Petzl ID S

Equipment Specifications:

Petzl ID S

Primary functions

  • Personal descent device
  • Work Positioning
  • Ascending
  • Belaying
  • At the head of a haul system
  • Rescue
  • Lowering
  • To attach ropes to an anchor

Primary Features

  • Hinged plate to install rope without removing from harness
  • Multi-function handle
  • Anti-panic function
  • Anti-error catch
  • Button for use on low angles

Standards and certifications

  • EN 12841 Type C: 2006
  • EN 341 Class A: 1997
  • NFPA 1983 (2012)

Specifications and limitations

  • MBS 14kN per NFPA standard testing
  • WLL 150 kg per EN 341 and 12841
  • Max 200 kg load for accompanied descent rescue using extra friction
  • Max 250 kg load in exceptional situations for accompanied descent rescue using double extra friction and at very low speeds
  • WLL 250 kg for expert users using additional friction
  • EN 1891 A Rope 10mm-11.5mm
  • Onset of rope slippage at 6.5kN with 11mm semi-static rope

Proper handling and use


  • Install rope correctly- anti-error catch on the tensioned rope side
  • Attach to ventral D ring on harness
  • Verify correct installation by visual inspection, function check, and operational (bump) check
  • Verify the safety gate is closed
  • Position to allow free movement of device
  • Maintain control of tail rope when handle is open, use lock position to go hands free
  • Tail rope is directed over roll plate
  • Maintain control of speed

Lowering from anchor

  • Use extra carabiner to direct tail rope over roll plate


  • Friction through the device reduces efficiency in a 3:1 raise to an effective 2:1
  • Consider using as capture for a separate haul


  • Eliminate slack or reduce to 12” maximum
  • 1 for 1 technique or dedicated belay rope controller
  • Pivot body to allow slack to feed

Attaching ropes to anchor

  • Tie off with mule hitch and clip loop back to anchor
  • For tensioned ropes, the mule hitch should allow for 1m slippage


  • In a dedicated kit, swing plate can be secured with screw
  • Use friction carabiner for accompanied descent

Pre-use inspection

  • Inspect for any cracks, deformation, corrosion
  • Make sure the cam is not worn out; when the cam groove becomes worn all the way to the wear indicator, discontinue use of the I’D
  • Check the moving side plate for deformation or excessive play: if the side plate can pass over the head of the cam axle, discontinue use of the I’D
  • Check the locking components (safety gate, locking screw, axle) and the operation of the springs
    in the cam, the safety gate and of the anti-error catch
  • Verify that the cam is fully mobile.
  • Verify that the horizontal movement button springs back out after it is pressed

Misuse and discrepancies

Major Discrepancy (Fail)

  • Loaded backwards and trying to use in that manner
  • Uncontrolled descent
  • Safety catch not completely closed

Minor Discrepancy (Discrepancy)

  • Device not secured beyond normal lock off when used as anchor
  • Excessive slack when used to belay or while standing on a platform
  • No extra friction for accompanied descent or lowering from top anchor
  • No control of tail rope when handle is unlocked or while descending
  • Tail rope running over the back side of device
  • Inappropriate use of horizontal movement button