The Siemens 3VA1116-6EF32-0JA0 is a SENTRON molded case circuit breaker (MCCB) rated for 160 A continuous at 40 °C, with a 3-pole configuration and a TM240 thermal-magnetic release for line protection. Its interrupting capacity hits 220 kA at 240 V, tapering to 154 kA at 415 V and 75.6 kA at 440 V — numbers that matter when you're coordinating with upstream gear and need to know it'll clear a fault without cascading.
Breaking capacity and thermal derating
The 220 kA at 240 V is the headline number, but the real-world fit depends on the system voltage: at 415 V it's 154 kA, at 500 V it drops to 17 kA. That's a steep knee — if your panel runs 480 V or higher, verify the available fault current against the 17 kA rating at 500 V. Thermal derating is mild: the 160 A holds flat through 50 °C, then drops to 158 A at 55 °C and 150 A at 70 °C, so in a hot enclosure you lose about 6 % at the top end.
Panel fit and integration
Dimensions are 70 mm deep, 76.2 mm wide, 130 mm tall — a 3-pole MCCB footprint that fits standard distribution panel mounting. Rated insulation voltage is 800 V, and the maximum power loss at rated current is 38 W, so factor that into enclosure thermal calculations. The TM240 release is thermal-magnetic; there's no shunt trip or undervoltage release on this variant, so if you need remote tripping, you'll add an external shunt trip (STL) accessory.