{"product_id":"mps-400a-p-kit-keystone-400w-pulse-start-metal-halide-ballast-kit-5-tap-cwa","title":"MPS-400A-P-KIT | Keystone 400W Pulse Start Metal Halide Ballast Kit 5-Tap CWA","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp\u003eThe Keystone MPS-400A-P-KIT is a 400W pulse start metal halide ballast kit designed for reliable operation of ANSI M135 and M155 lamps. With a 5-tap voltage input (120\/208\/240\/277\/480V) and a CWA circuit type, it ensures stable lamp performance in demanding environments. This complete kit includes the ballast, capacitor, ignitor, and mounting hardware for straightforward installation in commercial and industrial lighting applications.\u003c\/p\u003e\n\u003cp data-start=\"284\" data-end=\"574\" class=\"\"\u003e \u003c\/p\u003e\n\u003cp data-start=\"284\" data-end=\"574\" class=\"\"\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eKeystone Technologies\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePower Supplies\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMPS-400A-P-KIT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBallast Kits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLamp Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e400W Pulse Start Metal Halide (ANSI M135\/M155)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5-Tap (120\/208\/240\/277\/480V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCircuit Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eConstant Wattage Autotransformer (CWA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Factor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHigh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCapacitor Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e26µF, 330V, 90°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInsulation Class\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e180°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum Start Temp.\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-30°C (-22°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWinding Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCopper\/Aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFuse Recommendation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10A (120V), 7A (208V), 5A (240V\/277V), 3A (480V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.88” \/ 4.38”\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eListings \u0026amp; Approvals\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUL Recognized (RU, cRU), RoHS Compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e11.35 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003cspan style=\"font-size: 0.875rem;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eInformation About MPS-400A-P-KIT\u003c\/h4\u003e\n\u003cp\u003eThe MPS-400A-P-KIT is part of Keystone’s line of pulse start metal halide ballast kits built for durability and efficiency. It uses a constant wattage autotransformer (CWA) circuit for consistent lamp output across varying line conditions. Designed with copper\/aluminum windings and high-temperature insulation, the ballast supports long-term performance under heavy-duty operation. Suitable for high-intensity lighting in parking lots, warehouses, and roadway applications, it offers flexibility through its universal 5-tap voltage design and pre-wired capacitor and ignitor.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLamp Compatibility: Operates 400W pulse start metal halide lamps (ANSI M135\/M155).\u003c\/li\u003e\n\u003cli\u003e5-Tap Input Voltage: Supports 120\/208\/240\/277\/480V applications for maximum flexibility.\u003c\/li\u003e\n\u003cli\u003eCWA Circuit Type: Provides stable and efficient lamp operation across varying loads.\u003c\/li\u003e\n\u003cli\u003eHigh Power Factor: Ensures efficient energy use and reduced line losses.\u003c\/li\u003e\n\u003cli\u003ePre-Wired Components: Includes capacitor and ignitor for simplified installation.\u003c\/li\u003e\n\u003cli\u003eDurable Design: Copper\/aluminum windings with 180°C insulation class extend ballast life.\u003c\/li\u003e\n\u003cli\u003eSafety Compliance: UL Recognized for reliable performance in critical applications.\u003c\/li\u003e\n\u003cli\u003eComplete Kit: Includes mounting brackets, hardware, and installation guide.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe MPS-400A-P-KIT delivers the reliability and precision required for heavy-duty commercial and industrial lighting systems.\u003c\/p\u003e","brand":"Keystone","offers":[{"title":"Default Title","offer_id":49105183211776,"sku":"MPS-400A-P-KIT","price":248.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/MPS-400A-P-KIT_10_2.jpg?v=1785542056","url":"https:\/\/alotechparts.com\/products\/mps-400a-p-kit-keystone-400w-pulse-start-metal-halide-ballast-kit-5-tap-cwa","provider":"Alo Tech Solutions","version":"1.0","type":"link"}