GF4C

Rotary Camme Limit Switch

GF4C

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.

  • 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.

  • Technical Features
  • Standards
  • Microswitches
  • Options
  • Download

Main Features

  • Storage ambient temperature: -40°C/+70°C
  • Operational ambient temperature: -40°C/+70°C
  • Protection degree: IP 65
  • Insulation category: Class II
  • Cable entry: cable clamp M20
  • Shafts: Stainless steel AISI 303
  • Markings and homologations:CE cULus*

Regulations

Directives:
  • 2014/35/UE
  • 2006/42/CE

Rules:
  • EN 60204-1
  • EN 60947-1
  • EN 60947-5-1
  • EN 60529
  • CAN/CSA-C22.2 No 14-13
  • UL 508

Protection:
  • IP65

Certifications:
  • Marcature e omologazioni CE cULus*

Microswitches

  • Utilisation category: AC 15 / 250 Vac / 3 A
  • Rated thermal current: 10 A
  • Rated insulation voltage: 300 Vac
  • Mechanical life: 10x106 operations max
  • Connections: screw-type terminals
  • Markings and homologations: CE EAC cULus

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.
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