Square D | NEF361000LS | Circuit Breaker | 1000A | 3-Pole | 600V

Meet the Square D NEF361000LS Circuit Breaker—a heavy‑duty, three‑pole protection device designed for demanding 3‑phase power distribution. Rated at 1000A and capable of handling up to 600V, this breaker is built for reliability in maintenance, retrofit, and replacement projects where exact specifications matter. Before you order, confirm fit and ratings—the NEF361000LS part number is the clearest reference for compatibility.

Key specifications

• Amperage: 1000 A
• Poles: 3‑Pole
• Voltage rating: 600 V
• Brand/Part: Square D, NEF361000LS

Why this model stands out

Designed for intensity, the NEF361000LS delivers synchronized protection across all three phases, helping to guard motors, drives, and distribution circuits from overloads and short circuits. The 3‑pole configuration ensures balanced tripping across lines, reducing the risk of equipment damage and unplanned downtime in industrial environments. Its form factor aligns with Square D panels that require NEF series devices, providing a seamless, reliable replacement path when upgrading or maintaining a critical section of your electrical system.

Ideal use cases

• Maintenance outages or routine panel servicing on high‑current, three‑phase feeders
• Retrofits where legacy gear needs to be upgraded to a standardized, high‑capacity protection device
• Replacement for worn or outdated breakers in 600V, 3‑phase distributions

Practical considerations

• Use the part number NEF361000LS as the primary compatibility reference to ensure a precise fit with your Square D panel and service requirements.
• Confirm that the surrounding wiring, lugs, and enclosure can safely accommodate a 1000A, 3‑pole device.
• Keep a replacement unit on hand for proactive maintenance and rapid recovery from interruptions.