The worm drive limit switches Ravioli FCR are particulary suitable for controlling the stops of the lifting electric circuits on building cranes and bridge cranes.

The range includes, among the others, the limit switches equipped with up to 4 microswitches and respective adjustable cams, profile type 1 (standard - white coloured).
On request two other types of cams are available: the profile type 2 (grey coloured) or type 3 (red coloured). They are essential in any particular case to modify the operation chart.
The worm drive limit switches are furthermore supplied in two different versions: either with slow guaranteed opening switches (CEI 17.12 chapter 492) or with changeover quick break switches.
The outer casing is made of termoplastic material with high mechanical and temperature variation resistance.

Ravioli FCR Series Limit Switches​ Technical Features

Insulation Voltage : 250 ~
Maksimum Running Voltage : 250 ~
Operating Temperature Voltage  -30 °C + 70 °C
Cable Inputs : 2xPG11
Mechnical Life : 2x1000000
Driver-Stimulation : Infinite Scaft
Lower Gray Case : RAL 8301
Upper Yellow Case : RAL 8260
Insulation Class : EN 60947-5-1 
Approvals : IEC 337-1 337-1A CFI 44 chapt. 729 VDE 0660 CSA ASE CEE 24