Harken 57mm Ratchamatic Block w/ Swivel & 1.5x GripSheave Ø: 2 1/4 in (57 mm)
Power3 ratchet blocks provide sailors that race small one-designs with three holding-power options to handle a variety of wind and sea conditions. More choices allow sailors to fine-tune their set-ups in tandem with the purchase that provides the ideal level of power, responsiveness and grip.
The Carbo Ratchamatic® is a load-sensing ratchet block that rolls freely in both directions under low loads and automatically engages the ratchet as loads increase. Shifting between ratchet and light-air modes is seamless.
1.5x grip: breeze–on/puffs; 15:1 holding power.
Length: 4 1/16 in (103 mm)
Weight: 3.7 oz (104 g)
Shackle pin Ø: 3/16 in (5 mm)
Maximum line Ø: 3/8 in (10 mm)
Maximum working load: 500 lb (227 kg)
Breaking load: 2000 lb (907 kg)
Holding power w/180 degree wrap 50 lb (23 kg): 15:1
DO NOT use Harken equipment for human suspension unless product is specifically certified and labeled for such use.