{"product_id":"square-d-qmb30r-30a-3p-600v-safety-switch","title":"Square D QMB30R 30A 3P 600V Safety Switch, Fusible | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Square D QMB30R is a fusible, three-pole safety switch engineered for everyday electrical work. Designed for equipment disconnect and isolation at the point of use, this 30 A, 3P, 600 V unit delivers reliable protection where you need clean power shutoff and quick, safe maintenance access. It’s a smart pick for workers who value a direct part-number match and dependable performance in the field.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 30 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFusible:\u003c\/strong\u003e Fusible safety switch for integrated overcurrent protection\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Square D\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e QMB30R\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIdeal for maintenance teams, panel builders, and spare-inventory strategies where a direct part-number match matters, the QMB30R combines straightforward installation with robust safety features. Use it to disconnect and isolate equipment at the point of use in three-phase systems, motors, drives, and control panels where predictability and rapid fault isolation are essential.\u003c\/p\u003e \u003ch3\u003eWhat makes the QMB30R stand out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eIntegrated protection and isolation:\u003c\/strong\u003e A fusible disconnect switch that provides both ground-breaking isolation and immediate overcurrent protection in one compact unit.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-phase readiness:\u003c\/strong\u003e 3-pole configuration tailored for balanced three-phase circuits common in manufacturing and industrial setups.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIndustry-standard reliability:\u003c\/strong\u003e Square D’s engineering lineage offers consistent performance and compatibility with common control environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eEasy procurement:\u003c\/strong\u003e Available from AmpState, with support to verify fit and compatibility for your exact installation.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIf you’re unsure about fit, AmpState offers assistance to confirm compatibility with your panel or system—just send a quick note and we’ll help verify that QMB30R is the right match for your application. Consider these practical tips when planning installation: verify the fuse type and rating required for your load, ensure the circuit voltage does not exceed 600 V, and follow all local electrical codes during wiring and maintenance.\u003c\/p\u003e \u003cp\u003eWho should consider the QMB30R? Teams responsible for reliable equipment shutdowns, control panel fabricators seeking a proven fusible disconnect, and facilities with spare parts inventory that benefits from consistent part-number alignment. In short, it’s a purpose-built solution for safe, efficient disconnection in three-phase, high-voltage environments.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46411023384738,"sku":"QMB30R","price":10.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_83963f7f-600e-419f-90c6-e7677089642b.png?v=1765492973","url":"https:\/\/www.ampstate.com\/products\/square-d-qmb30r-30a-3p-600v-safety-switch","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}