HEF213040 | Circuit Breaker | 40A | 1-Pole | 277V

Meet the HEF213040 industrial circuit breaker — a precise 40A, 1-Pole device designed for demanding electrical environments. Built for maintenance, retrofit, and replacement projects, this breaker delivers dependable circuit protection in 277V systems while keeping compatibility top of mind.

Key specifications

• Amperage: 40A
• Poles: 1-Pole
• Voltage: 277V

What makes the HEF213040 unique

Unlike generic replacements, the HEF213040 is specifically identified by its part number, making compatibility checks straightforward for industrial panels and legacy installations. Its 1-Pole design is ideal for protecting individual branch circuits in commercial or light industrial spaces, and the 277V rating aligns with common distribution for lighting and control circuits. This combination — precise amperage, single-pole protection, and 277V capability — helps you maintain safe, reliable operation without over-engineering your panel.

Ideal use cases

• Maintenance and service when an existing 40A, 1-Pole breaker needs replacement
• Retrofit projects where a like-for-like specification is required to fit into existing panels
• Spare parts for industrial electrical rooms that run 277V distribution
• Protection of individual lighting or control circuits in commercial facilities

Why it matters for your project

Choosing the correct part number is the quickest path to a trouble-free install. For the HEF213040, the part number is the best reference to ensure you’re matching the exact fit, rating, and pole configuration your panel requires. Before ordering, verify:

• Amperage match: 40A
• Pole count: 1-Pole
• Voltage rating: 277V

Compatibility and installation guidance

To minimize downtime and ensure proper protection, cross-check your current breaker against the HEF213040’s specs and the panel label. When in doubt, use the part number as your primary reference, and confirm that the physical form, mounting scheme, and terminal connections align with your enclosure. If your system feeds 277V circuits or lighting-control circuits, this 1-Pole, 40A device is well-suited to restore reliable, code-respecting protection.

Ready to secure your circuits with a dependable replacement? The HEF213040 is designed to meet the exacting requirements of maintenance, retrofit, and replacement projects, delivering targeted protection where it’s needed most.