NEF217100 | Circuit Breaker | 100A | 1-Pole | 277V

Meet NEF217100 — a robust industrial circuit breaker engineered for reliable overcurrent protection in 277V distribution systems. This 1-pole device handles up to 100A, making it an ideal choice for single-line circuits in demanding environments where precision and safety matter.

Designed for maintenance, retrofit, and replacement projects, it pairs with panels and systems that require an exact match to keep electrical networks safe and compliant. The NEF217100 is your best reference for compatibility—always confirm fit and ratings before ordering to ensure seamless integration.

Key specifications

• Amperage: 100A
• Poles: 1-Pole
• Voltage: 277V

Ideal for industrial feeders and branch circuits powered by 277V, the NEF217100 provides a straightforward replacement path in legacy panels and retrofit installations. By delivering dependable interruption of fault currents, it helps protect both equipment and personnel in fast-paced industrial settings.

Why this matters

• Accurate fit for 277V, 1-pole applications: Specifically designed to meet the demands of single-line circuits in commercial and industrial environments.
• 100A capacity: Adequate protection for moderate-to-large branch circuits while maintaining a compact form factor.
• Clear compatibility reference: The part number NEF217100 is the most reliable reference when verifying replacement compatibility.
• Retrofit-friendly: Well-suited for maintenance and upgrades where existing infrastructure requires precise matching specifications.

Practical guidance

• Verify system voltage is 277V and the circuit requires a 100A, 1-pole protection before purchase.
• Use with panels and bus configurations that document NEF217100 as the approved replacement to maintain code compliance.
• Install by a qualified professional and follow all relevant electrical codes and safety standards.

In sum, NEF217100 is a purpose-built solution for industrial networks needing reliable, straightforward overcurrent protection at 277V. When your project calls for a precise single-pole, 100A breaker, this part delivers the compatibility, reliability, and retrofit-ready practicality that professionals trust.