GF4C – Rotary Limit Switch

Rotary limit switch used to control and measure the movement of industrial machines or the position of the nacelle or pitch angle of wind turbines.
Features
– It consists of a gear motor that transfers movement to the cams and the other movement detection devices through a primary input reduction stage (worm gear and helical toothed gear) and one or more secondary output stages.
– Accurate adjustment of cams by means of screws.
– Positive opening NC contacts for safety functions.
– Mechanical life of switches: up to 1 million operations.
– IP protection degree: GF4C is classified IP65.
– Extreme temperature resistance: -25°C to +70°C.
– It features transmission and gear driving shafts made of stainless steel, self-lubricating technopolymer gears and driving bushes and sintered bronze bushes moulded into the base of the limit switch to prevent rubbing against plastic material.
– All materials and components used are wear resistant and guarantee protection of the unit against water and dust.
Options
– Revolution ratios from 1:1 to 1:969, achieved by combining different secondary output stages.
– Each of the two outputs can be set to a different revolution ratio to enable diversified control of the machine when special requirements need to be met.
– Snap actions switches with 1NO+1NC contacts or slow action switches with 1NC contact.
– It can be equipped with 2 cam sets (with up to 7 switches), potentiometers and encoders (alone or on top of cam sets with up to 2 switches) and Yankee absolute encoders (on top of cam sets with up to 3 switches).
– Available with flanges, pinion gears and couplings.
– Available with direct control switches to enable direct action on the motor.
Certifications
– CE marking and cULus* marking and EAC certification

* Not available on all versions.