Single block 1200
built-inball bearingmax. rope ø 8 mm

single block
single block
single block
Add to favorites
Compare this product


Number of sheaves
Bearing type
ball bearing
Maximum line diameter
max. rope ø 8 mm
Application domain
for sailing dinghies
Working load

250 kg
(551.2 lb)

Breaking load

500 kg
(1,102.3 lb)


37 g
(1 oz)


When you race HARD, and you rip through as many hoists and douses as we do sailing W-L legs all the time, you should expect to start wearing through the sideplates of your halyard exit block right? Wrong! Thanks to Harken Protexit™ blocks, wear from side angle loading is not inevitable. Protexit’s all-aluminum, wear-resistant housing carefully ushers line in and out no matter the angle. There’s more: Protexit blocks offer higher working loads than any small boat exit blocks we’ve ever made. Protexit aluminum sheaves rotate on sleeve bearings with Delrin® sideload balls so they don’t deform in extreme conditions, while reducing wear on the halyard, too. Delrin is a registered trademark of E. I. du Pont de Nemours and Company or its affiliates.


*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.