ISC D-4 Auto-Lock with Panic Feature Descending Device

RSRP880 D4 Work Rescue Descender
Approved standards EN12841, ANSI Z359, NFPA 1983- meets the requirements of EN341

5kN Slip load

Max User Weight > 240kg (500lbs)

The NEW D4 Work/Rescue Descender features a unique and innovative cam action, which offers precise control at slow or fast speeds. The progressive cam works by way of one cam operating inside another cam. The D4 has a 240kg (500lbs) Working load limit which means it is suitable for two-man rescue without the need for the creation of extra friction. The handle mechanism is designed to rotate through 360º, making its use easier and simpler. The handle itself is made from aluminum rather than plastic and is coated in a specially chosen paint which provides extra grip. Cleverly, the handle rotation is accompanied by audible clicks, which help the user identify the correct position of the handle.

Height (mm) 140
Height (inches) 5 1/2
Width (mm) 82
Width (inches) 3 1/4
Thickness (mm) 98
Thickness (inches) 3 7/8
Weight (grams) 655
Weight (ounces) 23
Compatible with rope diameter (mm) 10.5-11.5mm (7/16″)
Panic brake Yes
Number of persons 2
Body material Aluminum
Cam material Stainless Steel
Body finish Anodized
(MBS) Minimum Breaking Strength (kN) 16

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