Allen-Bradley 140M-C2E-B40 Motor Protection Circuit Breaker Overload & Short Cir

Allen-Bradley 140M-C2E-B40 Motor Protection Circuit Breaker

The Allen-Bradley 140M-C2E-B40 is a three-phase thermal-magnetic motor protection circuit breaker designed to safeguard motors against overloads and short circuits. It features adjustable bimetal trips for precise overload protection and fixed magnetic trips to promptly disconnect the motor circuit during short-circuit events.

Key Features

• Adjustable Thermal Overload Protection: The device offers a thermal overload release setting range of 2.5 to 4.0 A, allowing for tailored protection based on specific motor requirements.
• Fixed Magnetic Trip: Equipped with a magnetic release current fixed at 13 to 14 times the maximum setting range, ensuring rapid response to short-circuit conditions.
• High Breaking Capacity: Rated for a short-circuit breaking capacity of up to 100 kA at 400 V AC, providing robust protection in demanding environments.
• Phase Failure Sensitivity: Incorporates phase loss protection to detect and respond to phase failures, enhancing motor safety.
• Compact Design: With dimensions of 45 mm width, 70 mm depth, and 90 mm height, the breaker is suitable for installations where space is limited.
• Easy Installation: Features screw terminals and DIN rail mounting for straightforward setup and maintenance.

Technical Specifications

• Rated Operational Current (Ie): 4 A
• Rated Operating Voltage: Up to 690 V per IEC standards
• Rated Operation Power at AC-3, 400 V: 1.5 kW
• Rated Operation Power at AC-3, 230 V: 0.75 kW
• Electrical Life Cycle: Up to 100,000 operations at maximum rated current
• Switching Frequency: Maximum of 25 operations per hour
• Trip Class: Class 10
• Degree of Protection: IP2X

The 140M-C2E-B40 is engineered to provide reliable motor protection with its combination of adjustable thermal settings and fixed magnetic trips, making it a suitable choice for various industrial applications.