Square D HGA36020 - 20 A, 600 V, 3-Pole Plug-In Circuit Breaker | AmpState

Meet the Square D HGA36020, a rugged 20A, 600V, 3-pole plug-in molded case circuit breaker engineered for dependable protection in panelboards and load centers. Designed for fast, clean installations and straightforward field replacement, this unit keeps electrical systems safe and running with minimal downtime.

Why users choose the HGA36020

• Fast plug-in connection enables quick installation and simple replacement, reducing labor time and equipment downtime.
• Thermal-magnetic trip unit delivers stable, repeatable overcurrent and short-circuit protection, adapting to varying load conditions without nuisance trips.
• OEM-compatible design works with matching Square D load centers and panelboards, ensuring consistent fit, performance, and electrical characteristics.
• Three-pole configuration supports 3-phase protection, simplifying wiring for commercial and light industrial applications while maintaining precise coordination with other devices.
• 600V rating provides robust protection for higher-voltage distribution, expanding its suitability beyond standard residential setups.

Ideal applications and use cases

This plug-in molded case circuit breaker is suitable for branch circuit overcurrent and short-circuit protection across residential, commercial, and light industrial environments. Use it to:

• Protect three-phase equipment and motors in panelboards and load centers
• Replace failed or aging breakers quickly during maintenance windows
• Upgrade electrical distribution with a reliable, field-replaceable solution
• Maintain consistent protection in systems that demand consistent trip performance and coordination

Technical snapshot

• Manufacturer: Square D
• Part number: HGA36020
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 20A
• Voltage rating: 600V
• Number of poles: 3
• Mounting style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Choose the Square D HGA36020 for a reliable, field-friendly protection solution that aligns with your existing panelboard ecosystem, minimizes downtime during service, and delivers predictable trip performance when it matters most. Ideal for professionals who value compatibility, efficiency, and clear protection boundaries in residential, commercial, and light industrial electrical distributions.