Miniature circuit breakers. Residential current circuit breakers. Busbar systems. Comfort functions/energy control. Residential enclosures

Size: px

Start display at page:

Download "Miniature circuit breakers. Residential current circuit breakers. Busbar systems. Comfort functions/energy control. Residential enclosures"

Marian Hicks
6 years ago
Views:

1 Technical data Series ME07 Standard range S, S, 0/690V/AC High performance range H, 0/690V/AC High performance range H/S, 000V/AC Disconnecting switch MET DC circuit breaker ME 6T up to 0V/DC Miniature circuit breakers Residential current circuit breakers A B Order codes Circuit breakers Series ME07 Standard range S, 0V/AC Standard range S/S, 690V/AC High performance range H, 0V/AC High performance range H, 690V/AC High performance range H/S, 000V/AC Disconnecting switches Series MET Standard range S, 0V/AC Standard range S/S, 690V/AC High performance range H, 0V, High performance range H, 690V/AC High performance range H, 000V/AC DC disconnecting breaker range MEGT 000V/DC DC disconnecting breaker range MEGT 0V/DC Accessories Electronic trip unit for AC Operating mechanism Accessories for Series ME and MET Busbar systems Comfort functions/energy control Residential enclosures Contactors/Soft starters/speed drives Overload relays Control and signalling units Manual motor starters C D E F G H I.7.8 Withdrawable technique Craddles and accessories Replacement parts Moulded case circuit breakers J Fuse systems/loadbreak disconnectors L General purpose enclosures M System enclosures N Numerical index X.

Series ME07 690V/AC up to A Two ranges of circuit breakers Series ME for time delayed selectivity with different breaking capacities in each frame offer a compact and economic solution for all

Rated shortcircuit breaking capacity at V according to IEC 92 Certifications ABS American Bureau of Shipping BV Bureau Veritas DNV Det Norske Veritas GL German Lloyd LRoS Lloyd s Register of Shipping

2 Series ME07 690V/AC up to A Two ranges of circuit breakers Series ME for time delayed selectivity with different breaking capacities in each frame offer a compact and economic solution for all installations. Rated shortcircuit breaking capacity at V according to IEC 92 Certifications ABS American Bureau of Shipping BV Bureau Veritas DNV Det Norske Veritas GL German Lloyd LRoS Lloyd s Register of Shipping RINA Registro Italiano Navale RMRoS Russian Maritime Register of Shipping Conformity The circuit breakers Series ME07 comply with the standard Lowvoltage switchgear and controlgear VDE 06 Part 0, respectively IEC 92 and VDE 0. The disconnecting switches Series MET are in accordance with the standard Lowvoltage switchgear and controlgear VDE 06 Part 07, respectively IEC 9 and VDE 0. Standard range S The solution for heavy power distribution requirements with sufficiently high breaking capacity for complete time selective discrimination. High performance range H The compact solution for distribution of extremely high power levels up to 00 ka in industrial and marine installations in each frame. Complete line Compact, robust steel frame construction which reduces the space requirements within enclosures. Circuit breakers and disconnecting switches. Fixed and withdrawable versions. Appearance of the operator control panel in a modern industry design is identical for the complete productline. Drive mechanisms, trip units and accessories e.g. undervoltage trip, shunt trip and auxiliary contacts are common for all frame s. Manual or motor operated stored energy drive mechanism for direct and remote actuation. Microprocessor controlled trip units for advanced protection. Bus connection. Design and specifications are subject to change without notice..2

3 Technical data Series ME07S Standard range 0 poles up to A Series ME Rated insulation voltage Ui Rated impulse withstand voltage Uimp Pollution degree Rated voltage Ue Ie Pollution degree IP00 For use in enclosures with interior temperatures of to ºC, the relevant IP00 values can be applied basically. Connection cross sections are to be rated to the rated current of the equipment. Rated breaking capacity Icn according to IEC 92 (RMS values) Power supply to top or bottom Icu = Ics Rated making capacity Icm Peak values Rated short time current Icw Selectivity when Switching ON RMS values (making current trip type kse) Setting value ksetrip (RMS value) Selectivity with breaker ON Total breaking time via kse trip via bse trip unit s channel via bse trip unit k channel Number of poles Mechanical endurance without maintenance with maintenance Switching frequency Total power losses at rated current and breaker at operating temperature fi xed version withdrawable version Temperature C (A) C (A) C (A) C (A) C (A) AC 0/V (ka) AC 0V (ka) AC 690V () (ka) AC 0/V (ka) AC 0V (ka) AC 690V () (ka) 0.s (ka).0s (ka).0s (ka) (ka) x0 ops. x0 ops. ops. /h (ka) (ka) (ms) (ms) (ms) (W) (W) 0/690V/AC 0 67S 807S 007S 257S 7S 07S 27S 7S AC 000V 8kV Up to AC 690V Fixed and withdrawable Series ME07 () Values for 690V version.

4 Technical data Series ME07H High performance range poles up to A Series ME Rated insulation voltage Ui Rated impulse withstand voltage Uimp Pollution degree Rated voltage Ue Ie Pollution degree IP00 For use in enclosures with interior temperatures of to ºC, the relevant IP00 values can be applied basically. Connection cross sections are to be rated to the rated current of the equipment. Rated breaking capacity Icn according to IEC 92 (RMS values) Power supply to top or bottom Icu = Ics DC 2V, T = L/R = 5 ms () DC 4V, T = L/R = 5 ms () DC 7V, T = L/R = 5 ms () Rated making capacity Icm Peak values Rated short time current Icw Selectivity up to (at ON operation as well) RMS values Instantaneous short circuit trip type ks RMS values Peak values Total breaking time via ks trip via bse trip unit s channel via bse trip unit k channel Number of poles Mechanical endurance without maintenance with maintenance Switching frequency Total power losses (pole) at rated current and breaker at operating temperature fi xed version withdrawable version Temperature C (A) C (A) C (A) C (A) C (A) AC 0/V (ka) AC 4V (ka) AC 0V (ka) AC 690V (ka) AC 000V (ka) (ka) (ka) (ka) AC 0/V (ka) AC 4V (ka) AC 0V (ka) AC 690V (ka) AC 000V (ka) 0.s (ka).0s (ka).0s (ka) x0 ops. x0 ops. ops. /h (ka) (ka) (ms) (ms) (ms) (W) (W) 0/690 V/AC 0 67H 807H 007H 257H 7H 07H 27H 7H AC 000V 8kV Up to AC 000V up to DC 7V () Fixed and withdrawable 00 (2) 00 (2) (2) 00 (2) (2) 00 (2) (2) 00 (2) () For DC applications see section Series ME07 for DC Applications on pages.6,.7 (2) Withdrawable version Icu 80kA.4

Special versions Series ME07 000V/AC up to A The air circuit breakers are suitable for use in distributions of high power levels up to a rated voltage of AC 000V.

5 Special versions Series ME07 000V/AC up to A The air circuit breakers are suitable for use in distributions of high power levels up to a rated voltage of AC 000V. For these applications the standard types ME07H are provided with modified heightened arc chutes to cover the requirements at the higher rated voltage. Terminations are rear side suitable only for horizontal plane. Power supply can be either on upper or lower terminals. The fixed version of the circuit breaker can be mounted on the base without additional parts. A withdrawable version is not available. For accessories eg. motor drives, trip units, auxiliary trips please refer to the pages.7. Series ME07 Conformity The circuit breakers type ME07 comply with the standard Lowvoltage switchgear and controlgear VDE 06 Part 0, respectively IEC 92. Technical data Series ME Rated insulation voltage Ui Rated impulse withstand voltage Uimp Pollution degree Rated voltage Ue Ie Pollution degree IP00 For use in enclosures with interior temperatures of to ºC, the relevant IP00 values can be applied basically. Connection cross sections are to be rated to the rated current of the equipment. Rated breaking capacity Icn according to IEC 92 (RMS values) Power supply to top Icu = Ics Rated making capacity Icm Peak values Temperature C (A) C (A) C (A) C (A) C (A) AC 000V (ka) AC 000V (ka) 0 67H 807H 007H 257H 7H 07H 7H AC 000V 8kV Up to AC 000V Fixed () Power supply only on upper terminals..5

6 Special versions Series MET07H 7V/DC up to A Conformity The disconnecting switch MET07 comply with the standard Lowvoltage switchgear and control gear VDE 06 Part 07, respectively IEC 9. For DC applications up to DC 7 V the standard pole types MET07H 690V version can be selected. Due to identical dimensions the circuit breakers are available as fixed and withdrawable types. For accessories e.g. motordrives, auxiliary trips, cradles, please refer to the pages.59. Installation The three pole disconnecting switch must be connected in the DC network as shown in the diagram. +() (+) Power supply Power supply can be either on upper or lower terminals. Technical data Series MET07H Rated insulation voltage Ui Rated impulse withstand voltage Uimp Pollution degree Rated voltage Ue Ie Pollution degree IP00 For use in enclosures with interior temperatures of to ºC, the relevant IP00 values can be applied basically. Connection cross sections are to be rated to the rated current of the equipment. Rated breaking capacity Icn according to IEC 92 Power supply to top or bottom Icu = Ics Temperature C (A) C (A) C (A) C (A) C (A) DC 2V,T=L/R=5ms (ka) DC 4V,T=L/R=5 ms (ka) DC 7V,T=L/R=5 ms (ka) 0 67H 807H 007H 257H 7H 07H 27H 7H DC 000V 8kV Up to DC 7V Fixed and withdrawable

7 Special versions Series MEGT07 0V/0V/DC 2 up to 00 A The air circuit breakers MEGT07 are suitable for use as disconnecting switch in DC distributions up to a rated voltage of DC 0V (single pole breaking) and DC 0V (two pole breaking in series). For these applications the standard pole types MET07H are provided with modified heightened arc chutes to cover the requirements. For accessories e.g. motordrives, auxiliary trips please refer to pages.57. Series MEGT07 Conformity The disconnecting switch MEGT07 comply with the standard Lowvoltage switchgear and control gear VDE 06 Part 07, respectively IEC 9. Installation Terminations are rear side suitable only for horizontal plane. The circuit breaker can be mounted on the base without additional parts. A withdrawable version is not available. Power supply 0V: upper terminals / 0V: either on upper or lower terminals. The disconnecting switch must be connected in the DC network as shown in the diagrams below () (+) 0 V 0 V 0V Single pole breaking (2) Single pole breaking Single pole breaking for MEG 7/0 Two poles in series and 07/ Technical data 0 0 Series MEGT /0 07/ Rated insulation voltage Ui DC 0V Rated impulse withstand voltage Uimp 8kV Pollution degree Rated voltage Ue Up to DC 0V DC 0V (2) Ie Fixed Pollution degree IP00 Temperature For use in enclosures with interior C (A) temperatures of to ºC C (A) the relevant IP00 values can be applied C (A) basically. Connection cross sections are to be C (A) 2 8 rated to the rated current of the equipment. C (A) Rated breaking capacity Icn according to IEC 92 DC 7 (2) (ka) 0 0 Power supply to top DC 0V (ka) 5 Icu = Ics DC 0V (ka) 25 () Two pole breaking on request (2) Version for stationary railway application acc. to EN 22 and, only type MEGT for DC 7V.7

8 Order codes STANDARD RANGE P Circuit breaker pole current transformer, electronic trip unit type bse rms () handoperated mechanism type X2 auxiliary contacts 5 NO, 6 NC Series ME07S poles, up to A of breaker of current transformer I CT [A] ME67S ME67S ME67S MES ME007S ME257S ME7S ME07S ME27S ME7S Vertical terminals V/AC STANDARD RANGE P Series ME07S/S poles, up to A of breaker of current transformer I CT [A] ME67S ME67S ME67S MES ME007S ME257S ME7S ME07S ME27S ME7S Vertical terminals V/AC Circuit breaker pole current transformer, electronic trip unit type bse rms () handoperated mechanism type X2 auxiliary contacts 5 NO, 6 NC.8 () For other trip unit types please refer to table on page.

9 Order codes HIGH PERFORMANCE RANGE P Circuit breaker pole current transformer electronic trip unit type bse rms () handoperated mechanism type X2 auxiliary contacts 5 NO, 6 NC Series ME07H poles, up to A of breaker of current transformer I CT [A] ME67H ME67H ME67H MEH ME007H ME257H ME7H ME07H ME27H ME7H kg Vertical terminals V/AC kg Series ME07 HIGH PERFORMANCE RANGE P Series ME07H poles, up to A of breaker of current transformer I CT [A] ME67H ME67H ME67H MEH ME007H ME257H ME7H ME07H ME27H ME7H Vertical terminals V/AC Circuit breaker pole equiped with: current transformer electronic trip unit type bse rms () handoperated mechanism type X2 auxiliary contacts 5 NO, 6 NC HIGH PERFORMANCE RANGE P Series ME07H/S pole, up to A of breaker of current transformer I CT [A] ME67H ME67H ME67H MEH ME007H ME257H ME7H ME07H ME7H Heightened arc chute (extended breaking capacity) V/AC Circuit breaker pole current transformer electronic trip unit type bse rms () handoperated mechanism type X2 auxiliary contacts 5 NO, 6 NC () For other trip unit types please refer to table on page,..9

10 Order codes STANDARD RANGE P Disconnecting switch handoperated mechanism type X2 auxiliary contacts 5 NO, 6 NC (without current transformer and electronic trip unit) Disconnecting switches Series MET07S poles, up to A of breaker MET67S METS MET007S MET257S MET7S MET07S MET27S MET7S Vertical terminals V/AC STANDARD RANGE P Disconnecting switches Series MET07S/S poles, up to A of breaker MET67S METS MET007S MET257S MET7S MET07S MET27S MET7S Vertical terminals V/AC Disconnecting switch handoperated mechanism type X2 auxiliary contacts 5 NO, 6 NC (without current transformer and electronic trip unit).0

11 Order codes HIGH PERFORMANCE RANGE P Disconnecting switch handoperated mechanism type X2 auxiliary contacts 5 NO, 6 NC (without current transformer and electronic trip unit) Disconnecting switches Series MET07H poles, up to A of breaker MET67H METH MET007H MET257H MET7H MET07H MET27H MET7H Vertical terminals V/AC Series MET HIGH PERFORMANCE RANGE P Disconnecting switches Series MET07H poles, up to A of breaker MET67H METH MET007H MET257H MET7H MET07H MET27H MET7H Vertical terminals V/AC Disconnecting switch handoperated mechanism type X2 auxiliary contacts 5 NO, 6 NC (without current transformer and electronic trip unit).

12 Order codes HIGH PERFORMACE RANGE STANDARD RANGE Disconnecting switch handoperated mechanism type X2 auxiliary contacts 5 NO, 6 NC (without current transformer and electronic trip unit) P Disconnecting switches Series MET07H/S poles, up to A 000 V/AC of switch MET67H METH MET007H MET257H MET7H MET07H MET27H MET7H Heightened arc chute kg DC RANGE Disconnecting switch handoperated mechanism type X2 auxiliary contacts 5 NO, 6 NC (without external overcurrent release, shunt trip 2V AC) Disconnecting switches Series MEGT07 pole () up to A 0 0 of switch 2 00 MEGT257 MEGT07 MEGT7 MEGT7/0 Up to 0V kg Up to 0V Up to 0V kg Up to 0V V/DC () Multiple pole types for DC 0V on request..2

13 Accessories Electronic trip unit type bse...rms for AC bse x rms Auxiliary Voltage Aux. Switches Cat. No. P bse rms24d bse rms25a bse rms2a bse 4 rms24d 24V DC 25V AC 2V AC 24V DC 5NO+5NC 5NO+5NC 5NO+5NC 4NO+4NC bse rms24dxx bse rms25axx bse rms2axx bse4 rms24dxx Selection code for Cat. No. suffix bse... XX Current transformer 2A 0A A A 000A 2A 0A 00A 20A A pole bse x rms Series MET Settings bse and 4 Overload channel b Ib = x Ict Ib = x Ict Shortcircuit channel s Shortcircuit channel k Shortcircuit channel k Ict = 2 to 2A Is = x Ict Ik = x Ict Ik = 8 x Ict Ict = 0 to 20A Is = x Ict Ik = x Ict Ik = 0 x Ict Ict = A Is = x Ict Ik = x Ict Ik = 7 x Ict Ict = 2 A tg = 00 0ms Earth fault channel g Ig = x Ict Short time delay for shortcircuit channel s ts = 0ms.

14 Accessories Functions of the electronic trip units type bse rms bchannel adjustable Long time delay adjustable within 5... sec Contact for indication TRIPPED bse rms bse 4 rms schannel adjustable Time delay adjustable Contact for indication TRIPPED Contact for immediate indication of schannel threshold kchannel (ON/OFF) Setting fixed Contact for indication TRIPPED gchannel (Earth fault) (ONOFF) Time delay adjustable Contact for indication TRIPPED Indications bchannel with LED indication and contact ( NO) for indication TRIPPED s Channel with LED indication and contact ( NO) for indication TRIPPED k Channel with LED indication and contact ( NO) for indication TRIPPED g Channel with LED indication and contac (NO) for indication TRIPPED Antipumping device RESET button Auxiliary voltage 24 V DC ± 5% Test socket.4

15 DRIVES Order codes Operating mechanism for Series ME and MET x2 Manual operated mechanism with storage operation by manual ON/OFF button Standard xv Manual operated machnism with storage, closing coil fv All type fv with automatic control unit Motor operated mechanism with storage Separate command for charging and closing 42V, AC /Hz 0V, AC /Hz 2V, AC /Hz 2V, AC /Hz 2V, AC /Hz 24V, DC V, DC V, DC 0V, DC 25V, DC 2V, DC 42V, AC /Hz 0V, AC /Hz 2V, AC /Hz 2V, AC /Hz 2V, AC /Hz 24V, DC V, DC V, DC 0V, DC 25V, DC 2V, DC Accessories fv2 Automatic charging after circuit breaker is opened 42V, AC /Hz 0V, AC /Hz 2V, AC /Hz 2V, AC /Hz 2V, AC /Hz 24V, DC V, DC V, DC 0V, DC 25V, DC 2V, DC fv. Automatic charging after circuit breaker is closed, with manual fi rst charging 42V, AC /Hz 0V, AC /Hz 2V, AC /Hz 2V, AC /Hz 2V, AC /Hz 24V, DC V, DC V, DC 0V, DC 25V, DC 2V, DC fv.2 Automatic charging after circuit breaker is opened or closed, with automatic fi rst charging 42V, AC /Hz 0V, AC /Hz 2V, AC /Hz 2V, AC /Hz 2V, AC /Hz 24V, DC V, DC V, DC 0V, DC 25V, DC 2V, DC fv4 Automatic closing when spring is charged 42V, AC /Hz 0V, AC /Hz 2V, AC /Hz 2V, AC /Hz 2V, AC /Hz 24V, DC V, DC V, DC 0V, DC 25V, DC 2V, DC

16 Order codes Accessories for Series ME and MET AUXILIARY TRIPS Shunt trip type a Undervoltage release type r 42V, AC /Hz 0V, AC /Hz 2V, AC /Hz 2V, AC /Hz 2V, AC /Hz 24V, DC V, DC V, DC 0V, DC 25V, DC 2V, DC 42V, AC /Hz 0V, AC /Hz 2V, AC /Hz 2V, AC /Hz 2V, AC /Hz 24V, DC V, DC V, DC 0V, DC 25V, DC 2V, DC ACCESSORIES FOR AUXILIARY TRIPS Time delay unit type c For undervoltage trip (undervoltage trip r 2V DC required) Rated operating voltage: AC /Hz, 2...2V, 2V DC 784 INDICATION SWITCHES g Indication switch type m Spring energy system charged for hand operated mechanism. With motor operated mechanism and automatic control unit indication always supplied, not available with microswitch controlled mechanism Indication switch type m4 Breaker ready for closure. Indication: Breaker OFF, spring energy system charged,undervoltage trip if available energised for hand and motor operated mechanism, standard with microswitch controlled mechanism LOCING FACILITIES y y2 y y7 y8 y9 ON and OFF pushbutton locked key removable in both positions ON pushbutton locked key removable in both positions ON pushbutton locked key removable in both positions ON and OFF pushbutton locked key removable when locked ON pushbutton locked key removable when locked ON pushbutton locked key removable when locked On request On request y4 y5 y6 ON and OFF pushbutton locked ON pushbutton locked ON pushbutton locked On request Protection against unauthorized actuation of ON and OFF pushbutton 7859 ACCESSORIES Clear cover for trip unit type k For trip unit bse Door adjustment frame type ü Compensation of tolerances between door cutout and front cover Sealing kit type d Mounting kit to achieve IP54 in door cutout, for pumping handle and trip unit cover Door interlock type q Prevents opening of door when circuit breaker is closed (fi xed version only) Angular spacer type AW For rear mounting in combination with vertical termination (2 pieces required) Bowden wire interlock type g Mounting kit for mechanical interlock of 2 circuit breakers (fi xed version), supplementary provide electrical interlock Ceramic inserts For arc chutes to reduce clearance distances (only for range S and H 0V) s

17 Order codes Withdrawable technique Cradles for Series ME & MET, poles Cradle for circuit breakertype Cradle type Shortcircuit capacity ka Termination kg Conversion kit for circuit breaker ME67 to ME257 ME7 to ME P Cradle provided with personnel protection by positively activated shutter, positive mechanical indication of functional position of breaker. ME67 to 7: Integrated telescopic extension rails, padlocking facility against insertion of cranking handle, socket connectors = contacts for control circuit connection. In version v and k the terminals are accessable from the front. ME67 to 007 S ME67 to 257 H,S ME7 H, S ME07 H, S ME27 H, S ME7 H, S ME67 to 007 S ME67 to 257 H,S ME7 H, S ME07 H, S ME27 H, S ME7 H, S ME67 to 007 S ME67 to 257 H,S ME7 H, S ME07 H, S ME27 H, S ME7 H, S T0v T0v2 Tv Tv2 Tv Tv T0w T0w2 Tw Tw2 Tw Tw T0k T0k2 Tk Tk2 Tk Tk Upper and lower vertical Upper and lower vertical Upper and lower vertical Upper and lower vertical Upper and lower vertical Upper and lower vertical Upper and lower horizontal Upper and lower horizontal Upper and lower horizontal Upper and lower horizontal Upper and lower horizontal Upper and lower horizontal Upper horizontal, lower vertical Upper horizontal, lower vertical Upper horizontal, lower vertical Upper horizontal, lower vertical Upper horizontal, lower vertical Upper horizontal, lower vertical Accessories POSITION INDICATION SWITCH Withdrawable technique Accessories for cradle Alternatively for indication of disconnected, test and connected position s 0... switch CO 2 switches 2 CO switches CO 4 switches 4 CO 5 switches 5 CO 6 switches 6 CO DOOR INTERLOCS Prevents door opening when circuit breaker is in ON and TEST position s 0... lly Door (hinged left side) defeatable lln Door (hinged left side) not defeatable lry Door (hinged right side) defeatable lrn Door (hinged right side) not defeatable LOCING FACILITY TYPE WL Cradle provided with cylindrical lock against insertion of cranking handle s LOCING FACILITY TYPE WE Mechanical interlock against insertion of cranking handle when circuit breaker is in ON position s BOWDEN WIRE INTERLOC TYPE G2 Withdrawable technique Accessories for circuit breaker Mounting kit for mechanical interlock of 2 circuit breakers Supplementary provide an electrical interlock

18 Order codes Replacement parts Suitable for circuit breaker kg Sets per pole Contacts Set of main contacts () Set of arcing contacts () applicable up to 690V AC and 7 V DC Set of arcing contacts () applicable up to 000V AC 0V/0V DC ME67 to 257 H, S ME7 to 27 H, S ME27 H, S ME7 H, S ME67 to257 H, S ME7 to 27 H, S ME7 H, S ME67 to ME257/H, MEG257 ME7 to ME07H, MEG07 ME7H, MEG7 Suitable for circuit breaker kg Please refer to spare part catalogue Pieces per pole Arc chutes Arc chute without ceramic inserts, applicable up to 0V AC ME67 to 257 H, S ME7 to 07 H, S ME27 H, S ME7 H, S Arc chute with ceramic inserts, applicable up to 690V AC ME67 to 257 H, S ME7 to 07 H, S ME27 H, S ME7 H, S Arc chute adaptor applicable up to 000V AC, 0V/0V DC ME67 to ME257H, MEG257 ME7 to ME07H, MEG07 ME7H, MEG7 ME07S, MEG07 MEG07 MEG7 Please refer to spare part catalogue Arc chute heightend applicable up to 000V AC, 0V/0V DC ME67 to ME257H, MEG257 ME7 to ME07H, MEG07 ME7H, MEG7 Please refer to spare part catalogue 2 () Set consists all fi tting parts, e.g. fi xed and movable contacts, contact springs and screws.8

Technical catalogue. Emax Low voltage air circuit-breakers. Hotline:

Technical catalogue. Emax Low voltage air circuit-breakers. Hotline: Technical catalogue Emax Low voltage air circuit-breakers www.alobitanbd.com Hotline: 01711548558 PAGE : 02 The new Emax have received innumerable international certifications and approval by the major