Allen-Bradley 140MP-A3E-B40

Allen-Bradley 140MP-A3E-B40 | 40A IEC Motor Protection Circuit Breaker with Adjustable Thermal and Magnetic Trip

Overview

The Allen-Bradley 140MP-A3E-B40 is a 3-pole, 40A motor protection circuit breaker designed to provide manual motor control, overload protection, and short-circuit protection in one compact unit. It is part of the 140MP IEC breaker family and features adjustable thermal overload and fixed magnetic trip settings. Ideal for use in motor starters and protection circuits, it provides high fault current interrupt capacity and integrates easily with contactors.

Key Features

• Rated Current: 40A

• Poles: 3

• Interrupt Capacity: 55kA @ 400V AC (IEC 60947-2)

• Trip Type:

  • Thermal (adjustable): for overload protection

  • Magnetic (fixed): for short-circuit protection

• Control Type: Rotary handle

• Mounting: DIN rail or panel mount

• Connection Type: Screw terminals

• Reset Mode: Manual reset

• Busbar compatibility: With Allen-Bradley 100-C contactors

Technical Specifications

• Catalog Number: 140MP-A3E-B40

• Voltage Rating: 690V AC max

• Utilization Category: AC-3

• Operating Temperature: -20°C to +60°C

• Standards: IEC 60947-2 / 60947-4-1

• Certifications: CE, UL, CSA, CCC, EAC

• Dimensions (HxWxD): Approx. 130 x 55 x 90 mm

Applications

• Motor feeders and starters

• HVAC and pump panels

• Conveyor systems

• Industrial control cabinets

• Machine OEMs using IEC standard gear

Why Choose the 140MP-A3E-B40?

• Reliable Motor Protection: Combines overload and short-circuit protection

• Compact and Modular: Saves panel space and integrates with contactors

• High Interrupting Capacity: Withstands demanding industrial faults

• Adjustable Settings: For precise protection tuning

• IEC Compliant and Globally Certified

Order Now

The Allen-Bradley 140MP-A3E-B40 is available and ready for global shipment.