{"product_id":"federal-pioneer-qmqb4036-400a-600v-3-pole-panelboard-switch","title":"Federal Pioneer QMQB4036 - 400A, 600V, 3-Pole Panelboard Switch \/ Switchboard Unit | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Federal Pioneer QMQB4036 is a purpose-built fusible panelboard switch designed for reliable power distribution in lighting and distribution panelboards. With a robust 400 A rating at 600 V and a 3-pole configuration, this unit is built to integrate seamlessly into commercial and light industrial electrical systems, delivering coordinated protection right at the source.\u003c\/p\u003e \u003ch2\u003eWhy the QMQB4036 matters in your electrical distribution\u003c\/h2\u003e\n\u003cp\u003eIn environments where uninterrupted, well-coordinated power is non-negotiable, the QMQB4036 provides dependable load switching for three-phase feeders while working in concert with upstream protection devices. Its fusible design isolates faults at their origin, helping to protect downstream equipment and reduce outage duration when paired with the correct fuse class. This means fewer surprises during startup, smoother maintenance windows, and a clearer protection hierarchy across your panelboard network.\u003c\/p\u003e \u003ch3\u003eKey specifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 400 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 600 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e QMQB\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Federal Pioneer \/ Federal Pacific\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e QMQB4036\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Fusible panelboard switch for lighting and distribution panelboards\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eNew panelboard installations in commercial buildings where three-phase distribution is standard\u003c\/li\u003e \u003cli\u003eUpgrades or retrofits of lighting and power distribution in factories, warehouses, or municipal facilities\u003c\/li\u003e \u003cli\u003eService entrances and main distribution panels that require coordinated protection with upstream fusing\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat sets the QMQB4036 apart\u003c\/h3\u003e\n\u003cp\u003eUnlike generic switches, the QMQB4036 is a dedicated fusible panelboard switch built for lighting and distribution panelboards. Its three-pole design supports balanced three-phase systems, while the integrated fusible protection creates a clear, upstream-downstream protection path. Consolidating switching and protection into a single unit reduces external components, simplifies maintenance, and clarifies protection coordination across the entire distribution chain.\u003c\/p\u003e \u003ch3\u003eInstallation and best practices\u003c\/h3\u003e\n\u003cp\u003eFor optimal performance, pair the QMQB4036 with the specified upstream protection and fuse class for your panelboard and local codes. Confirm compatibility with the QMQB series, ensure the three-phase wiring aligns with your feeder design, and verify secure mechanical seating and electrical connections to maintain long-term reliability.\u003c\/p\u003e \u003ch3\u003ePractical benefits and outcomes\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eFaster fault isolation by using a fusible design that traps faults at the source\u003c\/li\u003e \u003cli\u003eSimplified protection coordination with a single, purpose-built unit\u003c\/li\u003e \u003cli\u003eClear compatibility with lighting and distribution panelboard architectures typical in commercial and light industrial settings\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThe QMQB4036 is a targeted solution for facilities managers, electrical contractors, and specifiers who demand dependable, coordinated protection in three-phase panelboard applications. It’s the trusted choice when you need a dedicated fusible switch that aligns with standard panelboard practices and local safety requirements.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Federal Pioneer \/ Federal Pacific","offers":[{"title":"Default Title","offer_id":46362090930338,"sku":"QMQB4036","price":1110.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/panel_mount_switches_p1_d7c02236-f098-4078-9ea9-116830324a1f.png?v=1764709839","url":"https:\/\/www.ampstate.com\/products\/federal-pioneer-qmqb4036-400a-600v-3-pole-panelboard-switch","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}