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ABB MOTOR PROTECTION AND CONTROL 4/93

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MCR 4-pole mini contactor relays

Technical data

General technical data
Contactor relay types AC operated MCRA
DC operated MCRC
Rated insulation voltage Ui
acc. to IEC/EN 60947-5-1 750 V
acc. to UL/CSA 60947-5-1 600 V
Rated impulse withstand voltage Uimp 6 kV 04
Electromagnetic compatibility
Ambient air temperature close to contactor relay Operation -40 ... +55 °C
in free air
Storage -55 ... +80 °C
Climatic withstand Acc. to IEC / EN 60947-1 Annex. Q
Maximum operating altitude (without derating) 3000 m
Mechanical durability 107 operating cycles
Resistance to shock Half-sine
acc. to IEC/EN 60068-2-27 25 g / 11ms
acc. to IEC/EN 60947-1 Annex. Q Category E
Resistance to vibrations Sinusoidal
acc. to IEC/EN 60068-2-6 5 g / 3 ... 150 Hz
acc. to IEC/EN 60947-1 Annex. Q Category E

Magnet system characteristics for MCRA contactor relays
Contactor relay types AC operated MCRA
Coil operating limits AC supply 0.85 ... 1.1 x Uc
acc. to IEC/EN 60947-5-1
AC control voltage
Rated control circuit voltage Uc See ordering tables
Coil consumption Average pull-in value (50 Hz) 26 VA
Average pull-in value (60 Hz) 32 VA
Average holding value (50 Hz) 5.3 VA
Average holding value (60 Hz) 4.5 VA
Drop-out voltage in % of Uc min 20 ... 75 %

Magnet system characteristics for MCRC contactor relays
Contactor relay types DC operated MCRC
Coil operating limits acc. to IEC/EN 60947-5-1 DC supply 0.85 ... 1.1 x Uc
DC control voltage
Rated control circuit voltage Uc See ordering tables
Coil consumption (1) Average pull-in value 3 W
Average holding value 3 W
Drop-out voltage in % of Uc min 10 ... 75 %
(1) Low consumption mini contactor relays: see coil consumption on ordering details pages.

Magnet system characteristics for MCRC contactor relays with extended operating limits coils
Contactor types DC operated MCRC
Coil operating limits acc. to IEC/EN 60947-5-1 DC supply 0.85 ... 1.1 x Uc
DC control voltage
Rated control circuit voltage Uc See ordering tables
Coil consumption Average pull-in value 4 W
Average holding value 4 W
Drop-out voltage in % of Uc min 10 ... 65 %