Square D | HDF36020 | Circuit Breaker | 20A | 3-Pole | 600V

The Square D HDF36020 circuit breaker delivers dependable protection for three-phase electrical systems, rated at 20A per pole and capable of handling up to 600V. Built for maintenance, retrofit, and replacement projects, this 3-pole breaker helps safeguard critical equipment while preserving system performance. With the part number HDF36020, you have a precise reference for compatibility and fit.

Key specifications

• Amperage: 20A
• Poles: 3-Pole
• Voltage rating: 600V
• Part reference: HDF36020

What makes this breaker unique

• Designed for reliable three-phase protection in commercial and industrial environments, safeguarding motors, drives, and other equipment tied to 600V systems.
• Targeted for maintenance, retrofit, and replacement workflows where exact spec matching is essential to minimize downtime and electrical ambiguity.
• The part number HDF36020 serves as the best reference for compatibility, reducing guesswork when sourcing a like-for-like replacement.

Ideal use cases

• Retrofit projects in legacy Square D panels that require a precise 3-pole, 20A, 600V breaker.
• Maintenance swaps to restore original protection characteristics without altering wiring or panel layout.
• Replacement of failed breakers in three-phase equipment for consistent trip performance and system protection.

Usage guidance and installation considerations

Before ordering, verify that the application matches the 20A, 3-Pole, 600V specifications. The best way to ensure compatibility is to cross-check against the part number HDF36020 and the panel’s labeling. For safety and proper function, installation and servicing should be performed by a qualified electrician, following all applicable electrical codes and standards.

If you’re updating or maintaining a three-phase 600V circuit, the HDF36020 provides a precise, purpose-built solution designed to align with Square D protection standards. Confirm fit and ratings on your specific panel before proceeding, and rely on the part number as your primary compatibility reference.