Square D | FA26040 | Circuit Breaker | 40A | 2-Pole | 600V

Meet the Square D FA26040 Circuit Breaker—a reliable 40-amp, 2-pole device designed for demanding electrical environments. With a 600-volt rating, it provides solid circuit protection for maintenance, retrofit, and replacement projects where exact specifications are essential. This is a genuine Square D part built to integrate seamlessly with standard panels and enclosures.

Key specifications at a glance

• Amperage: 40 A
• Poles: 2-Pole
• Voltage rating: 600 V

Why choose the FA26040 for your panel

• OEM-grade compatibility: As a Square D component, it matches the expected frame size, mounting holes, and trip characteristics used in many commercial and industrial installations.
• Exact reference for compatibility: The FA26040 part number is the most reliable indicator when selecting a replacement or retrofit, minimizing guesswork and downtime.
• Purpose-built for maintenance and retrofit: Designed to swap into existing wiring and bus configurations without requiring changes to upstream components.

What problems it solves

When you need dependable protection for circuits carrying up to 40 A, this 2-pole breaker interrupts both conductors to prevent overloads and potential damage. Its 600 V rating makes it suitable for a range of commercial and light industrial power distribution setups where higher voltage presence is common.

Ideal use cases

• Maintenance swaps in equipment racks, panels, and control enclosures
• Retrofits to restore original protection levels in aging systems
• Replacement for failed or outdated breakers that match FA26040 specifications

Installation and best practices

Before ordering, confirm fit and ratings match your existing equipment, and rely on the FA26040 part number as your primary compatibility reference. When installing, follow standard electrical safety procedures: power down the circuit, and secure the breaker in the panel according to manufacturer guidelines.

Bottom-line

The Square D FA26040 Circuit Breaker delivers dependable, precise protection for 40 A circuits in a 2-pole, 600-volt format. It’s a practical, straightforward solution for commercial and industrial systems that require a direct, compatible replacement or retrofit option.