Square D HJA36080 - 80 A, 600 V, 3-Pole Plug-In Circuit Breaker | AmpState

Square D HJA36080 is a rugged 3-pole, 80A, 600V plug-in molded case circuit breaker designed to shield panelboards and loadcenters from overcurrent and short-circuit events. Built for reliable performance in demanding electrical environments, this unit delivers precise protection where it matters most.

Engineered for fast, downtime-friendly installation, the plug-in connection lets you swap or upgrade breakers with minimal panel disruption. The thermal-magnetic trip unit provides stable, repeatable protection—quickly responding to overloads while preventing nuisance trips, so your circuits stay protected without unnecessary interruptions.

Key benefits

• Fast plug-in connection for quick installation and effortless replacements in existing panels and loadcenters.
• Thermal-magnetic trip unit delivers dependable overload and short-circuit protection with repeatable performance.
• 3-pole design supports three-phase configurations common in commercial and light industrial applications.
• OEM-compatible fitment with matching Square D load centers and panelboards to ensure proper electrical coordination.
• 80A, 600V rating suitable for medium-duty branch circuits across residential, commercial, and light industrial settings.

Applications and use cases

• Primary protection for branch circuits in panelboards and loadcenters in commercial spaces, workshops, and light-industrial environments.
• Ideal for upgrades or expansions in existing Square D systems where reliable, code-compliant overcurrent protection is needed.
• Used as a replacement breaker in installed systems to restore optimal protection without extensive panel modifications.

Technical specifications at a glance

• Manufacturer: Square D
• Part number: HJA36080
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 80 A
• Voltage rating: 600 V
• Number of poles: 3
• Mounting style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Designed for compatibility and dependable performance, this Square D HJA36080 plug-in breaker from AmpState is a practical, efficient choice for electricians seeking solid protection that aligns with OEM panel standards. Whether you’re upgrading a commercial panel, wiring a light-industrial distribution, or refreshing an older installation, this 3-pole breaker delivers swift installation, reliable protection, and peace of mind in a compact molded-case package.