The Siemens SENTRON 3VA1116-5EF32-0DA0 is a 3-pole molded case circuit breaker (MCCB) rated for 160 A continuous current, with a TM240 thermal-magnetic overcurrent release. It is configured for line protection — no phase-failure detection, no communication module, no auxiliary contacts. The breaker carries an undervoltage release (UVR) as the integrated auxiliary trip, part number 3VA9608-0BB25.
Breaking capacity and selectivity
The interrupting ratings span the common industrial voltages: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 690 V. At 415 V, that 121 kA gives substantial headroom for high-fault installations — useful when coordinating downstream with a transformer or a large motor starter where the prospective short-circuit current is above 50 kA. The 690 V figure (17 kA) is the one to check if the breaker lands in a 690 V mining or marine distribution board.
Current derating across temperature
Rated continuous current holds at 160 A from 40 °C through 50 °C, then begins a gradual derating: 153.6 A at 55 °C, 150.4 A at 60 °C, 147.2 A at 65 °C, and 144 A at 70 °C. If the panel ambient runs at 55 °C or above, the effective ampacity drops — account for that when sizing the load cable and the upstream feeder. The rated insulation voltage is 800 V.
Mounting and environment
The breaker measures 76.2 mm wide, 130 mm tall, and 70 mm deep — a standard 3-pole MCCB footprint for DIN-rail or screw-mount panel integration. Front protection is IP40, meaning tools and fingers are kept out but the interior is not sealed against dust ingress. Operating temperature range is -25 °C to 70 °C; storage range extends from -40 °C to 80 °C. Mechanical endurance is rated at 15,000 cycles.