Square D EGB36045 - 45 A, 480 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Meet the Square D EGB36045—a rugged, reliable 45 A, 480 V, 3-pole bolt-on molded case circuit breaker engineered to protect your electrical distribution with precision. Built for dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers, this breaker delivers factory-grade performance in a compact, install-ready package.

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection for stable, long-term reliability in demanding environments.
• Thermal-magnetic trip unit delivers stable, repeatable protection by quickly responding to short circuits while handling overcurrent conditions with controlled timing.
• 3-pole configuration designed for balanced 3-phase circuits common in commercial and light industrial applications.
• OEM-compatible with matching Square D load centers and panelboards, ensuring smooth upgrades, replacements, and system integration.
• Versatile installation suitable for residential, commercial, and light industrial panels—ideal for feeders, main distribution, and branch circuit protection.

The EGB36045 isn't just a part; it's a strategic safeguard for your electrical system. The bolt-on design minimizes connection looseness in vibration-prone settings, while the thermal-magnetic trip unit provides predictable protection across a range of temperatures and load profiles. With a 45 A rating at 480 V and three poles, it’s an excellent choice for protecting motors, lighting runs, HVAC circuits, and other three-phase loads in panelboards and load centers.

What problems does it solve? It reduces nuisance trips and protects conductors and devices from short-circuit events, helping prevent equipment damage and downtime. It’s a practical, long-term solution for installations where secure mounting, reliable trip behavior, and OEM-grade compatibility matter most.

Who is it ideal for? Electrical professionals upgrading or stocking panels in commercial facilities, mixed-use buildings, and light industrial spaces, as well as homeowners or facilities teams replacing worn breakers in Square D systems.

Key specifications at a glance

• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 45 A
• Voltage rating: 480 V
• Poles: 3
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Choose the Square D EGB36045 for a dependable, OEM-aligned solution that keeps your three-phase circuits protected with consistent performance, even in challenging installations. Install with confidence in compatible panelboards and load centers, and enjoy the peace of mind that comes with proven Square D engineering from AmpState.