Rotary Limit Switch FRS

Rotary Limit Switch FRS

Compact gear limit switch for chain hoists and winches

Rotary Limit Switch Series FRS with up to 4 Contact Elements

Mechanical Specifications:

  • 2 – 4 Contacts
  • Revolution Ratio 1:15…1:175
  • Snap Action Contacts (1NO/1NC Changeover)
  • Various cam width

Electrical Specifications:

  • Protection Degree IP65
  • Operating Temperature -20°C…+60°C
  • 12mm Stainless Steel Shaft
  • Insulation Category II

Rotary Limit Switch FRS – the compact Cam Limit Switch

The new geared limit switch of the FRS series stands out particularly due to its small dimensions. As the smallest geared limit switch of our various series, it can be used especially where space conditions are a critical factor.

In general, the geared limit switch is used for motion control of industrial machines and plants. The revolutions of the shaft are transmitted to a cam switch mechanism through which mechanical switching contacts are actuated. All variants of the switching contacts are designed as auxiliary current switches.

Reduction ratios from 1:15 to 1:175 are available for the geared limit switches of the FRS series. The switch can be equipped with a maximum of 4 switching contacts. Each cam can be individually adjusted to the desired position and thus enables flexible definition of end positions and reference points.

To reduce abrasion and rust, the transmission and guide shafts of the gears are made of stainless steel.

All materials in direct contact with the environment are resistant to gases, oils and extreme temperature changes. The circumferential rubber seal provides optimum protection against dust and water, allowing IP 65 protection to be easily achieved. The optimised interior allows quick and easy cabling.