31
1200
1201
1202
1203
1204
Melges 24 © Petey Crawford
B
A
1205
Blocks are clearly labeled with part 
number, line diameter, maximum 
working load, and directional 
arrows for line direction.
Protexit™ Blocks
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.
Strong. Durable. Gentle. Protexit blocks protect the race results you work 
hard to achieve. 
Part
No.
Description
Sheave
Ø
Length
Weight
Max line
Ø
 Fasteners
(FH)
 Fastener
spacing
 A
 B
Maximum
working load
Breaking
load
in
mm
in
mm
oz
g
in
mm
 in
 mm
 mm
 mm
 mm
lb
kg
lb
kg
 1200 
 30 mm single 
 1 3/16 
 30 
 2 15/16 
 75 
 1.3 
 37 
 5/16 
 8 
 #10 
 5 
 57 
 18.2 
 45.7 
 550 
 250 
 1103 
 500 
 1201 
 30 mm double 
 1 3/16 
 30 
 3 13/16 
 97 
 2 
 57 
 5/16 
 8 
 #10 
 5 
 79 
 18.2 
 70.1 
 550 
 250 
 1103 
 500 
 1202 
 40 mm single 
 1 9/16 
 40 
 4 3/16 
 107 
 2.6 
 74 
 5/16 
 8 
 1/4 
 6 
 75 
 19.7 
 59.2 
 880 
 400 
 1764 
 800 
 1203 
 50 mm single 
 1 15/16 
 50 
 4 5/8 
 117 
 4.5 
 128 
 1/2 
 12 
 1/4 
 6 
 90 
 23.3 
 71.5 
 1760 
 800 
 3528 
 1600 
 1204 
 60 mm single 
 2 3/8 
 60 
 5 1/16 
 129 
 6.3 
 179 
 1/2 
 12 
 1/4 
 6 
 105 
 24.3 
 84 
 2640 
 1200 
 5292 
 2400 
 1205 
 40 mm single/wide sheave  1 9/16 
 40 
 4 3/16 
 107 
 4.5 
 127 
 5/16 
 8 
 1/4 
 6 
 75 
 30.6 
 59.2 
 880 
 400 
 1764 
 800 
Delrin is a registered trademark of E. I. du Pont de Nemours and Company or its affiliates.

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