NE221040 | Circuit Breaker | 40A | 2-Pole | 240V

The NE221040 circuit breaker is an industrial-grade protection device built for 240V systems. Rated at 40A with a 2-pole design, this breaker ensures safe, simultaneous isolation of both conductors when fault current occurs, protecting wiring, equipment, and personnel in demanding environments.

Key specifications

• Amperage: 40A
• Poles: 2-Pole
• Voltage: 240V
• Part number reference: NE221040 (best compatibility reference)

Why it’s the right choice

• Reliable isolation: The 2-pole design ensures both live conductors are interrupted, enhancing circuit safety.
• Clear compatibility cue: Use NE221040 as the primary reference to match fit and ratings.
• Maintenance-ready: Ideal for replacement, retrofit, or routine servicing where matching specs matter.
• Industrial-grade durability: Built to withstand the rigors of commercial and light industrial installations.

Use cases and scenarios

Best suited for service panels and distribution circuits that require predictable protection at 40A on 240V lines. Use during:

• Maintenance projects to restore original protection levels quickly
• Retrofits where you’re upgrading or replacing an aging breaker
• Emergency replacements to minimize downtime in warehouses, fabrication floors, and commercial facilities

Important compatibility note

Fit and ratings verification is essential before ordering. The NE221040 part number functions as the most reliable compatibility reference, ensuring you don’t mismatch panel footprint or electrical characteristics.