Square D EGB36100SA - 100 A, 480 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Introducing the Square D EGB36100SA — a 100 A, 480 V, 3-pole bolt-on molded case circuit breaker built to protect your electrical distribution with precision. Designed for reliability in panelboards and loadcenters, this unit delivers sturdy, dependable branch circuit overcurrent and short-circuit protection across commercial, light industrial, and select residential applications.

• Secure bolt-on mounting provides a rigid, vibration-resistant connection to bus bars, minimizing movement and wear in challenging environments.
• Thermal-magnetic trip unit delivers stable, repeatable protection by responding to both overloads and short circuits with an appropriate instantaneous trip for fault conditions.
• Three-pole, 480 V design ideal for three-phase systems, ensuring coordinated protection for all legs of your distribution network.
• OEM-compatible engineered to work seamlessly with matching Square D OEM loadcenters and panelboards, reducing compatibility issues and installation downtime.
• 100 A rating with broad application across feeders and branch circuits, balancing protection and capacity for everyday electrical loads.

This bolt-on molded case circuit breaker is purpose-built for dependable protection where space and reliability matter. Whether you’re upgrading a panel, expanding a commercial installation, or maintaining light industrial equipment, the EGB36100SA helps prevent costly electrical faults while keeping service interruptions to a minimum.

Who benefits most? electrical contractors, facilities managers, and maintenance teams who need robust, plug-and-play protection for 480 V three-phase systems, without sacrificing ease of installation or long-term reliability. It’s especially well-suited for motor feeders, distribution panels, and load centers in offices, retail spaces, small manufacturing, and data-center ancillary setups where consistent protection is critical.

Key specifications at a glance:

• Manufacturer: Square D
• Part Number: EGB36100SA
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 100 A
• Voltage Rating: 480 V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

When you choose the EGB36100SA, you’re selecting a component designed to marry precise protection with straightforward integration. It’s a practical, durable solution for complex electrical workflows that demand dependable performance, predictable trip behavior, and compatibility with your existing Square D panel ecosystem — all backed by AmpState’s commitment to delivering quality parts for real-world needs.