140G-N5H4-E12

The Allen-Bradley 140G-N5H4-E12 is a molded case circuit breaker engineered for high-current, high-voltage applications. It is part of the 140G series from Rockwell Automation. This device can manage currents up to 1200 Amps and is rated with a robust interrupting capacity of 50 kA, essential for fault current mitigation. Its frame designation is N, indicating design attributes that support substantial electrical loads.

Protection is provided through an electronic LSI design, which enhances safety and operational reliability. The circuit breaker is structured with four poles, allowing it to cater to a variety of configurations and applications. It operates effectively at a rated insulation voltage of 1000 volts, making it suitable for significant voltage environments.

Additionally, the 140G-N5H4-E12 can endure transient events, supported by a rated impulse withstand voltage of 8 kV, which safeguards the system against spikes. This unit weighs 27.56 pounds, providing a sturdy but manageable installation option. Both mechanical and electrical life specifications are rated at 60 operations per hour, indicating its durability and readiness for repeated use under heavy loads. This combination of features makes the 140G-N5H4-E12 circuit breaker a dependable choice for complex electrical systems.