NF631100 | Circuit Breaker | 100A | 3-Pole | 600V | 18kA | Bolt-On

Meet the NF631100, a robust industrial circuit breaker designed for maintenance, retrofit, and replacement tasks where exact specifications matter. This 3-Pole, 100A unit delivers reliable protection for three-phase systems up to 600V with an 18kA interrupting rating, all in a bolt-on configuration for secure field installation.

Engineered for durability in demanding environments, the NF631100 bolts onto compatible panelboards, delivering quick, secure installation that reduces downtime during servicing or upgrades. The 3-pole design ensures balanced protection across all three phases, helping prevent arc faults and equipment damage in motor loads, MCCs, and industrial control circuits.

Key specifications you’ll rely on:

• Amperage: 100A
• Poles: 3-Pole
• Voltage: 600V
• Breaking/Interrupting rating: 18kA
• Mounting: Bolt-On
• Part number: NF631100 (best reference for compatibility)

Why choose a bolt-on NF631100 for your project?

• Compatibility-focused: The part number is your fastest verification tool when matching existing gear, panels, or retrofit kits. Always confirm fit and ratings before ordering to avoid downtime.
• Replacement-ready: When an older breaker in a 3-phase system needs swapping, this unit provides a direct bolt-on replacement that preserves wiring configurations and enclosure layout.
• Industrial-grade protection: With an 18kA interrupting capacity, it can safely interrupt high-energy faults, minimizing damage to downstream equipment such as motors, drives, and conveyors.
• Reliable performance: Built for repeated engagement and protection in harsh environments, supporting ongoing facility operations with minimal maintenance.

Ideal for:

• Maintenance technicians performing panel retrofits or stocking spare parts for service programs.
• Facility engineers updating old switchgear to meet current protection standards.
• Panel builders seeking a dependable, bolt-on circuit breaker that aligns with standard 3-phase, 600V systems.

Practical tips for best results:

• Always verify compliance: cross-check the panel’s catalog number, bus design, and rating before purchasing NF631100.
• Inspect mounting dimensions and terminal connections to ensure a clean, secure fit during bolt-on installation.
• Maintain a small inventory of common trip ratings (like 18kA) and amperage settings for quick-response replacements in critical 3-phase plants.