Siemens 3VA1116-4EF36-0KC0 — SENTRON MCCB, 160 A, 3-Pole, High Breaking Capacity
The Siemens 3VA1116-4EF36-0KC0 is a SENTRON molded case circuit breaker (MCCB) designed for line protection in industrial distribution panels. It carries a continuous current rating of 160 A at 40 °C, with minimal thermal derating up to 70 °C (150 A at 70 °C). The 3-pole frame delivers a breaking capacity of 121 kA at 240 V AC, stepping down to 75.6 kA at 415 V and 52.5 kA at 440 V — figures that put it in the high-breaking-capacity class for 160 A MCCBs. Rated insulation voltage is 800 V, giving headroom for 480 V and 600 V class systems. The breaker ships with a factory-installed shunt trip (STL) and two auxiliary switches (HQ), so it arrives ready for remote tripping and status feedback without a separate accessory order. The basic switch variant is order code 3VA11164EF360AA0, confirming this is a configured assembly, not a bare frame.
Breaking Capacity and Selectivity Planning
The 121 kA at 240 V is the headline figure, but the more relevant number for a 400 V class panel is the 75.6 kA at 415 V — that is the SCCR the downstream equipment sees in a typical European or Asian 400 V distribution. At 690 V the breaker still holds 11.9 kA, enough for most 690 V motor circuits. The 160 A frame with these interrupting ratings means it can serve as a main or feeder breaker in high-fault panels without cascading upstream. Maximum power loss is 38 W, which matters for enclosure thermal calculations when grouping multiple breakers in a panel. The 70 mm depth and 76.2 mm width match the standard SENTRON 3VA mounting footprint, so panel cutouts and busbar layouts carry across the family.
Mounting and Integration
Dimensions are 130 mm height, 76.2 mm width, 70 mm depth — a compact 3-pole MCCB that fits standard SENTRON panel mounting. The 3VA series uses a common busbar connection pattern, so a panel designed for a 3VA1110 or 3VA1112 frame accepts this 160 A unit without rewiring the bus. The shunt trip (STL) and two auxiliary switches (HQ) are wired to the breaker's internal terminals; verify the STL coil voltage matches the control circuit before commissioning.