{"product_id":"federal-pioneer-nb50-50a-120v-1-pole-bolt-on-circuit-breaker","title":"Federal Pioneer NB50 - 50 A, 120 V, 1-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Federal Pioneer NB50—a purpose-built, 50A, 120V, 1-pole bolt-on molded-case circuit breaker crafted for dependable branch circuit protection in panelboards and loadcenters. Designed to withstand vibration and harsh electrical environments, this breaker delivers consistent, reliable protection where it matters most.\u003c\/p\u003e \u003ch3\u003eKey benefits that set the NB50 apart\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e for a rigid, vibration-resistant bus connection that stays tight over time.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection across varying temperatures and load conditions, reducing nuisance trips and ensuring predictable performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-ready compatibility\u003c\/strong\u003e designed to work with matching Federal Pioneer load centers and panelboards for a seamless, dependable fit.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application\u003c\/strong\u003e ideal for residential, commercial, and light industrial environments where 50A at 120V is the right protection level.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this NB50 matters for your electrical system\u003c\/h3\u003e\n\u003cp\u003eWhen a circuit needs decisive protection against overloads and short circuits, the NB50 delivers. The bolt-on design simplifies replacement or upgrades in compatible panelboards, while the molded-case construction provides robust interrupting capabilities in compact form. The thermal-magnetic trip mechanism reacts quickly to overcurrent events, helping safeguard wiring, devices, and occupants without sacrificing long-term reliability.\u003c\/p\u003e \u003ch3\u003eUse cases and ideal applications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eResidential panelboards and load centers requiring a reliable 50A, 120V protective device on a single-pole circuit\u003c\/li\u003e \u003cli\u003eSmall commercial distributions where a durable, field-serviceable bolt-on breaker is preferred\u003c\/li\u003e \u003cli\u003eLight industrial setups with panelboard configurations that rely on consistent, repeatable trip characteristics\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical specifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Federal Pioneer\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e NB50\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Thermal-magnetic molded-case circuit breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage Rating:\u003c\/strong\u003e 50A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 120V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of Poles:\u003c\/strong\u003e 1\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting Style:\u003c\/strong\u003e Bolt-on\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for use with matching OEM load centers and panelboards\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eCompatibility, installation notes, and practical tips\u003c\/h3\u003e\n\u003cp\u003eThe NB50 is built to slot into compatible Federal Pioneer panelboards and loadcenters, enabling a straightforward swap or upgrade without compromising bus integrity or protection performance. Its bolt-on mounting helps ensure a solid, vibration-resistant connection, which is particularly beneficial in environments subject to movement or mechanical vibration. For best results, pair this breaker with an appropriately sized matching panelboard and follow standard electrical best practices during installation and testing.\u003c\/p\u003e \u003cp\u003eIf you’re sourcing a proven 50A, 120V solution for a single-pole circuit in a Federal Pioneer ecosystem, the NB50 stands out for its combination of rigid mounting, stable thermal-magnetic protection, and OEM-ready compatibility.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349675233442,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/fpe_breaker_and_panel_dad95cfd-820a-4991-b6e8-78b1f5a50b1b.png?v=1764153577","url":"https:\/\/www.ampstate.com\/products\/federal-pioneer-nb50-50a-120v-1-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}