The Siemens 3VA1116-6EE32-0AB0 is a SENTRON molded case circuit breaker rated 160 A continuous at 40 °C, with a TM220 thermal-magnetic release and 3-pole construction. Its interrupting capacity reaches 220 kA at 240 V, 154 kA at 415 V, and 75.6 kA at 440 V — figures that cover most industrial service-entrance and feeder applications where high fault current is expected.
Thermal-magnetic curve and derating
The TM220 release is a fixed thermal-magnetic overcurrent trip. At 40 °C the breaker carries 160 A; at 55 °C it derates to 158 A, and at 70 °C to 150 A (–). Max power loss is 38 W — a figure to account for in enclosure heat calculations.
