Allen Bradley 32 → 45 A 140M Motor Protection Circuit Breaker, 480 V

The 140M-F8E-C45 MPCB has high breaking capacity and is Frame size F. It has an adjustable thermal current range of 32 – 45 A and a maximum available fault current of 5kA. The supply voltage of 480 V, 60 Hz.

UL Listed Application Ratings:

UL 508 - Manual Motor Controller
UL 508 Manual Self-Protected (Type E) Combination Motor Controller

An MPCB is a safety measure device which is used for controlling electric motors and protecting them from faults such as overloads and short circuits, which can cause serious damage to the motor. They work by interrupting the circuit when abnormal conditions are detected and instantly switching off the motor. The three main functions of an MCPB are thermal protection, magnetic protection, and phase protection. They can also turn a motor off and on manually. They are a cost-efficient and reliable type of motor protection technology and offer a low reset time, which minimises operational downtime. They are available in many different sizes and settings, making them a versatile option.

Rockwell Automation is a global leader in industrial automation and digital transformation, and brings smart manufacturing to life. With a long legacy of creating Allen-Bradley® integrated control and information solutions, we help make you as productive as possible. Our portfolio of sensing, safety and motor control products can support your move towards smart machine applications. Allen-Bradley® IO-Link sensors are data-enabled and communicate with all field buses, providing diagnostic and health information about the device before a machine stops, and enabling quick production changeovers through fast parameter downloads from PLCs into the device. This reduces machine downtime and increases manufacturing OEE. For safety components, products with built-in diagnostics simplify the set-up of the smart device, and reduce maintenance, leading to a more efficient, machine data-driven approach.