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Single cable 12V POE (Power Over Ethernet) power connection
They are often used on permanent backstays of fractionally rigged boats where the backstay can be spliced directly to the head of the block
Ideal for outhauls
you’ll get top performances at all depths
thick wall nylon housing for secure gripping
Harken 57mm ESP Sheave Boat Lightning Single cable 12V POE (PowerSelf contained sheaves are designed for sailors to use in custom applications. Use Cruising ESP sheaves to handle high static loads from halyards and reef lines. Sheaves are carbon black Delrin for UV protection and turn on stainless steel spacers. Delrin is a registered trademark of E. I. du Pont de Nemours and Company or its affiliates.