Square D | EGB36090 | Circuit Breaker | 90A | 3-Pole | 347V | Bolt-On

Square D EGB36090 is a dependable circuit breaker built to protect your 3‑phase electrical systems with precision. Designed for maintenance, retrofit, and replacement projects, this 90A, 3‑pole unit operates at 347V and uses a bolt‑on mounting for secure, straightforward installation in compatible panels.

• Amperage: 90A
• Poles: 3‑Pole
• Voltage: 347V
• Mounting: Bolt‑On
• Compatibility reference: Part number EGB36090

Why choose this Square D bolt‑on breaker? The combination of a sturdy bolt‑on design and a three‑pole, 347V rating makes it a reliable choice for protecting larger commercial or light industrial loads. Its 90A current rating provides a precise protection point for circuits that demand robust safety without unnecessary tripping, helping keep critical equipment and processes online when faults occur.

This unit is particularly well suited for:

• New installations in 3‑phase distribution panels that require a bolt‑on solution
• Retrofits where exact specifications matter and the panel accepts bolt‑on breakers
• Routine maintenance cycles and replacements for panels operating at 347V with 3‑pole configuration

Key considerations to ensure a perfect fit: always verify the exact compatibility by matching the part number EGB36090 to your panel’s labeling and spec sheet, and confirm the panel is designed for 347V, 3‑pole, bolt‑on breakers. If you’re refreshing an aging electrical system or upgrading to a safer, more controlled protection scheme, this Square D breaker delivers predictable performance and durable operation in demanding environments.

Practical notes for installation and use: keep a clear understanding of your system’s voltage class and pole count, follow panel manufacturer guidelines for mounting torque and seating, and store the part in a clean, dry environment to preserve the integrity of contacts and trip mechanisms. With the correct fit, this EGB36090 breaker can simplify upgrades and ensure consistent, reliable protection across your three‑phase circuits.