{"product_id":"m50asr325","title":"M50ASR325 - 400 Amp Panel Switch","description":"\u003cp\u003e\u003cstrong\u003eM50ASR325 - 400 Amp Panel Switch\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe M50ASR325 brings heavy-duty reliability to industrial power distribution. Designed as a 3‑pole bolt-in panel switch, it’s built to manage demanding electrical loads up to 400 Amperes at 600 Volts AC or less. Whether you’re upgrading a commercial control panel or outfitting a new industrial setup, this breaker delivers dependable fuse protection and long-lasting performance — so your equipment stays safe and operations stay steady.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh‑capacity power handling:\u003c\/strong\u003e With a 400 A rating, this breaker accommodates large electrical loads, making it ideal for industrial machinery, HVAC systems, and main service panels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3‑pole, 600 V AC service:\u003c\/strong\u003e Provides balanced phase protection for three-phase systems; a useful choice for factories, warehouses, and commercial buildings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBolt‑in “M50” frame design:\u003c\/strong\u003e Simple to install in compatible panels; the bolt-in configuration ensures a secure fit with easy replacement and maintenance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFusible protection with Class RK1 \u0026amp; RK5 compatibility:\u003c\/strong\u003e Accepts widely available RK‑style fuses, letting you tailor short-circuit protection precisely to your installation requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle‑unit, compact construction:\u003c\/strong\u003e Despite handling significant power, it stays streamlined for efficient panel use without wasting space.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable build for long service life:\u003c\/strong\u003e Constructed to withstand frequent switching and high currents while maintaining consistent performance under stress.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3‑Pole\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Rating:\u003c\/strong\u003e 400 Amperes\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e Up to 600 V AC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame Type:\u003c\/strong\u003e M50\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBreaker Style:\u003c\/strong\u003e Bolt‑in, fusible single unit\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Type Accepted:\u003c\/strong\u003e Class RK1 \u0026amp; RK5\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (approx.):\u003c\/strong\u003e Height: 15.0\"\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping Weight:\u003c\/strong\u003e 23.5 lb\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial Compliance and Certifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustry Standards:\u003c\/strong\u003e The M50ASR325 is built to meet standard industrial electrical codes and safety requirements, ensuring that fuse-protection circuits are executed according to accepted practices.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Compatibility:\u003c\/strong\u003e Its compatibility with Class RK‑rated fuses makes it suitable for installations requiring UL-listed or code-compliant overcurrent protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting and Compliance:\u003c\/strong\u003e The bolt-in M50 frame helps ensure secure, code-friendly mounting, while the fusible configuration enables precise short-circuit protection and compliance with OSHA, NEC, or other regional standards when fuses are sized appropriately.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWhere It Works Best\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial facilities \u0026amp; factories — Ideal for powering heavy equipment, conveyors, motors, and compressors without overloading circuits.\u003c\/li\u003e\n\u003cli\u003eCommercial buildings with three-phase service — Perfect for HVAC systems, large lighting panels, or main service distribution.\u003c\/li\u003e\n\u003cli\u003eRetrofit or panel upgrades — Bolt-in design and standard frame size make it an efficient replacement in older installations requiring increased amperage or updated fuse protection.\u003c\/li\u003e\n\u003cli\u003eCustom control panels \u0026amp; switchgear builds — Offers a dependable building block for systems needing precise overcurrent protection with RK-class fuses.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\n\u003cdiv\u003e\n\u003cblockquote\u003e\n\u003cp style=\"font-size: 12px;\"\u003e\u003cem\u003eUse of Original Equipment Manufacturer (OEM) trademarks, names, and logos is for informational and identification purposes only. This does not imply any affiliation, sponsorship, endorsement, or approval by the original equipment manufacturer. All trademarks and registered trademarks are the property of their respective owners.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"CUTLER HAMMER","offers":[{"title":"Refurbished","offer_id":51530375004459,"sku":"M50ASR325  [R]","price":0.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/store.circuitbreakersuperstore.com\/products\/m50asr325","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}