Square D | FH36020-BLACK | Circuit Breaker | 20A | 3-Pole | 600V

Meet the Square D FH36020-BLACK, a purpose-built 20A, three-pole circuit breaker crafted for maintenance, retrofit, and replacement tasks where exact compatibility matters. With a 600V rating, this unit is designed to reliably protect three-phase circuits in commercial and industrial environments, preserving the familiar Square D form factor you rely on.

Key specifications

• Amperage: 20A
• Poles: 3-Pole
• Voltage: 600V
• Part number: FH36020-BLACK

Why this Square D breaker stands out

This is an authentic Square D component, purposefully chosen for projects where exact match matters. The FH36020-BLACK designation is your quick reference for compatibility, helping you avoid mismatched replacements in panels that require a 3-pole, 600V device. Its design supports efficient maintenance workflows and minimizes downtime when replacing aging or failed breakers in active systems.

Ideal use cases

• Maintenance and servicing of existing electrical panels that call for a 20A, 3-pole, 600V switchgear
• Retrofits where upgrading to a compatible 3-phase solution is needed
• Replacement of a failed breaker in industrial or commercial installations that use Square D components

What problems it solves

• Mitigates downtime by providing a direct, compatible replacement
• Ensures correct electrical characteristics for safe, reliable three-phase protection at up to 600V
• Reduces ordering errors with a clearly identifiable part number designed for compatibility checks

Practical guidance for purchasing and use

Before ordering, verify fit and ratings against your panel’s documentation. Use the part number FH36020-BLACK as the primary reference to ensure you’re selecting a breaker that matches the required amperage, pole count, and voltage. For installation, enlist the help of a qualified electrician to confirm proper termination, safe de-energization, and compliance with local electrical codes.

Designed for professionals who value reliability, precise compatibility, and streamlined replacements, the Square D FH36020-BLACK makes maintenance and upgrades straightforward—so you can keep critical systems protected with confidence.