Siemens Circuit Breakers

SENTRON and SIRIUS protection devices guard feeders, motors and control circuits against overload and short circuit. Frame size, trip class and breaking capacity are coded into the part number, so quote with the complete code from the device. Every unit carries a 12-month warranty. Send us your part numbers — competitive quotation within 12 hours.

Can’t find your part number?

We source the full Siemens range, including discontinued and unlisted models. Send us the part number — competitive quotation within 12 hours.