Ravioli FRM Series rotary limit switch is a device which allows you to control the movement of industrial and building machines.
The shaft is connected to the motor, so that, after a precise number of turns, the cams cause the intervention of the internal contacts.
The innovative and thorough regulation of the cams allows you to set the microswitches working point linearly and micrometrically.
FRM limit switch is equipped with 3 internal rotation axes, whose ratios for each exit can be different.
A forth rotation axis is available for the application of a speed reader. Ratios range from 1:1 up to 1:900, and the application of encoders, potentiometers or some other sensors in addition to the group of microswitches, realizes in the same device an analogic or digital output, which can be properly read.
Contacts are positive-opening (EN 60947-5-1), which improves the worker's safe.
The series ranges several accessories, such as cog wheels, male shafts, flexible shafts, flanges, internal connections plates.
Ravioli is focusing its activity on products in the respect of people, following the standards which are defined in its Code of Ethic Behaviour. Such products have been studied in order to improve the workers' safety, and they do not contain any substances which is harmful for the environment.
For years Ravioli has been focusing its production on renewable energy.
Driver FRM limit switches, which are also used in the wind turbines and solar tracks, are included in our Green e-motion Program.
They represent a significant step in our project and our participation to the sustainability.
Driver FRM limit switches are in accordance to the following Norms:
2006/42/CE Machine Directive
2006/95/CE Low Voltage Directive
2002/95/CE RoHS Directive
1907/2006 REACH
EN 60947-1 Low-voltagwe switchgears and controls gears
EN 60947-5-1 Control circuit devices
EN 60204-1 Safety of machinery
EN 60529 Protection degrees
UL 508 Industrial control equipment
Driver FRM limit switches are guaranteed by our EC Certificate of Conformity, available upon request, where it is declared that such product has been manufactured by Ravioli in accordance to defined and acknowledged Safety Regulations, and in compliance with the Quality standards stated in our ISO 901-2008 Quality System Certificate.
Ravioli FRM Series Limit Switches Technical Features
Insulation voltage 250V~
Maximum operating voltage 250V~
Black lower casing reinforced nylon
Yellow cover termoplastic, high mechanical and thermical resistance
Operating temperature - 20 °C + 60 °C- 40 °C + 60 °C (on demand)
Drive worm screws
Cable entries standard: 2 glands M20×1,5
Options: more glands
Protection degree IP 66 EN 60529
Protection against contact voltages double insulation EN 60439-1
Max. rotation speed 500 rpm
Homologation CE UL - (c)UL execution on demand
Weight approximately 800 g