Siemens 3VL250 3-Pole UL 489 Circuit Breaker, 175A

The Siemens 3VL3517-2KN30-0AA0 is a 3-pole molded case circuit breaker from the VL250 series, designed for high breaking capacity applications. It is UL 489 listed with a NEMA rating of 65kA at 480V and 18kA at 600/347V. This breaker features an electronic trip unit (TM, LI) with a thermal-magnetic setting and an adjustable instantaneous trip from 1000-2000A, with a fixed rated current (In) of 175A. It operates at a temperature of 40°C and is intended for line protection without auxiliary releases or switches, suitable for replacement purposes.

This circuit breaker is ideal for use in industrial settings requiring robust overcurrent protection, such as motor control centers, power distribution panels, and heavy machinery. Its compliance with UL 489 standards makes it suitable for applications in North America where safety and reliability are paramount. Industries benefiting from this component include manufacturing, processing plants, and infrastructure projects.

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