3P40 | Circuit Breaker | 40A | 3-Pole | 240V | Plug-In

The 3P40 circuit breaker is a rugged, industrial 3-pole protective device designed for 240V systems, delivering reliable overcurrent protection at a 40A rating. Built for maintenance, retrofit, and replacement work, this plug-in breaker simplifies field swaps and minimizes downtime in demanding environments.

What sets the 3P40 apart:

• Three-pole protection for synchronized shutdown of all phases, safeguarding motors, drives, and multi-phase equipment.
• 40A, 240V capability tuned for common industrial loads, from conveyors and pumps to HVAC and motor control centers.
• Plug-in design enables quick installation or replacement without complex wiring or mounting hardware, reducing service time on the line.
• Clear compatibility reference—use the part number 3P40 to verify fit with your panel and protection scheme.

Ideal use cases

• Routine maintenance: swap in seconds during scheduled downtime to keep equipment protected.
• Retrofit projects: upgrade older panels to modern, reliable overcurrent protection with minimal disruption.
• Replacement scenarios: quickly restore a failed circuit breaker in control cabinets, drives, or machinery enclosures.
• New installations: suitable for three-phase circuits where a 40A threshold is appropriate for motor starters or process equipment.

How to ensure a proper match

Before ordering, confirm fit and ratings for your specific application. The 3P40 is identified by its 3-pole, 240V, 40A specification. The part number is the most reliable reference for compatibility, so keep 3P40 on hand when checking against your panel catalogue or schematic.

Key specifications

• Amperage: 40 A
• Poles: 3-Pole
• Voltage: 240 V
• Plug-In: Yes
• Part number: 3P40

Designed for professionals who maintain industrial systems, the 3P40 delivers straightforward protection, fast serviceability, and dependable performance in demanding environments. Whether upgrading an aging panel or performing a routine replacement, this plug-in circuit breaker helps you protect critical equipment with precision and ease.