Allen-Bradley 140MG-G8P-B30-KA 3 Pole 3A Instantaneous Trip Circuit Breaker
Overview
Description
The Allen-Bradley 140MG-G8P-B30-KA is a high-performance motor circuit protector (MCP) designed to provide reliable short-circuit protection for electric motors. Part of the Allen-Bradley 140MG series, this device features a 3-pole configuration and is built on the compact G-frame with a maximum frame rating of 125 A.
This unit is equipped with a magnetic-only trip unit, offering instantaneous protection without thermal overload protection—ideal for use in coordinated motor protection schemes where thermal protection is provided separately. The adjustable magnetic trip range (12–33 A) allows for precise calibration to match motor inrush characteristics, minimizing nuisance tripping while ensuring fast fault interruption.
With a rated operational current of 3 A, the 140MG-G8P-B30-KA delivers dependable performance in industrial motor control applications, such as motor control centers (MCCs), panels, and machinery. The built-in KA suffix also includes an auxiliary contact for status monitoring or interlocking.
Specifications
| Dimensions | 12 × 8 × 9 in | 12 × 8 × 9 in |
|---|---|---|
| Weight | 5 lbs | 5 lbs |
Weight: 5 lbs
Dimensions: 12 × 8 × 9 in