Square D EJB36100 - 100 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Meet the Square D EJB36100—a robust 100 A, 600 V, 3-pole bolt-on molded case circuit breaker engineered to safeguard panelboards and loadcenters from overcurrent and short-circuit events. Built for dependable protection in real-world electrical environments, this breaker is ready to handle the demands of modern residential, commercial, and light industrial applications.

Key design advantages you’ll feel in daily operation:

• Secure bolt-on mounting: A rigid, vibration-resistant connection to the busbar ensures consistent electrical contact and steady performance even in demanding service conditions.
• Thermal-magnetic trip unit: Delivers stable, repeatable protection by responding to both overcurrent and short-circuit events, reducing nuisance trips and protecting downstream circuits.
• OEM-compatible fit: Designed to pair with matching Square D loadcenters and panelboards, guaranteeing proper alignment, smooth installation, and reliable performance.
• Versatile three-pole design: Ideal for three-phase systems common in commercial and light industrial settings, while still serving residential panelboard configurations where three-phase protection is required.

Technical snapshot

• Manufacturer: Square D
• Part number: EJB36100
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 100 A
• Voltage rating: 600 V
• Number of poles: 3
• Mounting style: Bolt-on
• Applications: Branch circuit overcurrent and short-circuit protection in panelboards/loadcenters

Who should consider this breaker? electricians and facility managers seeking a proven, OEM-compatible solution for protecting three-phase feeders and branch circuits in a variety of settings. It’s particularly well-suited for panel upgrades, service entrance panels, and distribution boards where reliable trip performance and secure mounting matter most.

Why choose this Square D breaker over alternatives? It combines a bolt-on design for solid mechanical integrity with a thermal-magnetic trip mechanism tuned for consistent protection timing. When paired with the correct OEM enclosure, it delivers seamless integration, reducing installation hassles and ensuring long-term reliability for your electrical system.

Practical tips for use:

• Verify the breaker is used with compatible OEM panelboards or loadcenters to ensure fit and performance.
• Plan for three-phase protection in spaces that demand reliable three-pole switching and coordinated protection schemes.
• Follow standard electrical practices for mounting and safety, treating the bolt-on connection as the primary path for current flow.

Secure, reliable, and purpose-built for demanding environments—the Square D EJB36100 is ready to protect critical circuits with precision. Available from AmpState for projects that require OEM-aligned protection you can trust.