Base Rotary limit switches

Small-sized rotary limit switch
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Rotary limit switch used to control and measure the movement of industrial machines. Its compact size make it suitable for use in narrow spaces.

Features

  • It consists of a gear motor that transfers movement through a primary input reduction stage (worm gear and helical toothed gear) and one or more secondary output stages (pairs of straight toothed gears).
  • Accurate adjustment of cams by means of screws.
  • Positive opening NC contacts for safety functions.
  • Mechanical life of switches: 1 million operations.
  • IP protection degree: Base is classified IP 42 / IP 65 or IP 65 / IP 66 / IP 67 / IP 69K.
  • NEMA protection degree: Base IP 66 / IP 67 / IP 69K is classified Type 3; Base IP 42 is classified Type 1.
  • Extreme temperature resistance: -40°C to +80°C.
  • It features stainless steel transmission and gear driving shafts, self-lubricating technopolymer gears and driving bushes, technopolymer base and cover.
  • Sintered bronze bushes are moulded into the base of the limit switch to optimize shaft rotation and prevent rubbing with plastic material.
  • All materials and components used are wear resistant and guarantee protection of the unit against water and dust.

Options

  • Revolution ratios from 1:15 to 1:1500, achieved by combining different secondary output stages.
  • Snap action switches with 1NO+1NC change-over contacts.
  • It can be equipped with a cam set with maximum 6 switches.
  • Dedicated cable clamps or connectors.
  • Available with anti-moisture plug fitted to the base by means of a lock nut, to improve transpiration for the limit switch whilst maintaining protection against water.
  • Available with flanges, pinions and couplings.
  • Available with direct control switches to enable direct action on the motor.

Certifications

  • CE marking, cURus* marking.
  • Complies with accident prevention regulation BGV C 1 (only for Germany).

* Not available on all versions.

GENERAL TECHNICAL SPECIFICATIONS

Ambient temperature Storage -40°C/+80°C
Operational -40°C/+80°C
IP protection degree IP 42
IP 65
IP 65 / IP 66 / IP 67 / IP 69K
NEMA protection degree Type 3 (version IP 65 / IP 66 / IP 67 / IP 69K)
Insulation category Class II
Rotation speed Max. 800 rpm
Cable entry Cable gland M16
Shafts Stainless steel AISI 430F

TECHNICAL SPECIFICATIONS OF THE SWITCHES FOR AUXILIARY CONTROL

Utilisation category AC 15
Rated operational voltage 250 Vac
Rated operational current 3 A
Rated thermal current PRSL0003XX - PRSL0011XX: 5 A
PRSL0017XX - PRSL0195XX: 2.5 A
Rated insulation voltage 300 Vac
Mechanical life 1x106 operations
Connections 6.3 mm Faston taps or screw-type terminals

Applications