Square D | FH26040 | Circuit Breaker | 40A | 2-Pole | 600V

Square D FH26040 is a genuine 40A, 2-pole circuit breaker designed for use in maintenance, retrofit, and replacement projects where exact specifications must be matched. This OEM device is built to integrate with compatible Square D panels and equipment, delivering dependable protection for your electrical circuits at up to 600V.

• Amperage: 40A
• Poles: 2‑Pole
• Voltage rating: 600V
• Part reference: FH26040 (best compatibility cross-check)

Why choose this specific model? If you’re maintaining a legacy panel, upgrading a feeder, or replacing a failed breaker, using the exact FH26040 ensures the correct fit, trip characteristics, and electrical clearance expected by Square D systems. The two-pole design provides simultaneous disconnection of two conductors, which is essential for safely interrupting circuits in higher voltage applications and maintaining panel integrity.

Ideal use cases include:

• Retrofits in existing Square D panels that specify FH26040 or equivalent 2‑pole 40A, 600V breakers
• Maintenance replacements to restore original protection levels without altering panel layout
• Repairs in industrial or commercial installations where compact, OEM-grade protection is required

Important notes for installation: - Confirm that the breaker model, amperage, and voltage align with your panel's rating and labeling before ordering. - Installation should be performed by a qualified electrician who can verify correct mounting, alignment with the bus, and torque on terminations. - Keep a record of the part number FH26040 as the primary reference for future replacements to avoid mismatches.

For anyone maintaining Square D systems that demand precise OEM components, the FH26040 offers reliable, compliant protection that preserves the integrity and safety of your electrical distribution. If you’re upgrading or replacing, this model provides a straightforward, exact-match solution that minimizes compatibility questions and downtime.