{"product_id":"40440-300-51","title":"40440-300-51 - Allen Bradley Contact Kit","description":"\u003cp\u003e\u003cstrong\u003e40440-300-51 - Allen Bradley Contact Kit\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRestore optimal performance to your motor control systems with the Allen-Bradley 40440-300-51 contact kit—an OEM-grade solution for NEMA Size 4 starters and contactors in Allen-Bradley Bulletin 500, 505, 509, and 520 systems. Designed by Rockwell Automation, this single-pole kit includes all essential replacement components: movable contact, front and rear stationary contacts, spring, and mounting hardware. Perfect for maintaining 3-phase motor control systems rated up to 135 A at 600 VAC, this kit delivers reliable, high-performance switching and reduces costly downtime.\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\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\u003eOEM-Grade Replacement:\u003c\/strong\u003e Exact fit for NEMA Size 4 contactors in Allen-Bradley Bulletins 500, 505, 509, and 520\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Current Rating:\u003c\/strong\u003e Supports up to 135 A continuous motor load at 600 VAC (Size 4 equivalent)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Kit:\u003c\/strong\u003e Includes movable contact, front and rear stationary contacts, spring, and all necessary mounting hardware\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast Maintenance:\u003c\/strong\u003e Designed for easy field replacement, minimizing system downtime and labor costs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrosion-Resistant Construction:\u003c\/strong\u003e Long-lasting durability in industrial motor control environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eKit Type:\u003c\/strong\u003e Single-pole contact replacement kit\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContactor Compatibility:\u003c\/strong\u003e Bulletin 500, 505, 509, 520 (NEMA Size 4)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoles\u003c\/strong\u003e: 1 Pole\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Current:\u003c\/strong\u003e Approx. 135 A (Size 4 contactor rating)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Voltage:\u003c\/strong\u003e Up to 600 VAC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Parts:\u003c\/strong\u003e Movable contact, front stationary contact, rear stationary contact, spring, screws, and hardware\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\u003eStandards:\u003c\/strong\u003e Conforms to NEMA ICS‑2 motor control standards\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuild Quality:\u003c\/strong\u003e Manufactured or remanufactured to Allen-Bradley specifications for fit, form, and function\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistribution:\u003c\/strong\u003e Available through Rockwell Automation and trusted aftermarket suppliers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSuitability and Applications\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdeal For:\u003c\/strong\u003e Service technicians, OEMs, and industrial maintenance teams\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication Environments:\u003c\/strong\u003e HVAC systems, water treatment, conveyors, pumps, and compressors\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBenefits:\u003c\/strong\u003e Cost-effective way to extend contactor life without replacing full assemblies\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCount on the Allen-Bradley 40440-300-51 Contact Kit to restore high-current motor starters with dependable, OEM-verified performance.\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\n\u003cdiv\u003e\n\u003cblockquote\u003e\n\u003cp style=\"font-size: 12px;\"\u003e\u003cem\u003eThis is a brand-new, aftermarket replacement contact kit, not an original OEM product. It is specifically designed to function as a compatible replacement. Use of any OEM part numbers is for reference and identification only. No affiliation or endorsement is implied.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 12px;\"\u003e\u003cem\u003eAllen-Bradley® is a registered trademark of Rockwell Automation, Inc. Products sold are surplus, used, or refurbished and are \u003cstrong\u003eNOT \u003c\/strong\u003esupplied by Rockwell Automation.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"ALLEN BRADLEY","offers":[{"title":"After-Market - New in Box","offer_id":50476246434091,"sku":"AB54LC","price":750.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/store.circuitbreakersuperstore.com\/products\/40440-300-51","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}