The 140M-C2E-B40 is a Motor Protection Circuit Breaker that is manufactured and branded by Allen-Bradley and Rockwell Automation. This 140M-C2E-B40 Motor Protection Circuit Breaker has a 32 Ampere Frame/Rating, a normal breaking capacity, and an adjusted thermal/fixed mag protection type. The 140M-C2E-B40 has a current range of 4.0 and a rated insulation voltage of 690 Volts per IEC, SEV, VDE0660 and 600 Volts per UL and CSA. Rated impulse withstand voltage specifications for the 140M-C2E-B40 include a pollution degree of 3, a main circuits/overvoltage category of 6kV/III, and an auxiliary circuits/overvoltage category of 6kV/III; rated frequency is 50/60 Hertz. The 140M-C2E-B40 has a circuit breaker utilization category ‘A’ and a motor starter utilization category ‘AC-3.’ It has a mechanical lifespan of 100,000 operations, an electrical lifespan of 100,000 operations, and a maximum switching frequency of 25 operations per hour.

Additional specifications for the 140M-C2E-B40 include an ambient storage temperature that ranges between -40 and 80 degrees Celsius and an ambient operating temperature that ranges between -25 and 60 degrees Celsius. Climate resistance specifications include a moisture change climate of 23 degrees Celsius/83% relative humidity and 40 degrees Celsius/92% relative humidity, 56 cycles, per IEC 600068-2-30. Dry heat is 100 degrees Celsius, relative humidity <50%, 7 days, per IEC 60086-2-2. This 140M-C2E-B40 can operate at altitudes up to 2000 meters. It has a resistance to shock rated at 30 g for 11 milliseconds, all axes, and a resistance to vibration rated at 5 g (operating). Overload protection specifications include an ambient temperature compensation between -20 and 60 degrees Celsius and differential release Phase-loss protection.