Square D EJB36100SA - 100 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Meet the Square D EJB36100SA—a robust 100 A, 600 V, 3-pole bolt-on molded case circuit breaker designed for dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Manufactured by Square D and offered by AmpState, this unit marries secure mounting with precise protection for commercial and light industrial electrical distributions.

• Secure bolt-on mounting: delivers a rigid, vibration-resistant bus connection that stays locked in even in demanding environments.
• Thermal-magnetic trip unit: provides stable, repeatable protection against overloads and instantaneous short-circuit trips, reducing nuisance trips and safeguarding downstream equipment.
• Three-pole design: ideal for 3-phase systems, ensuring simultaneous disconnection of all conductors for safer shutdown in fault conditions.
• 100 A, 600 V rating: suited for feeder and branch-circuit protection in commercial and light industrial panels in up to 600 V systems.
• OEM-load center compatibility: designed to pair with matching Square D OEM load centers and panelboards for straightforward installation and dependable performance.
• Durable molded-case construction: built to endure field use with reliable performance over time.
• Versatile applications: appropriate for residential, commercial, and light industrial settings where robust protection and reliable operation matter.

Use cases and practical insights:

• Install as a main or branch circuit protection device in 3-phase panelboards and load centers needing a 100 A feed with 600 V capacity.
• Replace aging bolt-on breakers when upgrading electrical systems in offices, retail spaces, or small manufacturing environments to support modern loads.
• Pair with compatible OEM enclosures to maintain proper panel coordination and ensure reliable protection across the distribution system.
• In vibration-prone environments—such as mechanical rooms or equipment spaces—the secure bolt-on mounting enhances long-term reliability by resisting loosening over time.

Technical snapshot

• Manufacturer: Square D
• Part number: EJB36100SA
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 100 A
• Voltage rating: 600 V
• Number of poles: 3
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Why choose this Square D breaker from AmpState? It’s a genuine, OEM-compatible solution designed to deliver predictable protection, easy integration with your existing panelboards, and durable performance across residential, commercial, and light industrial installations. When reliability and precise coordination matter for your electrical distribution, the EJB36100SA is engineered to perform and backed by AmpState’s commitment to authentic, readily available Square D components.