What this MCCB is and what it protects
The Siemens SENTRON 3VA2116-5HL32-0JA0 is a 3-pole molded case circuit breaker (MCCB) rated for a continuous current of 160 A across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. Its breaking capacity reaches 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V — covering high-fault utility feeds and transformer secondaries where available fault current is substantial. Designed for line protection (cable/feeder protection), this MCCB includes a shunt trip release (STL) for remote tripping via a control signal — useful in emergency-stop or process-interlock circuits.
Panel fit and integration
Dimensions are 105 mm wide, 181 mm high, and 86 mm deep — a standard 3-pole MCCB footprint that fits most distribution panelboards and switchgear cubicles without special adapters. Rated insulation voltage is 800 V, providing margin to ground in common systems. Maximum power loss is 25.5 W — account for this thermal dissipation in the enclosure sizing, especially when grouping multiple breakers.