The SENTRON 3VA1163-5EF32-0DA0 is a 3-pole molded case circuit breaker rated for line protection, carrying a full-load current of 63 A at 40 °C ambient — no derating needed at that temperature, and only a mild drop to 58 A at 70 °C, which matters when it's mounted in a warm panel near other heat sources.
Selectivity and coordination
The 187 kA SCCR at 240 V puts this in the high-interrupting class for a 63 A frame. In a panel where the upstream transformer or main breaker can deliver that fault current, this MCCB holds the line without cascading — the downstream breakers can be lower-rated because this one clears the big faults. At 415 V the 121 kA rating still covers most industrial distribution scenarios. The TM240 overcurrent release is a thermal-magnetic type, so it provides both overload protection (thermal) and short-circuit protection (magnetic) in one unit — no separate relay needed.
Dimensions are 130 mm height, 76.2 mm width, 70 mm depth — a 3-pole MCCB frame that fits standard Siemens SENTRON mounting bases and busbar systems. That covers most indoor industrial panel conditions, including unheated warehouses and enclosures near process heat.
Maximum power loss is 19.8 W at rated load. That's the heat the breaker dumps into the enclosure — relevant for calculating internal temperature rise in a sealed panel. At 63 A continuous, 19.8 W is moderate for a 3-pole MCCB; no forced cooling required in a properly sized cabinet.