The Siemens SENTRON 3VA2010-5KP32-0CA0 is a 3-pole molded case circuit breaker rated for 100 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed in a warm panel. It carries a 187 kA interrupting capacity at 240 V, dropping to 121 kA at 415 V and 440 V, and 75.6 kA at 500 V. At 690 V the rating is 3 kA, so this breaker is sized for low-voltage distribution up to 600 V class, not 690 V main feeds.
Key ratings and what they mean for fit
The 100 A continuous rating is flat from 40 °C to 70 °C — that means the breaker holds its full ampacity even when mounted in a crowded enclosure with other heat sources. The 800 V rated insulation voltage gives headroom for 480 V and 600 V systems without voltage derating. The undervoltage release trips the breaker when control voltage drops, so it can be wired into an E-stop string or a loss-of-mains protection scheme. Communication function allows integration with a BMS or energy management system via optional modules — useful for remote trip indication or load shedding.
Integration notes
Mounts on a DIN rail or panel-mount base. The 86 mm depth, 105 mm width, and 181 mm height fit standard 3-pole MCCB footprints — verify cutout dimensions against the existing panel layout. The undervoltage release coil draws from the control circuit; confirm polarity and voltage rating before wiring. No ground-fault monitoring is built in; if GF protection is needed, pair with an external module or specify a 3VA2 variant.