MAESTRO line: difference between S and L models - Petzl Canada
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MAESTRO line: difference between S and L models

Differences and commonalities

Warnings

  • Carefully read the Instructions for Use used in this technical advice before consulting the advice itself. You must have already read and understood the information in the Instructions for Use to be able to understand this supplementary information.
  • Mastering these techniques requires specific training. Work with a professional to confirm your ability to perform these techniques safely and independently before attempting them unsupervised.
  • We provide examples of techniques related to your activity. There may be others that we do not describe here.

MAESTRO S and MAESTRO L have the same construction and same working principle.

The difference between the two models lies in the path of the moving brake plate, which changes the way the rope is pinched against the fixed brake plate. This optimizes locking effectiveness for each rope diameter range.

Rope diameter Maximum working load Device breaking strength Pulley efficiency
MAESTRO S. MAESTRO S, usable rope diameters. 250 kg MAESTRO S, breaking strength. MAESTRO S, load.
MAESTRO L. MAESTRO L, usable rope diameters. 280 kg MAESTRO L, breaking strength. MAESTRO L, load.
MAESTRO S.
Rope diameter MAESTRO S, usable rope diameters.
Maximum working load 250 kg
Device breaking strength MAESTRO S, breaking strength.
Pulley efficiency MAESTRO S, load.
MAESTRO L.
Rope diameter MAESTRO L, usable rope diameters.
Maximum working load 280 kg
Device breaking strength MAESTRO L, breaking strength.
Pulley efficiency MAESTRO L, load.