K HHA JE A ) 5 * % = Type current 20 A (3RF23 20) A E K A F M A H I I E 9! $! $! $ 5 * = $!! $ ) > EA JJA F A H= JK HA E = +, A L E? A? K HHA JE A ) Type current 30 A (3RF AA.., -.BA.., -.CA..) /20 Siemens LV 1 T 2006

21 Solid-State Contactors 3RF23 solid-state contactors e in A Module power loss M in W Ambient temperature a in C NSB0_ Device current e in A Type current 30 A (3RF DA..) $ $ A E K A F M A H I I E 9! $! $ 5 * ' = $! ) > EA JJA F A H= JK HA E = +, A L E? A? K HHA JE A ) Type current 0 A (3RF23 0) 1) % % A E ) K A F M A H I I E 9 $!! $ 5 * =! $ ) > EA JJA F A H= JK HA E = +, A L E? A? K HHA JE A ) Type current 50 A (3RF23 50) 1) Siemens LV 1 T 2006 /21

22 Solid-State Contactors 3RF23 solid-state contactors A E ) K A F M A H I I E 9 $! $ 5 * = $ ' ) > EA JJA F A H= JK HA E = +, A L E? A? K HHA JE A ) Type current 70 A (3RF23 70) 1) A E ) K A F M A H I I E 9 $! $ 5 * = $ ' ) > EA JJA F A H= JK HA E = +, A L E? A? K HHA JE A ) Type current 88 A (3RF23 90) 1) = N 6 D A H = E EJ? K HHA JB EL K = K JE C = N 6 D A H = E EJ? K HHA JB HI A > O I A K JE C K HHA J=?? J 1- + ' %! B EL K = K JE C K HHA J=?? J 1- + ' %! B HI A > O I A K JE C 1) Identical current/temperature curves for stand-alone and side-by-side installation. /22 Siemens LV 1 T 2006

23 Solid-State Contactors 3RF23 solid-state contactors Dimensional drawings Type current 10.5 A and 20 A 3RF RF RF DA Screw terminal 3RF RF RF DA.. 22,5,5 Spring-loaded connection 3RF RF RF DA.. Ring terminal end connection 3RF RF RF DA Standard mounting rail 25 1,5 7, ,8 12,5 1,5 NSB0_ ,5 100,5 5 12,5 Type current 30 A Screw terminal 3RF A..,-1.B.. Ring terminal end connection 3RF A.., -3.B.. 13,5 5,5 5 30,5 85 Standard mounting rail ,5 69 7, ,5 1,5 NSB0_ , ,5 Type current 0 A and 50 A Screw terminal 3RF RF Ring terminal end connection 3RF RF , ,5,5 85 Standard mounting rail ,5 69 7, ,5 1,5 NSB0_ , ,5 Siemens LV 1 T 2006 /23

24 Solid-State Contactors 3RF23 solid-state contactors Type current 70 A!! % $ ' Screw terminal Ring terminal end connection 3RF RF * $ ' % Type current 88 A $ % $ ' $ ' 5 * = ' Screw terminal Ring terminal end connection 3RF RF % $ Terminal cover 3RF PA88! % Schematics Version DC control supply voltage Version AC control supply voltage 1 L PE A1 + 1 L PE A1! $ A2 - A2 % 5 * % NSB0_016 2 T NSB0_ T /2 Siemens LV 1 T 2006

25 3RF29 Function Modules General data Overview Function modules for SIRIUS SC solid-state switching devices A great variety of applications demand an expanded range of functionality. With our function modules, these requirements can be met really easily. The modules are mounted simply by clicking them into place; straight away the necessary connections are made with the solid-state relay or contactor. The plug-in connection to control the solid-state switching devices can simply remain in use. The following function modules are available: Converters Load monitoring Heating current monitoring Power controllers Technical specifications Type 3RF29..-.E... 3RF29..-.F... 3RF29..-.G... 3RF29..-.H... 3RF29..-.J... General data Ambient temperature During operation, derating from 0 C C During storage C Site altitude m ; derating from 1000 Shock resistance g/ms 15/11 According to IEC Vibration resistance g 2 According to IEC Degree of protection IP20 Electromagnetic compatibility (EMC) Emitted interference - Conducted interference voltage Class A for industrial applications 1) according to IEC Emitted, high-frequency interference Class A for industrial applications voltage according to IEC Interference immunity - Electrostatic discharge kv Contact discharge ; air discharge 8; behavior criterion 2 according to IEC (corresponds to degree of severity 3) - Induced RF fields MHz ; 10 dbmv; behavior criterion 1 according to IEC Burst according to IEC kv/5.0 khz; behavior criterion 1 - Surge according to IEC kv Conductor ground 2; conductor conductor 1; behavior criterion 2 Connection, auxiliary/control contacts, screw terminal Conductor cross-section mm 2 1 x ( ), 2 x ( ), 1 x (AWG ) Stripped length mm 7 Terminal screw M3 Tightening torque Nm Converter, diameter of hole mm ) Note limitations for power controller function module on Siemens LV 1 T 2006 /25

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