140M-K5F-C80

The 140M-K5F-C80 circuit breaker is a 3-pole motor protection circuit breaker manufactured by Allen-Bradley. It provides a means for disconnecting the motor branch circuit, branch circuit, and short circuit, manual switching, and for overload thermal protection. For the thermal release mode, the adjustable current range is from 63 to 80 Amps. For the magnetic release mode, the operating current range is from 480 to 960 Amps. At 400 Volts AC, the 140M-K5F-C80 circuit breaker is compatible with 3-phase motors rated for 37 to 45 kilowatts. At 400 to 415 Volts AC, the ultimate short-circuit breaking capacity for the 140M-K5F-C80 circuit breaker is 65 kiloamps, and the rated service short-circuit breaking capacity is 33 kiloamps. The rated insulation voltage for the 140M-K5F-C80 circuit breaker is 690 Volts AC. The rated line frequency range is 40 to 60 Hertz.

The rated mechanical life span for the 140M-K5F-C80 circuit breaker is 15,000 operations and the electrical lifespan is 10,000 operations. The switching frequency is a maximum of 20 operations per hour. The ambient temperature range is from -5 to 40 degrees Celsius and the storage temperature range is from -20 to 60 degrees Celsius. The protection class for the circuit breaker is IP 00 or IP 20 with a terminal cover. The shock rating is 5 g for 15 milliseconds. The rated frequency range for resistance to vibration is 13 to 150 Hertz. The total power loss during circuit breaker operation at the rated load is 45 Watts. The 140M-K5F-C80 circuit breaker is approved by the CE standards and it conforms to the following standards: the IEC947-1/2/4/5 and EN 60947 standards. The recommended wire types for the terminations and their respective sizes are 70 mm2 for fine stranded wire and 95 mm2 for coarse stranded wire. The weight of the breaker is 2.1 kilograms.