The Siemens SENTRON 3VA1116-5EE46-0AA0 is a 4-pole molded case circuit breaker rated 160 A at 40 °C, built for line protection in distribution panels where fault currents can reach 187 kA at 240 V. The TM220 thermal-magnetic release provides fixed overload and short-circuit protection; no voltage-trip or ground-fault module on this variant, so keep those external if the application requires them.
This breaker's interrupting rating drops as system voltage rises: 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at both 500 V and 690 V.
Current derating with ambient temperature
The 160 A rating holds flat from 40 °C to 50 °C, then begins to taper: 158 A at 55 °C, 155 A at 60 °C, 153 A at 65 °C, and 150 A at 70 °C. Maximum power loss is 38 W, which factors into the enclosure ventilation calculation.
The breaker measures 101.6 mm wide, 130 mm high, and 70 mm deep — a standard 4-pole MCCB footprint that fits most DIN-rail or panel-mount enclosures without re-drilling. No trip indicator or undervoltage release on this order code, so fault diagnostics rely on external indication.