US

PETZL Ascension Ergonomic Handled Ascender for Rope Ascents

  • 8 to 13 mm rope range
  • Right hand version, yellow body
  • CE EN 567 and **EN 12841 type B** certified
  • NFPA 1983/2500 technical use rating
  • 165 grams listed weight
  • 3 year manufacturer warranty

Last refreshed Oct 2, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A right-hand handled ascender with a dual-density grip, certified for rope work and rated for technical use. It is one side only, so a left-hand user needs the other version.

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ASIN: B00Q78W64MModel: B17ARACategory: Ascenders

Styles Available

Left-handedSingle

Need a different one? Pick on Amazon →

Overview

A cam clamps the rope while a molded, dual-density overmolded handle gives the climber a firm grip in wet or cold conditions. The wide opening lets a gloved hand grab the handle, and an orange safety catch is easy to inspect.

Comfortable, gloved-hand grip and recognized certifications are the reasons to choose it for rope ascents and rescue work. It fits only the listed rope range, and this is the right-hand body only.

Who it's for

Rope access workers, cavers and climbers who ascend regularly and wear gloves will use the wide handle opening and the certifications. Anyone needing a left-hand version, or a lighter chest ascender, should check the other models.

Pros and cons

Pros
  • Dual-density overmolded handle
  • Wide opening for gloved hands
  • Orange safety catch for inspection
  • Certified for rope work
Cons
  • Right hand only in this listing
  • Limited to the listed rope range
  • Instructions not included in the listing
  • Several mixed materials

Performance notes

The cam grips the rope when loaded and slides when the handle is pushed up, which is how a handled ascender climbs. The dual-density handle holds grip in wet or cold conditions. Rope diameter outside the listed range will not clamp reliably.

Where it stands among ascenders

  • #3 most-searched brand and model of the 5 ascenders lines we track (by search demand, not sales).

From the specs of the 14 ascenders we list; not a test result.

Specifications

ModelB17ARA
Dimensions & fit
Hand orientationRight
Weight165 g
Dimensions11.81 x 7.87 x 5.91 inches
Construction & materials
MaterialAluminium, stainless steel, plastic, rubber, nylon
ColorYellow
Compatibility & installation
Rope diameter8 to 13 mm
Warranty & support
Warranty3 year manufacturer warranty
Other details
StyleSingle
CertificationsCE EN 567, CE EN 12841 type B, NFPA 1983/2500 technical use
Model year2017

Frequently asked questions

How big is the Petzl Ascension?

The listed dimensions are 11.81 x 7.87 x 5.91 inches, and the weight is 165 grams. This listing is the right-hand version.

What rope does the Petzl Ascension use?

The description lists rope compatibility of 8 to 13 mm.

Is the Petzl Ascension certified?

The description lists CE EN 567 and CE EN 12841 type B, plus NFPA 1983/2500 technical use.