Square D EGB26100 - 100 A, 480 V, 2-Pole Bolt-On Circuit Breaker | AmpState

The Square D EGB26100 is a purpose-built 100A, 480V, 2-pole bolt-on molded case circuit breaker designed to deliver dependable branch-circuit overcurrent and short-circuit protection in panelboards and load centers. Built for real-world reliability, this unit combines a secure bolt-on mounting with a rugged trip mechanism to keep critical electrical systems protected, even in challenging environments.

Why this breaker stands out

• Secure bolt-on mounting delivers a rigid, vibration-resistant bus connection that stays tight over time, reducing looseness and improving long-term reliability in panels and cabinets.
• Thermal-magnetic trip unit provides stable, repeatable protection performance across varying loads, with fast response to short circuits and well-defined current thresholds for predictable operation.
• OEM-compatible design is engineered to work seamlessly with matching Square D load centers and panelboards, streamlining installation and ensuring correct trip characteristics.
• Versatile application suitable for residential, commercial, and light industrial environments where dependable protection of feeder and branch circuits is essential.
• Durable molded case construction combines robustness with compact form, making it a practical choice for crowded panel spaces and demanding installations.

Technical specifications at a glance

• Manufacturer: Square D
• Part Number: EGB26100
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 100A
• Voltage Rating: 480V
• Number of Poles: 2
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use scenarios

Use the EGB26100 to protect feeders and branch circuits in commercial panels, light industrial distribution boards, or retrofit projects where a robust bolt-on solution is preferred. Its 480V rating makes it well-suited for higher-voltage panel assemblies and equipment rooms, while the 2-pole configuration provides reliable control for 2-wire plus ground circuits commonly found in commercial installations.

Installation and compatibility

Pair this breaker with matching Square D load centers and panelboards to ensure matched trip curves and optimal performance. The bolt-on design simplifies mounting in compatible enclosures, and the rugged construction helps maintain a solid connection in environments that experience regular vibration or movement. Before installation, confirm that the panelboard or load center is rated for 480V and supports a 2-pole, bolt-on device of this type.

What problems this solves

• Prevents nuisance trips by delivering predictable thermal-magnetic protection aligned with real-world load profiles.
• Eliminates loose connections that can occur with inconvenient mounting methods, reducing maintenance needs and downtime.
• Provides reliable protection for critical feeders in commercial and light industrial spaces, helping to maintain safety and uptime.

Ready for installation, the Square D EGB26100 brings trusted protection, solid construction, and compatibility with Square D’s panel ecosystems—ideal for electricians, facilities managers, and project teams upgrading or maintaining panelboards and load centers.