ISC D4™ Work/Rescue Descender with Panic Brake


ISC D4™ Work/Rescue Descender with Panic Brake

Regular price $252.00
Shipping calculated at checkout.
Add to Wishlist
The 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:  200 mm (7 7/8″)
  • Width:  83 mm (3 1/4″)
  • Depth:  80 mm (3 1/8″)
  • Weight: 678 g (24 oz)
  • Rope Size: 10.5 mm – 11.5 mm Rope
  • Body Material:  Aluminum
  • Finish: Anodized
  • Standards:  EN 12841m, ANSI Z359, NFPA 1983
Have questions or concerns about your order? Please email us at Please note that we are not currently accepting returns or exchanges.


With over 45 years of combined rescue experience, our team is highly educated in rescue, safety and training services. We are committed to delivering a superior level of customer service and ensuring long term customer satisfaction. It is our mission to deliver the highest qualified, trained, and experienced professionals to your job-site when and where you need them most.

You may also like