{"product_id":"isc-d4-work-rescue-descender","title":"D4 Work Rescue Descender","description":"\u003ch1\u003eISC D4 Work\/Rescue Descender RP880\u003c\/h1\u003e\n\u003cp\u003eThe ISC D4 Work\/Rescue Descender RP880 is a professional double-stop descender designed for rope access, rescue, work positioning and emergency hauling applications. Built for demanding environments, the D4 combines controlled descent, auto-locking security and smooth rope handling for users working at height.\u003c\/p\u003e\n\u003cp\u003eThe D4 features an auto-lock function that activates when the operator releases the handle, alongside a panic brake that is designed to remain controlled and predictable during normal use. Its progressive cam action allows precise control at both slow and faster descent speeds, making it a versatile choice for professional work and rescue systems.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eISC D4 Work\/Rescue Descender RP880\u003c\/li\u003e\n\u003cli\u003eDouble-stop descender with auto-lock function\u003c\/li\u003e\n\u003cli\u003eAuto-lock activates when the handle is released\u003c\/li\u003e\n\u003cli\u003ePanic brake designed for controlled operation\u003c\/li\u003e\n\u003cli\u003eProgressive cam action for smooth speed control\u003c\/li\u003e\n\u003cli\u003eSuper-hard solid stainless steel cam\u003c\/li\u003e\n\u003cli\u003eHighly wear and corrosion resistant\u003c\/li\u003e\n\u003cli\u003eSuitable for rope access, rescue and work positioning\u003c\/li\u003e\n\u003cli\u003eCan be used for smooth ascending or emergency hauling in suitable systems\u003c\/li\u003e\n\u003cli\u003eRated load of 240kg \/ 529lb\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDouble-Stop Safety Function\u003c\/h2\u003e\n\u003cp\u003eThe ISC D4 is designed with a double-stop function, helping provide controlled descent performance. If the operator releases the handle, the auto-lock function engages to help stop rope movement.\u003c\/p\u003e\n\u003ch2\u003eProgressive Cam Control\u003c\/h2\u003e\n\u003cp\u003eThe D4 uses an innovative progressive cam action, where one cam operates inside another. This design provides smooth, precise control across slow and faster descent speeds.\u003c\/p\u003e\n\u003ch2\u003eDurable Stainless Steel Cam\u003c\/h2\u003e\n\u003cp\u003eThe cam is made from super-hard solid stainless steel, providing excellent wear resistance and corrosion resistance for professional rope access and rescue use.\u003c\/p\u003e\n\u003ch2\u003eRescue \u0026amp; Hauling Capability\u003c\/h2\u003e\n\u003cp\u003eThe D4 can be back-fed easily, allowing it to be used for smooth ascending or emergency hauling when configured as part of an appropriate 2:1 Z-rig system.\u003c\/p\u003e\n\u003ch2\u003eHigh Rated Load\u003c\/h2\u003e\n\u003cp\u003eWith a rated load of 240kg \/ 529lb, the D4 is a true work and rescue descender suitable for demanding professional applications.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #ddd; text-align: left; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 10px;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 10px;\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eProduct Name\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eISC D4 Work\/Rescue Descender RP880\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eDevice Type\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eDouble-stop work\/rescue descender\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eCam Material\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eSolid stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eCompatible Rope Range\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eTypically 10.5mm \/ 11mm ropes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eRated Load\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e240kg \/ 529lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eMinimum User Weight\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e60kg \/ 132lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eStandards\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eCE, NFPA T, ANSI Z359.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eIdeal For\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional rope access work\u003c\/li\u003e\n\u003cli\u003eRescue and emergency rope systems\u003c\/li\u003e\n\u003cli\u003eWork positioning applications\u003c\/li\u003e\n\u003cli\u003eControlled descent and lowering\u003c\/li\u003e\n\u003cli\u003eEmergency hauling in suitable Z-rig systems\u003c\/li\u003e\n\u003cli\u003eUsers needing a durable double-stop descender\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eExplore More\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/en-int\/collections\/ascenders-descenders\"\u003eDescenders \u0026amp; Ascenders\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-int\/collections\/climbing-equipment-main-menu\"\u003eClimbing Equipment\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-int\/collections\/climbing-ropes\"\u003eClimbing Ropes\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-int\/collections\/carabiners-connectors\"\u003eCarabiners \u0026amp; Connectors\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.gustharts.com\/blogs\/news\"\u003eArborist Guides \u0026amp; Advice\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eBest For\u003c\/h2\u003e\n\u003cp\u003eThe ISC D4 Work\/Rescue Descender RP880 is best suited to rope access and rescue professionals who need a controlled, durable and high-capacity descender for demanding work at height.\u003c\/p\u003e\n\u003ch2\u003eWhy Choose the ISC D4 Descender?\u003c\/h2\u003e\n\u003cp\u003eWith its double-stop function, progressive cam action, stainless steel cam and 240kg rated load, the ISC D4 delivers dependable control for professional work and rescue rope systems.\u003c\/p\u003e","brand":"ISC","offers":[{"title":"Default Title","offer_id":45718031925492,"sku":"IS-RP880A1","price":196.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0690\/6603\/1348\/files\/isc-d4-work-rescue-descender-high-performance-rope-access-rescue-gear.jpg?v=1756820553","url":"https:\/\/www.gustharts.com\/en-int\/products\/isc-d4-work-rescue-descender","provider":"Gustharts","version":"1.0","type":"link"}