The Siemens SENTRON 3VA1116-4EF36-0HA0 is a 3-pole molded case circuit breaker (MCCB) rated for 160 A continuous at 40 °C, with a TM240 thermal-magnetic overcurrent release and an integrated shunt trip (STL) for remote tripping. It's designed for line protection in distribution panels, switchgear, and motor control centers where a high interrupting rating is needed — 121 kA at 240 V AC, 75.6 kA at 415 V, and still 11.9 kA at 690 V.
Breaking capacity and thermal performance
The 121 kA SCCR at 240 V puts this in the high-fault tier — suitable for service-entrance or main-breaker positions where available fault current is high. At 415 V it still holds 75.6 kA, which covers most industrial distribution bus ratings. The 160 A rating holds flat from 40 °C to 50 °C, then derates to 150 A at 70 °C — useful if the breaker sits in a warm enclosure near transformers or drives.
Form factor and panel fit
Dimensions are 70 mm deep, 76.2 mm wide, and 130 mm tall — a compact 3-pole MCCB footprint that mounts on a DIN rail or panel plate. The shunt trip (STL) auxiliary release is factory-installed, so no field retrofit is needed for remote trip capability. Insulation voltage is rated 800 V, and maximum power loss is 38 W at full load — factor that into enclosure thermal calculations.
Operating environment
Rated for operation from -25 °C to 70 °C, with storage from -40 °C to 80 °C. No communication function, no ground-fault monitoring, and no undervoltage release on this variant — it's a straightforward thermal-magnetic breaker with shunt trip for basic overcurrent and remote open commands.