Rockwell Automation/Allen-Bradley manufactures the 140UE-L5X3 IEC Molded Case Circuit Breaker as part of the 140U MCB product line. This circuit breaker has Frame L with a rating of 630 Amps with a breaking capacity or interrupting rating of 50 to 59 kiloamps at 400 Volts AC. It has a frame only protection with three poles. Some of the general features of the 140UE-L5X3 Circuit Breaker are factory or field-installed accessories, flex-cable operating mechanisms, rotary and variable-depth operating mechanisms. It has a thermal-magnetic current rating of 15 to 800 Amps, a molded case switch current rating of 160 to 1250 Amps, and an electronic current rating of 70 to 1250 Amps. The 140U MCB series of circuit breakers are approved for compliance with the KEMA-KEUR, IEC 60947-2, and CE standards. These circuit breakers can either be assembled from the frame and trip unit or they can be purchased as a ready-made unit. Also, the terminal box lugs and the mounting hardware are provided as standard features for the 140UE-L5X3 Circuit Breaker and the entire series.

Some of the notable accessories of the IEC molded case circuit breakers like the 140UE-L5X3 Circuit Breaker include a standard terminal lug, terminal covers, a pad-lockable hasp, phase barriers, a plug-in base, a slide bar interlock, a flex-cable operating mechanism, a variable depth rotary operating mechanism, and a direct coupler rotary operating mechanism. The internal accessories of these circuit breakers are auxiliary shields, alarm (trip) contacts, a shunt trip, and an auxiliary and alarm combination. The 140UE-L5X3 circuit breaker has dimensions of 258 millimeters (height), 140/184 millimeters (width), and 104 millimeters (depth). It has a current range of 100 to 800 Amps.