57MM CARBO POWER 3 SERIES

The Carbo Ratchamatic Power3 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. Ratchamatic blocks are now  available in three different holding powers.

Power3 ratchet blocks have one-design sailors covered with three holding-power options that best suit the day’s wind and wave conditions. More ratchet choices allow sailors to fine-tune their set-ups in tandem with the purchase that provides the ideal level of power, responsiveness, and grip.

Standard 10:1 Holding Power: Black
Harken’s standard 10:1 ratchet (100 lb of force requires only 10 lb of holding power) is a great choice for medium or light-air days where it is vital to ease and trim the sheet smoothly and often. This ratchet is friendly to any type of line.

15:1 Holding Power: Titanium
The 1.5x ratchet has a holding power of 15:1, or 1.5 times that of the standard ratchet. Use in breezy, puffy conditions to boost holding power and to ease quickly when a puff hits. Depending on line composition and cover texture, the more aggressive sheave facets can increase line wear.

20:1 Holding Power: Silver
The 2x ratchet has a holding power of 20:1 or twice that of the standard block. Use in strong, steady wind where holding power is mandatory. The 2x ratchet provides the most aggressive grip on any size line or type.

STANDARD RATCHET
-Sheave Ø (mm) - 57 mm
-Sheave Ø (in) - 2 1/4 in
-Length (mm) - 103 mm
-Length (in) - 4 1/16 in
-Weight (g) - 104 g
-Weight (oz) - 3.7 oz
-Shackle pin Ø (mm) - 5 mm
-Shackle pin Ø (in) - 3/16 in
-Maximum line Ø (mm) - 10 mm
-Maximum line Ø (in) - 3/8 in
-Maximum working load (kg) - 227 kg
-Maximum working load (lb) - 500 lb
-Breaking load (kg) - 907 kg
-Breaking load (lb) - 2000 lb
-Holding power w/180 degree wrap 50 lb (23 kg) - 10:1