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.
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.
Dimensions are 70 mm deep, 76.2 mm wide, 130 mm tall — a 3-pole MCCB footprint that fits standard distribution panel mounting.