{"product_id":"qmqb3332c-30a-240v-3-phase-fusible-switch-nema-1","title":"QMQB3332C - 30A, 240V, 3-Phase, Fusible, Switch, NEMA 1","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eQMQB3332C\u003c\/strong\u003e is a compact, rugged fusible switch crafted for reliable on\/off isolation and integrated overcurrent protection in demanding industrial and commercial environments. With a 30A rating at 240V and true 3-phase capability, this unit is built to keep critical equipment safe while simplifying panel layouts.\u003c\/p\u003e \u003cp\u003eDesigned to protect and streamline your electrical distribution, the QMQB3332C combines a switch and fusing in a single, maintainable package. Its NEMA 1 enclosure is suited for indoor, general-purpose installations where dust protection and basic ingress control are the priority, making it a practical choice for panelboards, motor disconnects, and branch circuits.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e QMQB3332C\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 30A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 240V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePhase:\u003c\/strong\u003e 3-Phase\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNEMA Rating:\u003c\/strong\u003e NEMA 1\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFusible:\u003c\/strong\u003e Yes (fusible switch)\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this fusible switch stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eIntegrated protection\u003c\/strong\u003e combines switching and fusing in one compact unit, reducing footprint and simplifying maintenance compared to separate disconnect and fuse solutions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eTargeted for motor and branch circuit protection\u003c\/strong\u003e—perfect for motor disconnects in indoor panels and distribution circuits where quick, reliable isolation is essential.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRugged yet maintainable\u003c\/strong\u003e design supports routine fuse replacements and safe servicing without sacrificing uptime.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-Phase 240V capability\u003c\/strong\u003e aligns with common commercial and light industrial motor loads, delivering consistent performance across three electrical phases.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMotor disconnects in indoor panelboards and electrical rooms\u003c\/li\u003e \u003cli\u003eBranch circuit protection where space is constrained and a compact, maintainable fusible solution is preferred\u003c\/li\u003e \u003cli\u003eIndoor 3-phase distribution circuits requiring reliable isolation with integrated overcurrent protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and practical considerations\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eConfirm fuse type and rating compatibility with the load and wiring diagram for your 3-phase 240V system\u003c\/li\u003e \u003cli\u003eEnsure the enclosure environment matches NEMA 1 expectations (indoor, general-purpose protection)\u003c\/li\u003e \u003cli\u003eUse standard lockout\/tagout procedures during maintenance and fuse replacement to safeguard personnel\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWho benefits most\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eFacilities engineers and electrical contractors seeking a streamlined, maintainable protection solution\u003c\/li\u003e \u003cli\u003eManufacturing and processing facilities with indoor 3-phase motors and panelboard assemblies\u003c\/li\u003e \u003cli\u003eSystems where quick, reliable isolation is as important as overcurrent protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith the QMQB3332C, you get a dedicated, compact fusible switch that simplifies wiring, enhances safety, and keeps your 240V, 3-phase systems running smoothly. It’s the practical choice when you need dependable isolation plus built-in protection in a single, maintainable package.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp-State","offers":[{"title":"Default","offer_id":46390329639074,"sku":"QMQB3332C","price":597.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/fusible_disconnect_generic_19d6f2c2-d1c7-4f1a-96a6-2b592ce35905.png?v=1765368056","url":"https:\/\/www.ampstate.com\/products\/qmqb3332c-30a-240v-3-phase-fusible-switch-nema-1","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}