Siemens 3VA2125-7KP36-0AA0

The 3VA21 circuit breaker is designed for low voltage applications and adheres to IEC standards. It features a very high breaking capacity, classified as Class C, with a rated current of 25A and an impressive breaking capacity of 110kA at 415V. This device is equipped with an ETU850 electronic trip unit that includes an LCD display for metering functions.

With dimensions of 4.1 x 7.1 x 4.2 inches, this circuit breaker is compact yet powerful. It operates at a rated voltage of up to 690V and incorporates a frame clamp connection on the front side. The overload protection settings range from 10A to 25A, while the short-circuit protection can be adjusted between 0.6 to 10 times the rated current. This circuit breaker also allows for optional connection via an external current transformer for conductor protection, which can extend up to 160% of the rated current.

Furthermore, the device is designed for fixed built-in installation and is suitable for DIN rail mounting. It does not include integrated earth fault protection or under voltage release features, but it does come complete with a protection unit.