D4 Pro Work Rescue Descender
SKU: ISC | IS-RP881B1
- Regular price
- £148.71 Ex VAT
- £178.45 Inc VAT
- RRP: £169.95 Ex VAT
- Sale price
- £148.71 £148.71 Ex VAT
- Regular price
-
- £178.45 £178.45 Inc VAT
- Was £169.95 Ex VAT
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Product information & specifications
ISC D4PRO Work/Rescue Descender
The ISC D4PRO Work/Rescue Descender is a professional rope access and rescue descender designed for users who want the proven performance of the standard ISC D4, but without an incorporated panic-brake function. Built for experienced rope access, rescue and belay users, the D4PRO provides smooth control, a broader operating “sweet spot” and reliable performance during demanding rope work.
Based on the popular ISC D4 Work/Rescue Descender platform, the D4PRO is particularly useful for longer descents and rescue or belay applications where qualified users may prefer a device without panic-brake engagement. It is fully certified to EN 12841:2024-C and meets the requirements of NFPA 1983.
Key Features
- ISC D4PRO Work/Rescue Descender
- Professional descender for rope access and rescue users
- Based on the proven ISC D4 descender platform
- No incorporated panic-brake function
- Ideal for experienced and qualified professional users
- Useful for longer descents and rescue/belay applications
- Broader control “sweet spot” compared with panic-brake models
- Rated load of 240kg / 550lb
- 5kN slip load
- Certified to EN 12841:2024-C
- Meets the requirements of NFPA 1983
Designed for Experienced Professional Users
The D4PRO has been developed in response to feedback from highly qualified rope access and rescue professionals who wanted the trusted D4 platform without a panic-brake function.
No Panic-Brake Function
Unlike the standard ISC D4 RP880 descender, the D4PRO does not incorporate a panic-brake. This makes it well suited to experienced operators who prefer a wider control range during longer descents, rescue systems and belay applications.
High Rated Load
The ISC D4PRO has a rated load of 240kg / 550lb, achieved without the need to add additional friction to the system.
Certified to EN 12841
The D4PRO is fully certified to EN 12841:2024-C. As a panic-brake is not compulsory under this standard, the D4PRO can be certified to EN 12841 without incorporating that feature.
Important ANSI Compatibility Note
Because the D4PRO does not include a panic-brake function, it cannot fully meet ANSI standards. If you require a descender that fully meets ANSI standards, please consider the ISC D4 Work/Rescue Descender RP880 with incorporated panic-brake.
Technical Specifications
| Specification | Details |
|---|---|
| Product Name | ISC D4PRO Work/Rescue Descender |
| Device Type | Work/rescue descender |
| Panic Brake | No incorporated panic-brake function |
| Rated Load | 240kg / 550lb |
| Slip Load | 5kN |
| Approved Standard | EN 12841:2024-C |
| Additional Standard | Meets the requirements of NFPA 1983 |
| ANSI Note | Does not fully meet ANSI standards due to no panic-brake function |
Ideal For
- Experienced rope access professionals
- Rescue and emergency rope systems
- Longer descent applications
- Belay applications
- Work positioning and controlled descent
- Users wanting a D4-style descender without a panic-brake
Explore More
- Descenders & Ascenders
- Climbing Equipment
- Climbing Ropes
- Carabiners & Connectors
- Arborist Guides & Advice
Best For
The ISC D4PRO Work/Rescue Descender is best suited to experienced rope access and rescue professionals who want the D4 platform without an incorporated panic-brake function.
Why Choose the ISC D4PRO Descender?
With its proven D4 platform, 240kg rated load, EN 12841:2024-C certification and panic-brake-free design, the ISC D4PRO offers confident control for qualified professional users.
Climbing Hardware
| Weight | 676 |
|---|---|
| Material | CAM - Stainless Steel |
| Working Load Limit (WLL) | 240 |
| Rope Size | 10.5-11.5 |
| Standard | CE EN 12841 | Meets NFPA 1983 |
ISC D4PRO Work/Rescue Descender
The ISC D4PRO Work/Rescue Descender is a professional rope access and rescue descender designed for users who want the proven performance of the standard ISC D4, but without an incorporated panic-brake function. Built for experienced rope access, rescue and belay users, the D4PRO provides smooth control, a broader operating “sweet spot” and reliable performance during demanding rope work.
Based on the popular ISC D4 Work/Rescue Descender platform, the D4PRO is particularly useful for longer descents and rescue or belay applications where qualified users may prefer a device without panic-brake engagement. It is fully certified to EN 12841:2024-C and meets the requirements of NFPA 1983.
Key Features
- ISC D4PRO Work/Rescue Descender
- Professional descender for rope access and rescue users
- Based on the proven ISC D4 descender platform
- No incorporated panic-brake function
- Ideal for experienced and qualified professional users
- Useful for longer descents and rescue/belay applications
- Broader control “sweet spot” compared with panic-brake models
- Rated load of 240kg / 550lb
- 5kN slip load
- Certified to EN 12841:2024-C
- Meets the requirements of NFPA 1983
Designed for Experienced Professional Users
The D4PRO has been developed in response to feedback from highly qualified rope access and rescue professionals who wanted the trusted D4 platform without a panic-brake function.
No Panic-Brake Function
Unlike the standard ISC D4 RP880 descender, the D4PRO does not incorporate a panic-brake. This makes it well suited to experienced operators who prefer a wider control range during longer descents, rescue systems and belay applications.
High Rated Load
The ISC D4PRO has a rated load of 240kg / 550lb, achieved without the need to add additional friction to the system.
Certified to EN 12841
The D4PRO is fully certified to EN 12841:2024-C. As a panic-brake is not compulsory under this standard, the D4PRO can be certified to EN 12841 without incorporating that feature.
Important ANSI Compatibility Note
Because the D4PRO does not include a panic-brake function, it cannot fully meet ANSI standards. If you require a descender that fully meets ANSI standards, please consider the ISC D4 Work/Rescue Descender RP880 with incorporated panic-brake.
Technical Specifications
| Specification | Details |
|---|---|
| Product Name | ISC D4PRO Work/Rescue Descender |
| Device Type | Work/rescue descender |
| Panic Brake | No incorporated panic-brake function |
| Rated Load | 240kg / 550lb |
| Slip Load | 5kN |
| Approved Standard | EN 12841:2024-C |
| Additional Standard | Meets the requirements of NFPA 1983 |
| ANSI Note | Does not fully meet ANSI standards due to no panic-brake function |
Ideal For
- Experienced rope access professionals
- Rescue and emergency rope systems
- Longer descent applications
- Belay applications
- Work positioning and controlled descent
- Users wanting a D4-style descender without a panic-brake
Explore More
- Descenders & Ascenders
- Climbing Equipment
- Climbing Ropes
- Carabiners & Connectors
- Arborist Guides & Advice
Best For
The ISC D4PRO Work/Rescue Descender is best suited to experienced rope access and rescue professionals who want the D4 platform without an incorporated panic-brake function.
Why Choose the ISC D4PRO Descender?
With its proven D4 platform, 240kg rated load, EN 12841:2024-C certification and panic-brake-free design, the ISC D4PRO offers confident control for qualified professional users.
Climbing Hardware
| Weight | 676 |
|---|---|
| Material | CAM - Stainless Steel |
| Working Load Limit (WLL) | 240 |
| Rope Size | 10.5-11.5 |
| Standard | CE EN 12841 | Meets NFPA 1983 |
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Delivery & Returns
UK Delivery
Fast, reliable delivery from our UK warehouse.
- FREE UK Delivery on orders over £75 + VAT
Estimated delivery: 2–4 working days
- UK Standard Delivery from £3.60 + VAT
Estimated delivery: 2–4 working days
- Next Working Day Delivery – £6.00 + VAT
Order before 3:00pm (Monday–Friday) for next working day delivery
All UK orders are dispatched Monday–Friday and sent via a tracked courier service.
International Delivery
We ship worldwide from the UK.
- Europe from £10.00
Estimated delivery: 2–7 working days - Rest of the World from £12.00
Estimated delivery: 2–11 working days
Shipping costs and delivery times are calculated at checkout based on destination and order contents.
Customs, Duties & Taxes
International orders may be subject to local import duties, taxes, or customs charges.
When UPS is selected at checkout, applicable duties and taxes are included in the total price. For other shipping services, duties and taxes may be charged separately on delivery and are the responsibility of the recipient.
Customs processing times may affect delivery estimates.
Returns
30-Day Return Policy
- Items can be returned within 30 days of delivery
- Products must be unused and in original condition
- Return postage costs apply unless the item is faulty or incorrect
For full details, please visit our Shipping & Returns page.
UK Delivery
Fast, reliable delivery from our UK warehouse.
- FREE UK Delivery on orders over £75 + VAT
Estimated delivery: 2–4 working days
- UK Standard Delivery from £3.60 + VAT
Estimated delivery: 2–4 working days
- Next Working Day Delivery – £6.00 + VAT
Order before 3:00pm (Monday–Friday) for next working day delivery
All UK orders are dispatched Monday–Friday and sent via a tracked courier service.
International Delivery
We ship worldwide from the UK.
- Europe from £10.00
Estimated delivery: 2–7 working days - Rest of the World from £12.00
Estimated delivery: 2–11 working days
Shipping costs and delivery times are calculated at checkout based on destination and order contents.
Customs, Duties & Taxes
International orders may be subject to local import duties, taxes, or customs charges.
When UPS is selected at checkout, applicable duties and taxes are included in the total price. For other shipping services, duties and taxes may be charged separately on delivery and are the responsibility of the recipient.
Customs processing times may affect delivery estimates.
Returns
30-Day Return Policy
- Items can be returned within 30 days of delivery
- Products must be unused and in original condition
- Return postage costs apply unless the item is faulty or incorrect
For full details, please visit our Shipping & Returns page.

