The 140U-J6D3-D15-A circuit breaker is an Allen-Bradley circuit breaker. It comes with an IEC rating and it is a molded case circuit breaker. It operates with a current rating of 250 Amps and can interrupt trips at ratings of 70/65 kA. The breaker comes with a fixed thermal and adjustable magnetic trip. The magnetic trip can be adjusted by the operators. The circuit breaker is 3.344 inches in length, 4 inches in width, and 7 inches in height. The voltage rating of the breaker is 400 to 480 Volts AC. This molded case circuit breaker comes with three poles. It can be used with both single-phase and three-phase applications. The 140U-J6D3-D15-A circuit breaker comes in a Frame J enclosure and the outer layer has a conformal coating. The breaker can be mounted using a bolt-on mounting base. The temperature of the installation environment should match the specified temperature rating. The normal operating temperature lies between -25 and 60 degrees Celsius. Without getting derated, the breaker can be used at up to an altitude of 2000 meters above sea level. A shunt trip can be used for remote tripping.

The 140U-J6D3-D15-A circuit breaker is certified with different environmental and industrial standards and it is approved for global use. The breaker comes with auxiliary shields, alarm contacts, undervoltage releases, and other components. The molded case circuit breaker can be used to protect the circuit against overloads, short circuits, and ground fault conditions. The breaker is widely used with industrial panelboards and switchboards. The 140U-J6D3-D15-A circuit breaker has a power on/off lever on the front panel along with a push-to-trip button for tripping the breaker manually and testing the breaker.