NB3100 100A 3P Circuit Breaker, Bolt-On | AmpState

The NB3100 is a 3-pole, 100 A bolt-on circuit breaker built for reliable protection in panelboards, load centers, and electrical distribution systems. With a direct part-number match in mind, this breaker is an ideal choice when accuracy matters—perfect for maintenance teams, panel builders, and spare inventory where substitutions aren’t acceptable.

Designed for quick, secure installation, the bolt-on mounting option provides a solid, conductor-friendly connection that speeds up service swaps and reduces the risk of loose contacts over time. The 3-pole configuration supports standard 3-phase applications, delivering coordinated protection across all three conductors for balanced system safety.

• Amperage: 100 A
• Poles: 3
• Mounting: Bolt-On
• Product Type: Circuit Breaker
• Manufacturer: Brand Not Specified
• Part Number: NB3100

AmpState offers this NB3100 as a readily available option for professional projects and inventory management. If you’re unsure about fit, we’re ready to help—send us a message to confirm compatibility or to verify a direct part-number match with your specific panel or distribution setup.

Why choose the NB3100 for your electrical distribution needs

Precise compatibility matters in real-world maintenance and construction. The NB3100 provides a straightforward, exact-part replacement path for panelboards and load centers that require a 3-pole, 100 A bolt-on breaker. Its bolt-on design minimizes installation time and ensures a robust electrical connection, helping to reduce nuisance trips and downtime in service environments.

Who benefits most from this breaker:

• Maintenance teams performing routine replacements where part-number certainty saves planning time
• Panel builders seeking a dependable 3-phase protection solution with predictable fit
• Inventory managers stocking standardized spares for critical electrical infrastructure

Practical tips for optimal use

• Match the NB3100 to your panel’s listed part numbers to ensure seamless replacement without reconfiguration
• When in doubt about fit, provide your panel model and existing breaker part number for a quick compatibility check
• Store spares in a controlled environment to maintain breaker performance and longevity

In short, the NB3100 100A 3P Bolt-On Circuit Breaker from AmpState is a purpose-built solution for dependable overcurrent protection in professional electrical installations. Its precise part-number alignment, robust bolt-on mounting, and 3-phase suitability make it a compelling choice for those who value exactness and speed in maintenance and construction projects.