Federal Pioneer NB240 - 40 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Meet the Federal Pioneer NB240 — a 40A, 240V, 2-pole bolt-on molded case circuit breaker designed to guard both people and equipment by delivering precise branch circuit protection in panelboards and loadcenters. Built for residential, commercial, and light industrial environments, this breaker combines a secure mounting method with dependable trip performance to keep electrical systems safe and running smoothly.

Key advantages

• Secure bolt-on mounting: creates a rigid, vibration-resistant bus connection that stays tight in panels subjected to movement, vibration, or frequent door openings.
• Thermal-magnetic trip unit: offers stable, repeatable protection by responding to overloads with a controlled thermal delay and to short circuits with an immediate magnetic trip.
• OEM compatibility: engineered to drop into matching Federal Pioneer load centers and panelboards, ensuring a seamless fit and reliable performance.
• 2-pole, 40A at 240V: ideal for protecting 240V branch circuits while preserving space efficiency in standard enclosures.
• Durable molded-case construction: designed to withstand practical electrical environments across homes, offices, and light industrial settings.

Specifications at a glance

• Manufacturer: Federal Pioneer
• Part Number: NB240
• Type: Thermal-magnetic molded case circuit breaker
• Amperage: 40A
• Voltage: 240V
• Poles: 2
• Mounting: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use cases

• Residential upgrades: protect circuits feeding 240V appliances like central air handling units, water heaters, or large subpanels in home electrical systems.
• Commercial panel installations: reliable, vibration-tolerant protection in offices, retail spaces, and light manufacturing environments.
• Light industrial enclosures: secure mounting and dependable tripping behavior in environments with equipment movement or mild vibration.

Installation and compatibility considerations

To ensure optimal performance, install the NB240 in compatible Federal Pioneer panelboards designed for bolt-on breakers. Verify that your panel supports bolt-on devices and keep bus connections clean and free of damage. For best results, follow the panel manufacturer’s installation torque guidelines and pair this breaker with appropriately rated conductors and enclosure specifications. This device is purpose-built for reliable branch-circuit protection within the Federal Pioneer ecosystem, reducing replacement hassles and keeping upgrades straightforward.

Why this NB240 matters

Choosing the NB240 means investing in a protection solution that prioritizes a secure mechanical connection and predictable electrical behavior. The bolt-on design minimizes looseness from vibration or panel activity, while the thermal-magnetic trip unit provides clear, repeatable responses to overloads and faults. If you’re upgrading older gear or wiring a new panel in a space that values reliability and compatibility, the NB240 delivers a purpose-built fit that aligns with your existing Federal Pioneer infrastructure.