Petzl MAESTRO
Petzl MAESTRO® Descender with integrated progress-capture pulley.
The MAESTRO is a descender designed for technical rescue operations. It makes it easier to manipulate heavy loads when lowering or hauling and can be used in both the primary system or in a backup belay. This versatility allows rescuers to adapt to a variety of different situations they may encounter on the rescue scene. The ergonomic handle and integrated brake enable a comfortably controlled descent.
Changing from lowering to hauling is immediate, without the need to transfer the load. The integrated progress-capture pulley has a large diameter sheave mounted on sealed ball bearings, providing excellent hauling efficiency. The AUTO-LOCK system automatically locks the rope when the handle is not in use. Once locked, the rope can be taken up without having to manipulate the handle.
• The MAESTRO S is compatible with 10.5 to 11.5 mm ropes and can handle loads up to 250 kg.
• The MAESTRO L is compatible with 12.5 to 13 mm ropes and can handle loads up to 280 kg.
Great Versatility - Ideal for Technical Rescue:
• The locking system with integrated progress-capture pulley allows the same device to be used for lowering and hauling
• Can be used in both a single or twin primary system and in a backup belay.
• Lower connection point can be used to create different types of haul systems
• Hole in the handle for installing a remote-control cord.
Easy to Use:
• Markings on the device make rope installation fast and easy.
• Ergonomic handle allows the rope to be released progressively and enables comfortable control of the descent.
• Changing from lowering to hauling is immediate, without the need to transfer the load.
• The AUTO-LOCK system allows the rope to be blocked automatically when the handle is not in use; once locked, the rope can be taken up without having to manipulate the handle.
Efficient Handling Heavy Loads:
• Integrated progress-capture pulley with very large diameter sheave mounted on sealed ball bearings; rotates in only one direction for excellent hauling efficiency.
• Faceted sheave creates additional friction zones for the rope and provides additional braking when lowering.
• Integrated brake allows adjustment to friction based on the load and the rope diameter.
| MAESTRO S | MAESTRO L | |
| Materials | Aluminum, stainless steel, nylon | |
| Weight | 2.43 lbs. (1100 g) | |
| Rope Compatibility | 10.5 - 11.5 mm | 12.5 - 13 mm |
| Working Load Limit | 330 lbs. (150 kg) w/ 10 - 11.5 mm rope | 615 lbs. (280 kg) |
| 550 lbs. (250 kg) w/ 10.5 - 11.5 mm rope | ||
| 600 lbs. (272 kg) w/ 11 mm MFPA G Rope | ||
| Breaking Strength | 18 kN x 2 = 36 kN | |
| Sheave Type | Faceted on sealed bearings. | |
| Efficiency | 86% | 81% |
| Certifications | - CE EN 12841 type C, CE EN 341 - NFPA 2500 General Use - NFPA 2500 Technical Use - ANSI Z359.9, ANSI Z459.1, EAC |
- CE EN 12841 type C - EN 341 - NFPA 2500 General Use - EAC, UKCA |
| Warranty | 3 Years |
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- View MAESTRO® S Product Sheet [PDF]
- View MAESTRO® L Product Sheet [PDF]