Datasheet Electronic Circuit Protection ESX0-T selected in fixed values from 0.5 A...2 A. Failure and status indication are provided by a multicolour LED and an integral short-circuit-proof status output or a relay signal contact. Remote operation is possible by means of a remote reset signal or a remote ON/OFF control signal. The manual ON/OFF button allows separate actuation and reset of individual circuits. Upon detection of over or short circuit in the circuit, the MOSFET of the output will be blocked to interrupt the current flow. The circuit can be re-activated via the remote electronic reset input, control input or manually by means of the ON/OFF button. Electronic circuit protection type ESX0-T is designed to ensure selective disconnection of 24VDC systems. 24VDC power supplies, which are widely used in industry today, will shut down the output in the event of an over with the result that one faulty in the system can lead to complete disconnection of all s. Through selective disconnection the ESX0-T responds much faster to over or short circuit conditions than the switch-mode power supply. This is achieved by active current limitation. The ESX0-T limits the highest possible current to.3 to.8 times the selected rated current of the circuit protector. Thus it is possible to switch on capacitive s of up to 20,000 µf, but they are disconnected only in the event of an over or short circuit. For optimal alignment with the characteristics of the application the current rating of the ESX0-T can be Features Selective protection, electronic trip characteristics Active current limitation for safe connection of capacitive s up to 20,000 µf and on over/short circuit Current ratings 0.5 A...2 A Reliable over disconnection with. x In plus, even with long lines or small cable cross sections (see table 3) Manual ON/OFF button (S) Control input IN+ for remote ON/OFF signal (option) Electronic reset input RE (option) Clear status and failure indication through LED, status output SF or Si contact F Integral fail-safe element adjusted to current rating Width per unit only 2.5 mm Rail mounting Ease of wiring through busbar and 0 V as well as signal bars and bridges Canada Weidmuller, Canada 0 Spy Court Markham, Ontario L3R 5H6 Telephone: (800) 268-4080 Facsimile: (905) 475-2798 Email: info@weidmuller.ca Website: www.weidmuller.ca Mexico Weidmuller, Mexico Blvd. Hermanos Serdán 698 Col. San Rafael Oriente Puebla, Puebla, Mexico C.P. 72029 Telephone: 0 222 2686267 Facsimile: 0 222 268629 Email: clientes@weidmuller.com.mx Website: www.weidmuller.com.mx United States Weidmuller 82 Southlake Blvd. Richmond, Virginia 23236 Telephone: (800) 849-9343 Facsimile: (804) 379-2593 Email: info@weidmuller.com Website: www.weidmuller.com
Electronic Circuit Protection Approvals Technical data (Tambient = 40 C, operating voltage Ub = 24VDC) ESX0-T Authority Voltage rating Current ratings UL 2367 (E306740) 24VDC 0.5...2 A UL 604 (E322549) (class I, div. 2, group A, B, C, D) 24VDC 0.5...2 A UL508 / cul 508 24VDC 0.5...2 A CSA C22.2 No: 23 (class, division 2) pending CSA C22.2 No: 42 pending Class 2 Meets requirement for Class 2 current limitation (ESX0-T -0.5 A / A / 2 A / 3 A) Technical data Operating data Operating voltage Ub 24VDC (8...32 V) (Tambient = 40 C, operating voltage Ub = 24VDC) Current rating In fixed current ratings: 0.5, A, 2 A, 3 A, 4 A, 6 A, 8 A, 0 A, 2 A Closed current I0 Status indication by means of Load circuit Load output Over disconnection ON condition: typically 20...30 ma depending on signal output multicolour LED: GREEN: unit is ON, power-mosfet is switched on - status output SF ON, supplies + 24VDC ORANGE: in the event of over or short circuit until electronic disconnection RED: - unit electronically disconnected - circuit/power-mosfet OFF OFF: - manually switched off (S = OFF) or device is dead - undervoltage (U b < 8 V) - after switch-on till the end of the delay period status output SF (option) potential-free signal contact F (option) ON/OFF/ condition of switch S Power-MOSFET switching output (high side switch) typically. x In (.05...35 x In) Short-circuit current IK active current limitation (see table ) Trip time for electronic disconnection Temperature disconnection Low voltage monitoring output Starting delay tstart Disconnection of circuit Free-wheeling circuit see time/current characteristics typically 3 s at ILoad >. x In typically 3 s...00 ms at ILoad >.8 x In (or.5 x In/.3 x In) internal temperature monitoring with electronic disconnection with hysteresis, no reset required OFF at Ub < 8 V typically 0.5 sec after every switch-on and after applying Ub electronic disconnection Several outputs must not be connected in parallel external free-wheeling diode recommended with inductive Status output SF Electrical data Status OUT OFF condition Signal output F Electrical data ON condition LED green OFF condition LED off Fault condition LED orange Fault condition LED red ESX0-TB-0 ESX0-TB-02 Fault Reset input RE Electrical data Reset signal RE (terminal 22) Control input IN+ Electrical data Control signal IN+ (terminal 2) Switch S ON/OFF ESX0-TB-4/-24/ plus-switching signal output, connects Ub to terminal 2 of module 7plus nominal data: 24VDC / max. 0.2 A (short circuit proof) status output is internally connected to GND with a 0 kohm resistor ESX0-TB-4/-24 (signal status OUT), at Ub = +24 V +24 V = S is ON, output connected through 0V = S is ON, output blocked and/or switch S is OFF red LED lighted 0 V level at status output when: switch S is in ON position, but device is still in switch-on delay switch S is OFF, or control signal OFF, device is switched off no operating voltage Ub ESX0-TB-0/-02 potential-free signal contact max. 30VDC/0.5 A, min. 0 V/0 ma voltage Ub applied, switch S is in ON position no over, no short circuit device switched off (switch S is in OFF position) no voltage Ub applied over condition >. x In up to electronic disconnection electronic disconnection upon over or short circuit device switched off with control signal (switch S is in ON position) single signal, make contact contact SC/SO-SI open single signal, break contact contact SC/SO-SI closed signal output fault conditions: no operating voltage Ub ON/OFF switch S is in OFF position red LED lighted (electronic disconnection) ESX0-TB-24 voltage: max. +32VDC high > 8VDC 32VDC low 3VDC > 0 V power consumption typically 2.6 ma (+24VDC) min. pulse duration typically 0 ms The electronically blocked ESX0-TB-24 may remotely be reset via an external momentary switch due to the falling edge of a +24 V pulse. A common reset signal can be applied to several devices simultaneously. Switched on devices remain unaffected. ESX0-TB-4 see reset input RE +24V level (HIGH): device will be switched on by a remote ON/OFF signal 0 V level (LOW): device will be switched off by a remote ON/OFF signal unit can only be switched on with S if a HIGH level is applied to IN+ 2
ESX0-T Electronic Circuit Protection Technical data (Tambient = 40 C, operating voltage Ub = 24VDC) Table : voltage drop, current limitation, max. current General data Fail-safe element: backup fuse for ESX0-T not required because of the integral redundant fail-safe element Terminals / LOAD+ / 0V screw terminals M4 max. cable cross section flexible with wire end ferrule w/wo plastic sleeve 0.5-0 mm 2 multi-lead connection (2 identical cables) rigid/flexible 0.5-4 mm 2 flexible with wire end ferrule without plastic sleeve 0.5-2.5 mm 2 flexible with TWIN wire end ferrule with plastic sleeve 0.5-6 mm 2 wire stripping length 0 mm tightening torque (EN 60934).2 Nm Terminals aux. contacts screw terminals M3 max. cable cross section flexible with wire end ferrule w/wo plastic sleeve 0.25 2.5 mm 2 wire stripping length 8 mm tightening torque (EN 60934) 0.5 Nm Housing material moulded Mounting symmetrical rail to EN 50022-35x7.5 Ambient temperature 0...+50 C (without condensation, see EN 60204-) Storage temperature -20...+70 C Humidity 96 hrs/95 % RH/40 C to IEC 60068-2-78-Cab climate class 3K3 to EN 6072 Vibration 3 g, test to IEC 68-2-6 test Fc Degree of protection housing: IP20 DIN 40050 terminals: IP20 DIN 40050 EMC emission: EN 6000-6-3 (EMC directive, CE logo) susceptibility: EN 6000-6-2 Insulation co-ordination 0.5 kv/2 pollution degree 2 (IEC 60934) re-inforced insulation in operating area dielectric strength max. 32VDC ( circuit) Insulation resistance (OFF condition) n/a, only electronic disconnection Approvals UL 2367, File E306740, Solid State Overcurrent Protectors UL 604 (class I, div. 2, zone 2), UL508 pending, CE logo Dimensions (W x H x D) 2.5 x 80 x 83 mm Mass approx. 65 g current rating typically voltage drop active current max. current at 00% ON duty In Uon at In limitation (typically) Tu = 40 C Tu = 50 C 0.5 A 70 mv.8 x In 0.5 A 0.5 A A 80 mv.8 x In A A 2 A 30 mv.8 x In 2 A 2 A 3 A 80 mv.8 x In 3 A 3 A 4 A 00 mv.8 x In 4 A 4 A 6 A 30 mv.8 x In 6 A 5 A 8 A 20 mv.5 x In 8 A 7 A 0 A 50 mv.5 x In 0 A 9 A 2 A 80 mv.3 x In 2 A 0.8 A Attention: when mounted side-by-side without convection the ESX0-T should not carry more than 80% of its rated with 00% ON duty due to thermal effects. Please note: The user should ensure that the cable cross sections of the relevant circuit are suitable for the current rating of the ESX0-T used. Automatic start-up of machinery after shut down must be prevented (Machinery Directive 98/37/EG and EN 60204-). In the event of a short circuit or over the circuit will be disconnected electronically by the ESX0-T. Table 2: ESX0-T - product version Version Signal input Signal output Signal contact Status output without Control input Remote without single signal single signal without Status Signal ON/OFF Reset Reset Signal N/O N/C Signal output Input Output (normally open NO) (normally closed NC) Output = OK ESX0-TA-00 x x x ESX0-TB-0 x x x ESX0-TB-02 x x x ESX0-TB-4 x x ESX0-TB-24 x x x ESX0-TA-00 Current Rating Circuit Protection 0.5 6720005305 672000530 2 6720005302 3 6720005303 4 6720005304 6 6720005306 8 6720005308 0 672000530 2 672000532 ESX0-TB-0 Current Rating N/C Contact 0.5 6720005320 672000532 2 6720005322 3 6720005323 4 6720005324 6 6720005326 8 6720005328 0 6720005330 2 6720005332 ESX0-TB-02 Current Rating N/C Contact 0.5 6720005340 672000534 2 6720005342 3 6720005343 4 6720005344 6 6720005346 8 6720005348 0 6720005350 2 6720005352 ESX0-TB-4 Current Rating Control Input 0.5 6720005360 672000536 2 6720005362 3 6720005363 4 6720005364 6 6720005366 8 6720005368 0 6720005370 2 6720005372 ESX0-TB-24 Current Rating Reset Input 0.5 6720005380 672000538 2 6720005382 3 6720005383 4 6720005384 6 6720005386 8 6720005388 0 6720005390 2 6720005392 3
Electronic Circuit Protection ESX0-T ESX0-T Signal inputs / outputs (wiring diagram) ESX0-TA-00 without signal input/output ESX0-TB-0 without signal input with signal output F (single signal, N/O) ESX0-TB-02 without signal input with signal output F (single signal, N/C) 4 2 3 2 LOAD+ operating condition: 3-4 closed fault condition: 3-4 open operating condition: -2 open fault condition: -2 closed ESX0-TB-4 with control input IN+ (+24VDC) with status output SF (+24 V = output ON) ESX0-TB-24 with reset input RE (+24VDC ) with status output SF (+24 V = output ON) Dimensions 83 2.5 3.27.492 SF 23 SF 23 IN 2 RE 22 80 3.5 80 3.5 label snap-on socket for symmetrical rail EN 50022-35x7.5 operating condition: SF +24 V = OK fault condition: SF 0 V operating condition: SF +24 V = OK fault condition: SF 0 V This is a metric design and millimeter dimensions take precedence ( mm ) inch 4
ESX0-T Electronic Circuit Protection Time/Current characteristic curve (Tambient = 40 C) trip time in seconds 0000 000 00 0 5 0. disconnection typically. x I n.8 x I n *) current limitation *) typically.8 x I n The trip time is typically 3 s in the range between. and.8 x In *). Electronic current limitation occurs at typically.8 x In *) which means that under all over conditions (independent of the power supply and the resistance of the circuit) the max. over before disconnection will not exceed.8 x In *) times the current rating. Trip time is between 00 ms and 3 sec (depending on over or at short circuit). 0.0 0 2 3 4 5 IK...times rated current *) current limitation typically.8 x In times rated current at In = 0.5 A...6 A current limitation typically.5 x In times rated current at In = 8 A or 0 A current limitation typically.3 x In times rated current at In = 2 A Without this current limitation a considerably higher over current would flow in the event of an over or short circuit. Table 3: Reliable trip of ESX0-T Reliable trip of ESX0-T with different cable lengths and cross sections Resistivity of copper ρ 0 = 0.078 (Ohm x mm 2 ) / m Ub = DC 9.2 V (= 80 % of 24 V) voltage drop of ESX0-T and tolerance of trip point (typically. x In =.05....35 x In) have been taken into account. ESX0-T-selected rating In (in A) 3 6 e. g. trip current Iab =.25 x In (in A) 3.75 7.5 ESX0-T trips after 3 s Rmax in Ohm = (Ub / Iab) - 0.050 5.07 2.5 The ESX0-T reliably trips from 0 Ohm to max. circuitry resistance Rmax Cable cross section A in mm 2 0.4 0.25 0.34 0.5 0.75.5 cable length L in meter cable resistance in Ohm = (R0 x 2 x L) / A (= single length) 5.27 0.7 0.52 0.36 0.24 0.8 0.2 0 2.54.42.05 0.7 0.47 0.36 0.24 5 3.8 2.4.57.07 0.7 0.53 0.36 20 5.09 2.85 2.09.42 0.95 0.7 0.47 25 6.36 3.56 2.62.78.9 0.89 0.59 30 7.63 4.27 3.4 2.4.42.07 0.7 35 8.90 4.98 3.66 2.49.66.25 0.83 40 0.7 5.70 4.9 2.85.90.42 0.95 45.44 6.4 4.7 3.20 2.4.60.07 50 2.7 7.2 5.24 3.56 2.37.78.9 75 9.07 0.68 7.85 5.34 3.56 2.67.78 00 25.34 4.24 0.47 7.2 4.75 3.56 2.37 25 3.79 7.80 3.09 8.90 5.93 4.45 2.97 50 38.4 2.36 5.7 0.68 7.2 5.34 3.56 75 44.50 24.92 8.32 2.46 8.3 6.23 4.5 200 50.86 28.48 20.94 4.24 9.49 7.2 4.75 225 57.2 32.04 23.56 6.02 0.68 8.0 5.34 250 63.57 35.60 26.8 7.80.87 8.90 5.93 Example : max. length at.5 mm 2 and 3 A 24 m Example 2: max. length at.5 mm 2 and 6 A 06 m Example 3: mixed wiring: R = 40 m in.5 mm 2 and R2 = 5 m in 0.25 mm 2 : (Control cabinet sensor/actuator level) R = 0.95 Ohm, R2 = 0.7 Ohm Total (R + R2) =.66 Ohm 5
Electronic Circuit Protection ESX0-T Mounting examples for ESX0-T The ESX0-T features an integral power distribution system. busbar 672000535 continuous busbar 500 mm length, cut (2.5 x n)-3 = length of busbars ± 0.5 e. g. (2.5 x 5)-3 = 59.5 ± 0.5 signal bar 672000536 or jumper 672000537 remove protection against brush contact from bottom side 0V busbar 672000535 insert protection against brush contact insert busbars and protection slides to be flush with housing sides 2.5 x n = width of protector block e. g. 2.5 x 5 = 62.5 insert signal bars to be flush with housing and place them centrally over the contacts 5 ESX0-TB with busbars and jumpers 5 ESX0-TA with busbars Mounting procedure: Before wiring insert busbars into protection block. 6
ESX0-T Electronic Circuit Protection Connection diagrams and application examples ESX0-T Signal contacts are shown in OFF or fault concition. ESX0-TA-00 ESX0-TB-0 group signaling (series connection) terminals for busbars screw terminals for the SI busbar LINE + busbar +24V +24V 3 4 3 4 3 4 group signalling by means of an LED power supply DC 24 V ESX0-TA-00 ESX0-TA-00 ESX0-TA-00 power supply DC 24 V ESX0-TB-0 ESX0-TB-0 ESX0-TB-0 jumpers are staggered 0V 0V 0 V busbar 0 V busbar - line entry - line entry + + + - - - ESX0-TB-02 ESX0-TB-24 Single signaling with common line entry Single signaling with common reset for the SI single signalling per way by means of an LED reset button single signalling per way by means of an LED busbar busbar +24V +24V 2 2 2 22 RE SF 23 22 RE SF 23 22 RE SF 23 power supply DC 24 V ESX0-TB-02 ESX0-TB-02 ESX0-TB-02 signal busbar for common line entry power supply DC 24 V ESX0-TB-24 ESX0-TB-24 ESX0-TB-24 signal busbar for common reset 0 V 0V 0 V busbar 0 V busbar - line entry - line entry 7
Electronic Circuit Protection ESX0-T Accessories for ESX0-T Description The ESX0-T features an integral power distribution system. The following wiring modes are possible with various pluggable current and signal busbars: LINE +(24VDC) 0 V Caution: The electronic devices ESX0-T require a 0 V connection signal contacts reset inputs Description Part No. Busbars for and 0 V 672000535 max. with one line entry Imax 50 A (recommended: centre line entry) max. with two line entries Imax 63 A length: 500 mm Signal busbars for signal contacts and reset inputs 672000536 max. with one line entry Imax A with one series connection of signal contacts Imax 0.5 A length: 500 mm Jumpers for signal contacts 672000537 length: packing unit: 2 mm 0 pcs All dimensions without tolerances are for reference only. In the interest of improved design, performance and cost effectiveness the right to make changes in these specifications without notice is reserved. Product markings may not be exactly as the ordering codes. Errors and omissions excepted. 8 07/09 2.5M LIT0806