The Siemens SENTRON 3VA2110-5JP32-0DH0 is a 3-pole molded case circuit breaker (MCCB) rated for 100 A continuous current across the full operating range from -25 °C to 70 °C — no derating needed up to the top end. It is designed specifically for line protection (cable and busbar feeder protection), not motor or generator duty. The interrupting ratings climb with system voltage: 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V. The trip unit adjustable range spans 150 A to 1 200 A, so the 100 A frame supports a wide band of protection settings. A trip indicator is present on the front face for quick visual identification of a tripped breaker on a crowded panel. That saves adding a separate auxiliary contact block in many coordination schemes.
Selectivity and coordination notes
Because this is a line-protection MCCB with an adjustable trip unit (150–1 200 A range), it can be coordinated downstream of a larger SENTRON 3VA breaker or upstream of a 3VA1 frame. The 100 A continuous rating and 187 kA SCCR at 240 V give headroom for a high-fault panelboard. For a site engineer building a selective coordination study, the trip curve data (I²t and instantaneous settings) is available in the Siemens selectivity manual — not reproduced here, but the part is designed for full selectivity with downstream 3VA1 breakers up to the interrupting rating. The undervoltage release (UVR) also allows remote tripping from a safety PLC or E-stop circuit, which is useful for emergency-off zones.