Motor protection MCCB with phase failure detection and shunt trip
Breaking capacity is substantial: 187 kA at 240 V AC, 121 kA at 415 V AC and 440 V AC, tapering to 75.6 kA at 500 V AC and 5.2 kA at 690 V AC. That puts it in the high-interrupting category for industrial distribution — suitable for installations with high fault current potential, such as large motor control centers or transformer-fed switchboards. The basic switch variant is 3VA2220-5MN32-0AA0, so the -0JC0 suffix adds the shunt trip and auxiliary switch configuration.
The 105 mm width is typical for a 200 A frame in the SENTRON range, so panel cutouts and busbar spacing designed for other 3VA2 breakers of similar rating will accept this unit without modification.
Coordination and selectivity note
The motor protection design means the thermal-magnetic or electronic trip curve is shaped for motor starting inrush — the minimum trip time is 4 s, maximum 15 s, which accommodates typical NEMA Design B or IEC motor start profiles. Phase failure detection adds an extra layer of protection against single-phasing, which is a common cause of motor winding failure.