Tube devices are light, simple and versatile, and work with single and double ropes for rappelling. Assisted-braking devices add extra braking help: passive designs use geometry, active designs use a moving cam. Guide-mode devices can belay seconds from an anchor. Every device has a rated rope diameter range, and none removes the need to keep a hand on the brake strand. Learn from a qualified instructor.
The belay device is how one climber catches another. Choose one that fits your rope and your climbing, and learn it properly.
Types
| Type | How it brakes | Strengths | Notes |
|---|---|---|---|
| Tube | Friction from the brake hand | Light, versatile, rappels on two strands | Relies entirely on the brake hand |
| Passive assisted braking | Geometry pinches the rope under load | Light, assisted catch | Technique for lowering differs |
| Active assisted braking | Moving cam locks under load | Strong assist, common in gyms | Heavier; single rope only for many |
| Guide mode tube | Tube with an autoblocking mode | Belaying seconds from anchors | Multi-pitch use |
Rope diameter
Every device lists a rated rope diameter range. Thin ropes in a device rated for thick ones feed fast and brake less. Check your rope.
Carabiners
| Type | Use |
|---|---|
| HMS locking | Belay and Munter hitch |
| Locking with keeper or bar | Prevents cross-loading |
| Non-locking | Quickdraws and racking |
Strength ratings in kN are stamped on the spine for major axis, minor axis and gate open.
Certification
Look for EN 15151 and the maker’s instructions. Practice catches with an experienced belayer backing you up.
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Common questions
What belay device is best for beginners?
Many gyms teach on tube or assisted-braking devices. Learn the device your instructor teaches and always keep a hand on the brake strand.
Are assisted-braking devices hands-free?
No. They add braking assistance, but the belayer must always hold the brake strand.
What locking carabiner should I use for belaying?
A large HMS (pear-shaped) locking carabiner, often with a belay bar or keeper to prevent cross-loading.
What is EN 15151?
The European standard for braking devices: part 1 for devices with manually assisted locking, part 2 for manual braking devices like tubes.