The Siemens SENTRON 3VA1050-3ED36-0AH0 is a 3-pole molded case circuit breaker (MCCB) rated for 50 A continuous at 40 °C, with a TM210 thermal-magnetic overcurrent release.
The interrupting rating drops as system voltage rises: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 7.5 kA at both 500 V and 690 V.
The breaker holds 50 A from 40 °C up to 50 °C, then derates linearly: 49 A at 55 °C, 48 A at 60 °C, 46 A at 65 °C, and 45 A at 70 °C.
Mounting and auxiliary switch configuration
Dimensions are 130 mm height, 76.2 mm width, 70 mm depth — a standard 3-pole MCCB footprint for panel mounting on a mounting plate or DIN rail adapter. No undervoltage release or shunt trip is built in; those are separate accessories.
