What this MCCB delivers
The Siemens SENTRON 3VM1112-4ED22-0AA0 is a 2-pole molded case circuit breaker rated 125 A continuous at 40 °C, with a TM210 thermal-magnetic release. It interrupts 121 kA at 240 V AC and 76 kA at 415 V AC — enough headroom for high-fault panels where a standard MCB would weld shut. The 70 mm depth and 50.8 mm width keep it compact for DIN-rail or panel-mount layouts, and the IP40 front means it's suited for enclosed distribution boards where dust ingress is minimal.
Integration notes
At 70 mm deep and 50.8 mm wide, this MCCB fits standard 2-pole DIN-rail spacing. The TM210 release is fixed — no adjustable thermal or magnetic trip — so size it to the load's locked-rotor and cable rating. Rated insulation voltage is 500 V, and the maximum operating voltage is 415 V AC or 250 V DC. Operating temperature range is -25 °C to 70 °C; above 55 °C the continuous current derates to 122 A, and at 70 °C to 114 A.