Allen-Bradley 140M-K8P-D40 Motor Circuit Breaker

Product Overview

The Allen-Bradley 140M-K8P-D40 is a motor circuit breaker from the 140M Circuit Breakers product line. It features a K-frame design with a magnetic-only trip unit, offering fast response for fault conditions. Rated for 400 Amps and providing 35 to 65 kiloamps interrupting capacity at 480 Volts AC, this breaker delivers reliable motor protection.

Engineers use the 140M-K8P-D40 in machine control panels, motor control centers, and enclosed motor starters. Typical applications include overload and short-circuit protection for pumps, fans, and conveyors.

Technical Specifications

Electrical Performance

The 140M-K8P-D40 provides high interrupting capacity, ensuring safe disconnection during severe fault conditions. With a magnetic-only trip unit, it reacts instantly to short-circuit currents, preventing equipment damage and downtime.

Applications

Engineers integrate the 140M-K8P-D40 into:

• Machine control panels

• Motor control centers

• Enclosed motor starter systems

• Industrial pumps, fans, and conveyor protection

The breaker supports a lockable actuator for safe disconnecting operations, making it suitable for compliance-driven installations.

Standards and Compliance

The 140M-K8P-D40 meets multiple international safety standards, including UL489, CSA, CE, CCC, and IEC/EN 60947, ensuring global applicability across regulated industries.

FAQ

Q1: Is the Allen-Bradley 140M-K8P-D40 brand new and original?
A1: Yes, all 140M-K8P-D40 units are brand new and factory sealed.

Q2: What is the shipping time for the 140M-K8P-D40 circuit breaker?
A2: Orders ship within 3 days to 2 weeks depending on order size, using DHL and other reliable couriers.

Q3: What trip mechanism does this breaker use?
A3: The 140M-K8P-D40 uses a magnetic-only trip module for short-circuit protection.

Q4: What is the interrupting capacity of this breaker?
A4: It delivers between 35 and 65 kiloamps at 480 Volts AC.

Q5: Can I use this breaker for conveyor motor protection?
A5: Yes, the 140M-K8P-D40 is well suited for pumps, fans, and conveyor applications.

Q6: What if I face a quality issue with this breaker?
A6: We provide a 30-day return policy for all 140M-K8P-D40 units if any quality problem occurs.