Square D EJB36030 - 30 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

The Square D EJB36030 is a rugged 30 A, 600 V, 3-pole bolt-on molded case circuit breaker designed to deliver reliable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Built for environments where vibration and movement can occur, this breaker provides a secure, durable connection that keeps critical electrical distributions operating smoothly in residential, commercial, and light industrial settings.

• Secure bolt-on mounting for a rigid, vibration-resistant bus connection that stays in place through years of operation.
• Thermal-magnetic trip unit combines thermal overload protection with magnetic short-circuit protection for stable, repeatable response under varying load conditions.
• 3-pole design ideal for three-phase circuits and coordinated protection across multi-wire panel installations.
• OEM-compatible engineered to integrate seamlessly with matching Square D OEM load centers and panelboards, ensuring proper fit and electrical coordination.
• Electrical ratings 30 A capacity at 600 V, providing robust protection for distribution feeders and critical branch circuits.

What this means for your electrical system

Choosing the EJB36030 means committing to dependable, predictable protection that reduces nuisance trips and supports safe operation in diverse environments. It’s well-suited for service entrances, feeder circuits, and branch protections within panelboards and load centers used in homes, small to mid-size commercial spaces, and light industrial applications. The bolt-on style simplifies installation in compatible enclosures, delivering a solid, long-lasting connection that stands up to vibration and electrical stress.

Specifications at a glance

• Manufacturer: Square D
• Part number: EJB36030
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 30 A
• Voltage rating: 600 V
• Number of poles: 3
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

For reliable distribution protection that aligns with your existing panel infrastructure, the Square D EJB36030 delivers precise trip performance, durable construction, and straightforward integration—making it a practical choice for installers and facility managers seeking lasting value from their circuit protection lineup.