The Siemens SENTRON 3VA2116-5KQ36-0AA0 is a 3-pole molded case circuit breaker rated for 160 A continuous current across the full ambient temperature range from 40 °C to 70 °C — no derating needed up to that ceiling. It carries an ETU860 electronic overcurrent release, which gives you adjustable long-time, short-time, instantaneous, and ground-fault protection curves. The interrupting ratings are the headline: 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.
Depth of 86 mm means it clears most standard gland plates and backpan covers without a spacer.
Protection and release features
This is a line-protection breaker — no undervoltage release fitted, no voltage-trip module. It does include a communication function and a ground-fault monitoring version configured for summation current formation on the L-conductor. The ETU860 release supports adjustable settings for LSIG (long-time, short-time, instantaneous, ground) protection. Maximum power loss is 25.5 W — that's the heat you need to vent inside the enclosure at full load.
Environmental range
The 160 A rating holds flat across the entire operating range — no derating curve to track.