125 A, 4-pole MCCB with TM240 release
The Siemens SENTRON 3VA1112-5GF46-0AA0 is a 4-pole molded case circuit breaker rated 125 A continuous, designed for line protection in distribution panels. The TM240 thermal-magnetic release provides fixed overload and short-circuit protection, with no undervoltage release or trip indicator fitted on this variant. Breaking capacity is 187 kA at 240 V AC, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at both 500 V and 690 V — figures that give solid selectivity headroom in high-fault-current panels. Rated insulation voltage is 800 V. Current rating holds at 125 A up to 50 °C ambient; above that it derates to 122 A at 55 °C, 120 A at 60 °C, 117 A at 65 °C, and 114 A at 70 °C. Maximum power loss is 28.1 W. Operating range is -25 °C to 70 °C; storage range -40 °C to 80 °C.
Panel fit and mounting
Dimensions are 101.6 mm wide, 130 mm high, 70 mm deep — a 4-pole MCCB that fits standard SENTRON 3VA panel cutouts and busbar systems. Front protection is IP40; the body is designed for screw-mounting in enclosed switchboards. No communication function or ground-fault monitoring on this order code — it is a straight thermal-magnetic breaker for line protection, not a metering or communicating device.