NEF431020 20A 3P 480V Circuit Breaker, Bolt-On | AmpState

NEF431020 is a bolt-on circuit breaker built for everyday electrical protection in panelboards, load centers, and distribution networks. With a 20 A rating and a 3-pole design for 480V three-phase systems, this unit delivers dependable interruption to guard wiring and equipment from faults and overloads.

Designed with replacement projects in mind, it’s ideal for stocking spares to keep your bill of materials aligned to the original part number. Keeping the BOM consistent simplifies maintenance workflows and reduces downtime when a component needs swapping.

• Bolt-On mounting for quick, secure installation in compatible enclosures.
• Three-pole, 480V design suited to three-phase distribution and higher-voltage circuits.
• Panelboard and load center compatibility engineered to drop into standard electrical panels and distribution gear.
• BOM-aligned spare helps you stock precisely what your system requires, minimizing mismatches during service.
• Compatibility support from AmpState if you’re unsure about fit or cross-reference—just message us and we’ll help confirm the correct part.

Use cases and scenarios

• Industrial facilities performing routine maintenance on 480V systems, such as manufacturing lines, motor control centers, and distribution panels.
• Modernizing or repairing legacy installations where the original part number NEF431020 is specified for seamless replacement.
• Maintain uptime by keeping a ready spare on hand for quick replacement during panel servicing or fault events.

Practical tips for installers

• Verify that your panelboard accepts bolt-on, 3-pole, 480V breakers and that bus configuration matches this unit.
• Cross-check the original part number (NEF431020) to ensure accurate BOM alignment and warranty continuity.
• When in doubt about compatibility, reach out to AmpState for a quick fit confirmation before purchase.

Ready to secure reliable protection with the NEF431020? AmpState has this 20 A, 3P, 480V bolt-on circuit breaker available and ready to ship. If you need help matching a part number or confirming compatibility, Send us a message and we’ll help you confirm fit.