Federal Pioneer NB3P90 - 90 A, 240 V, 3-Pole Bolt-On Circuit Breaker | AmpState

The Federal Pioneer NB3P90 is a purpose-built 90 A, 240 V, 3-pole bolt-on molded case circuit breaker designed to safeguard your panelboards and loadcenters. Built for reliability in demanding environments, this breaker delivers consistent overcurrent and short‑circuit protection where it’s needed most.

Why the NB3P90 stands out

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection, helping maintain performance in panels exposed to movement or vibration.
• Thermal-magnetic trip unit delivers stable, repeatable protection — responding quickly to short circuits while minimizing nuisance trips on normal load changes.
• OEM-compatible design is ready to integrate with matching Federal Pioneer, and other OEM loadcenters and panelboards that support bolt-on breakers.
• Versatile for multiple settings ideal for residential, commercial, and light industrial applications where robust branch‑circuit protection is essential.

The NB3P90 is your dependable choice when you need a proven, drop-in replacement that won’t compromise safety or performance in critical distribution panels.

Technical at a glance

• Manufacturer: Federal Pioneer
• Part Number: NB3P90
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 90 A
• Voltage Rating: 240 V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use cases and practical applications

Use the NB3P90 in panelboards and loadcenters that require solid 3‑phase distribution at 240 V. It’s well-suited for:

• Three‑phase feeders in light commercial installations, such as offices, small retail spaces, and multifamily buildings
• Residential subpanels and service distribution where reliable bolt-on breakers are preferred for secure mounting
• Retrofits and upgrades in existing panels that specify bolt-on molded‑case breakers for enhanced vibration resistance and long-term durability

Installation and safeguarding tips

For best results, pair this breaker with a compatible OEM loadcenter or panelboard to ensure proper fit, torque, and trip coordination. Verify that the panel’s rating matches the NB3P90’s 90 A, 3‑pole, 240 V specifications. Regularly inspect connections for signs of wear or loosening, especially in environments with movement or temperature cycling.

If you’re sourcing a dependable, industry‑tested solution for demanding electrical distribution, the Federal Pioneer NB3P90 from AmpState delivers precise protection, solid mounting, and long‑term reliability you can trust in both new installations and upgrades.