Allen-Bradley | 140M-C2E-B40 | Circuit Breaker | 4A | 480V

The Allen-Bradley 140M-C2E-B40 circuit breaker is a purpose-built protective device designed for 480 V industrial circuits that require precise overcurrent protection at 4 A. This part is ideal for maintenance, retrofit, and replacement projects where exact specifications matter, helping you preserve system performance and minimize downtime.

• Amperage rating: 4 A
• Voltage rating: 480 V
• Part number: 140M-C2E-B40
• Best reference for compatibility: use the exact part number to verify fit with your panel or legacy equipment

Why choose the 140M-C2E-B40 for your system

For control panels and distribution circuits that demand dependable 4 A protection at high voltage, this Allen-Bradley breaker delivers a predictable, clean interruption when a fault occurs. By selecting the exact 140M-C2E-B40, you align with your existing protection scheme and ensure coordinated operation with upstream devices, relays, and safety interlocks.

Ideal use cases

• Maintenance: swap in a like-for-like breaker to restore protection without altering wiring or panel configurations.
• Retrofit: upgrade retro hardware to current, spec-matched protection without reengineering control logic.
• Replacement: keep a ready-to-install spare on hand for quick recovery in critical 480 V circuits.

Compatibility and installation notes

Before ordering, confirm compatibility by matching the exact part number 140M-C2E-B40 to your equipment. Verify that the 4 A, 480 V ratings meet the circuit requirements and that physical fitment—mounting, bus connections, and enclosure type—is suitable for the panel you’re servicing.

What sets it apart

As part of the Allen-Bradley protection family, this circuit breaker integrates smoothly with existing Allen-Bradley panels and spare-part ecosystems. The alignment on part number accuracy simplifies procurement, reduces compatibility risk, and supports quicker maintenance cycles compared with generic alternatives.

Practical tips for best results

• Keep a spare 140M-C2E-B40 on site for rapid replacements in mission-critical lines.
• Document the exact part number in your maintenance logs to prevent cross-reference errors during future service events.
• When replacing, inspect surrounding wiring and connection terminals for signs of wear to ensure a solid, long-lasting installation.