The Siemens 3VA1116-6EF36-0AH0 is a 3-pole SENTRON molded case circuit breaker rated for 160 A continuous current (Iu) and carrying a TM240 thermal-magnetic release — meaning the thermal trip element is fixed at 160 A, not adjustable up to 240 A, so it protects a 160 A feeder or main without field tweaking. Its interrupting capacity hits 220 kA at 240 V AC, 154 kA at 415 V, and 75.6 kA at 440 V — figures that put it in the high-fault category for industrial mains and large sub-distribution boards where available fault current exceeds 100 kA. At 690 V it still clears 17 kA, so it handles step-up transformer secondaries or 690 V drives.
Thermal derating across the panel ambient range
At 55 °C it steps to 153.6 A, at 60 °C to 150.4 A, at 65 °C to 147.2 A, and at 70 °C to 144 A. That last figure is the maximum operating ambient the breaker itself can tolerate; storage range is wider at -40 °C to 80 °C. The breaker occupies 76.2 mm width (roughly 3 inches of DIN or mounting-plate space) and 70 mm depth, so it fits standard 160 A frame cutouts in most switchboard layouts.
The 3VA1116-6EF36-0AH0 is in its current lifecycle stage — meaning Siemens still lists it as an active catalog number with no announced phase-out or last-time-buy. That makes it a safe BOM line for new panel designs and a reliable spare for existing installations.