Square D | PEF361600LS | Circuit Breaker | 1600A | 3-Pole | 600V | Bolt-On

Square D PEF361600LS Circuit Breaker is a rugged, high-capacity protection device built for demanding industrial environments. Designed for maintenance, retrofit, and replacement projects where exact specifications matter, this 1600A, 3-pole, 600V bolt-on breaker provides reliable, long-lasting protection for large three‑phase systems.

• Amperage: 1600 A
• Poles: 3-Pole
• Voltage: 600 V
• Mounting: Bolt-On
• Best compatibility reference: Part number PEF361600LS

Who this is for: engineers and technicians responsible for power distribution in industrial plants, data centers, manufacturing lines, and large equipment setups. If you’re upgrading or replacing a bolted-panel breaker in a system that runs on three‑phase power, this unit is designed to drop into compatible Square D panels with bolt-on bus connections.

Key benefits and use cases:

• Reliable three-phase protection: Ideal for heavy-duty, high-current applications where all three phases must be protected together.
• Secure bolt-on mounting: Provides a robust, vibration-resistant connection suitable for environments with equipment vibration or movement.
• 600V operational range: Suitable for standard industrial distribution networks that operate up to 600 volts, helping you maintain correct protection without overrating your system.
• Clear compatibility reference: Using the PEF361600LS part number helps ensure a precise fit, preserving panel integrity and listing compliance.
• Practical retrofit and replacement solution: Designed to align with existing Square D installations, making it a practical choice for upgrading, repairing, or renewing end-of-life breakers.

Installation and readiness notes: before ordering, confirm fit and ratings for your specific panel or switchgear. The part number PEF361600LS is the most reliable reference for compatibility, and proper mounting hardware along with panel listing must be observed to maintain safe, code-compliant operation.

In real-world setups, this breaker supports large-scale distribution tasks—protecting heavy machinery, conveyors, pumps, and HVAC systems that rely on stable, three-phase power. For projects focused on maintenance, retrofit, or replacement, the Square D PEF361600LS delivers the performance you need with the confidence that comes from using a purpose-built, reputable component from a trusted electrical system partner.