Petzl Ascension Hand Ascender – Left Hand

Professional Handled Ascender for 11–13mm Rope – Left Hand

The Petzl Ascension is the industry-standard hand ascender trusted by arborists and rope access professionals worldwide. Its spring-loaded cam moves effortlessly up the rope and locks firmly under load, while the wide ergonomic handle delivers a powerful, comfortable grip even with gloves on. Built for ascending and occasional hauling, the Ascension performs reliably in any conditions.

Key Features

• Spring-loaded one-way cam — moves effortlessly up the rope, locks firmly under load
• Compatible with 11–13mm rope diameter (up to 1/2")
• Wide, ergonomic molded handle — comfortable yet powerful grip, glove-friendly
• Toothed cam with self-cleaning slot — optimized performance on frozen or dirty ropes
• Upper hole — attaches a carabiner for back-up belays or hauling
• Lower holes — for textile footloop and carabiner attachment
• Designed for ascending and occasional progress capture/hauling

Specifications

• Brand: Petzl
• Hand: Left
• Rope diameter: 11–13mm (up to 1/2")
• Application: Tree climbing, arboriculture, rope access, SRT ascent, hauling

Quick Decision Guide

• Left-handed climber? This is the correct version for you.
• Need the right hand version? See the Petzl Ascension – Right Hand.
• Want a double-handle ascender for maximum comfort? See the CT Twin Double-Handle Ascender.
• Need a foot ascender to pair with this? See the Petzl Pantin or CT Quick Step Foot Ascender.
• Need a foot loop for your ascender? See the Petzl Footpro.

Frequently Asked Questions

What rope diameters does the Ascension work with?
It is compatible with ropes from 11mm to 13mm in diameter (up to 1/2").

Can I use it for hauling?
Yes — the Ascension is designed primarily for ascending but can also be used occasionally for progress capture and hauling via the upper carabiner hole.