Allen-Bradley 140M-C2E-B40-KN 4.0A 3-Pole 600 V Circuit Breaker

The Allen-Bradley 140M-C2E-B40-KN is a robust three-pole molded-case circuit breaker engineered to protect three-phase power circuits with precision. With a 4.0 A current rating and a 600 V maximum voltage, this part number 140M-C2E-B40-KN is built for reliable performance in demanding industrial environments, making it an ideal choice for control panels, machinery feeders, and wattage distribution systems.

• Current rating: 4.0 A
• Poles: 3
• Voltage rating: 600 V
• Part number: 140M-C2E-B40-KN
• Type: Molded-case circuit breaker (MCCB)

What makes this model stand out is its combination of solid industrial build and precise protective behavior. Designed to interrupt fault currents and prevent damage to downstream equipment, the 140M-C2E-B40-KN helps reduce unplanned downtime and extends the life of motors, drives, and control circuits. The three-pole configuration ensures balanced protection across all phases, which is essential for reliable three-phase operation.

Ideal use cases include:

• Protecting three-phase motor circuits in automated machinery and production lines
• Providing feeder protection in control panels and compact switchgear
• Replacing or stocking a matching 140M-series component for consistent field upgrades or repairs

Practical considerations for installation and operation:

• Verify compatibility with your panel’s 3-pole, 600 V protection scheme and ensure correct mounting orientation for secure operation
• Use as part of a coordinated protection strategy alongside upstream and downstream devices to maintain system integrity
• Handle only by qualified personnel and follow applicable electrical codes and safety practices during installation and maintenance

In summary, the Allen-Bradley 140M-C2E-B40-KN delivers dependable three-phase overcurrent protection at 600 V with a precise 4.0 A rating. Its rugged design, paired with a trusted brand lineage, makes it a dependable choice for engineers and technicians building or upgrading industrial control panels and power distribution systems. The exact part number and rating ensure a straightforward, drop-in replacement or new installation that aligns with your existing 140M-based configurations.