Square D EJB36080 - 80 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Meet the Square D EJB36080 — a rugged 80 A, 600 V, 3‑pole bolt-on molded case circuit breaker designed to protect branch circuits with dependable, repeatable performance. Built for panelboards and loadcenters, this device delivers targeted overcurrent and short‑circuit protection where it matters most.

• Secure bolt-on mounting: Provides a rigid, vibration‑resistant bus connection so you won’t contend with loose fittings or marginal contact during operation.
• Thermal-magnetic trip unit: Combines thermal overload protection with instantaneous magnetic trip for fast response to short circuits, delivering stable, predictable protection curves every time.
• 3‑pole configuration: Ideal for balanced 3‑phase circuits common in commercial and light industrial applications, ensuring coordinated protection across all phases.
• 80 A, 600 V rating: Suitable for a wide range of branch circuits, from motor feeders to general power distribution in medium-complex systems.
• OEM-compatible: Designed to fit and function with matching Square D OEM loadcenters and panelboards for plug‑and‑play replacement and streamlined installations.
• Molded case construction: Durable housing built to withstand everyday industrial and commercial use while delivering reliable protection over time.

This 3‑pole, bolt‑on breaker is the practical choice for electricians and facilities managers upgrading or maintaining electrical systems in residential-adjacent commercial spaces, small offices, retail environments, and light manufacturing. It provides clear, measurable protection against nuisance trips and unpredictable faults, helping minimize downtime and protect downstream equipment.

Technical snapshot

• Manufacturer: Square D
• Part number: EJB36080
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 80 A
• Voltage rating: 600 V
• Number of poles: 3
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short‑circuit protection

Why choose this breaker? It’s not just about meeting a specification — it’s about delivering reliable protection aligned to real-world electrical loads. The bolt-on design reduces vibration-related contact issues, the thermal-magnetic trip unit ensures deterministic responses during overloads and faults, and the 3‑pole arrangement supports cohesive protection for three‑phase systems often found in commercial settings. If you’re upgrading a panel or stocking critical replacement parts, the Square D EJB36080 is built to deliver consistent performance where it counts.

Tip: Before installation, confirm your enclosure supports bolt-on breakers and that the panelboard’s rating matches the 80 A, 600 V, 3‑pole configuration. Follow standard electrical safety practices and the manufacturer’s torque and installation guidelines to ensure a secure, code‑compliant fit.