Square D | PHF2536-1800A | Circuit Breaker | 1800A | 3-Pole | 600V | Bolt-On

Engineered for demanding industrial applications, the Square D PHF2536-1800A is a high-current, three-pole circuit breaker designed to protect your 600V distribution system. With an 1800A rating and bolt-on mounting, this unit is built for retrofit, maintenance, or replacement projects where exact spec matching matters. Use this PHF breaker in compatible Square D enclosures to ensure reliable protection and fast, secure installation.

Key specifications

• Amperage: 1800A
• Poles: 3-Pole
• Voltage: 600V
• Mounting: Bolt-On
• Model family: PHF bolt-on series
• Part reference: PHF2536-1800A

Who it's for and practical use cases

Ideal for maintenance and retrofits in large electrical panels, service upgrades for aging equipment, or as a replacement in systems demanding high-current protection without changing your enclosure. This breaker is well-suited for industrial facilities such as manufacturing lines, processing plants, and utility rooms where downtime is costly and compatibility is non-negotiable.

Why this matters

The 3-pole design ensures balanced protection across three phase conductors, while the 600V rating supports typical industrial distribution environments. Bolt-On installation provides a robust, vibration-resistant mount in fixed-panel configurations, helping prevent loosening over time and reducing maintenance calls.

Compatibility and ordering tips

Notes: Confirm fit and ratings before ordering. The part number PHF2536-1800A is the best reference for compatibility with your Square D enclosure and bus configuration.