ABB Reversing contactor 4kW 1Ö

Area: B Range
Series: B6
Number of Poles: 3
Coil Voltage: 240 VAC
Rated Contact Current: 20 A
Rated Contact Voltage: 690 VAC
Contact Configuration: 3 Normally Open
Number of Auxiliary Contacts: 1
Power: 4 kW
Connection Type: Screw
Length: 57.5 mm
Maximum Operating Temperature: +55 °C

VB6/VB7 - Compact Reversing Contactors. The mechanical interlock between the two contactors prevents one contactor from being activated while the other is still engaged and vice versa. If reversing contactors are switched too quickly, there is a risk of a phase short circuit. This occurs when the arc of the disengaging contactor has not yet extinguished, and the contacts of the engaging contactor are already closed. To avoid this risk, both contactor coils must be de-energized for at least 50 ms during the switching process and additionally electrically interlocked against each other.