Siemens 3VL4140-2KN30-0AB1 VL400 UL Circuit Breaker

The Siemens 3VL4140-2KN30-0AB1 is a VL400 UL circuit breaker, specifically a Type JG (cat no. HJX3B400) molded case circuit breaker with a non-interchangeable frame. It features UL 489 approval for high breaking capacity, with a 3-pole configuration and a NEMA rating of 65kA at 480V. This breaker is equipped with an Electronic Trip Unit (ETU) of the TM type, offering LI (Long-time and Instantaneous) protection. It has a temperature compensation of TA=40°C and a rated current (In) of up to 400A. The short-circuit protection is adjustable from 2000A to 4000A (In), with a fixed instantaneous trip setting (II) of 4000A, and an adjustable overload setting (IR) of 400A. This unit is designed for line protection and does not include connection accessories but comes with a mounting kit for 2 auxiliary switches (1 NO + 1 NC). It does not include an auxiliary release.

This circuit breaker is suitable for various industrial applications, including motor control, power distribution, and facility protection where high breaking capacity and reliable overcurrent protection are essential. Its NEMA rating and UL 489 compliance make it ideal for use in North American installations. Industries such as manufacturing, heavy machinery, and infrastructure projects can benefit from the robust performance and safety features offered by this Siemens breaker.

Source your Siemens 3VL4140-2KN30-0AB1 circuit breaker from Stanlo Automation, a veteran-owned business specializing in surplus industrial parts. We offer competitive pricing and a commitment to quality, ensuring you get reliable components for your automation needs. Trust Stanlo Automation for your surplus electrical and automation equipment.