Industrial Automation Co. is NOT an Authorized Rockwell Distributor - we have our own unique inventory and sourcing relationships. Review our Reseller notice, here.

The Allen-Bradley 140G-KTF3-D40 trip unit from the 140G molded case circuit breaker series offers efficient and cost-effective protection for branch and main circuit applications with its adjustable thermal-magnetic trip ratings. Designed for the K Frame series, it accommodates circuits up to 600 Volts AC with a 400 Amp rating, while its thermal and magnetic trip settings can be adjusted from 280 to 400 Amps and 2000 to 4000 Amps, respectively. Built with an electromagnet and bimetallic thermal trip elements, it efficiently manages overcurrent and temperature deviations, boasting a mechanical lifespan of 20,000 operations and maintaining a rated withstand voltage of 8.0 kV and insulation voltage of 800 Volts, with international CCC, CSA, CE, and UL certifications ensuring compliance.