Specifications

1.Drive : Worm Drive.
2.Enclosure: Totally enclosed
3.Protection: IP - 55
4.Rated Voltages: 24 V to 550 V AC/ DC Max.

Introduction :

Flame-proof Rotary Geared Limit Switch FRGLS is used to trip motor supply when the moving loads reach the extreme end positions of working zone. These are suitable for use in explosive gases, as specified Gas groups I, IIA and IIB, as per IS : 2148 ( 2004 )

 

Operation :

A two (or more ) contact elements are operated by respective rotating cams, suitably adjusted on a cam shaft which rotates with fixed speed ratio of the drive motor shaft. The cams can be steplessly positioned so that they trip motor supply and stop the motion at the set point of travel.The FRLGS limit switches with IP-55 degree of protection are available in desired NO/NC contacts combinations and specified
gear ratio.

 

 

APPLICATION:

Flame-proof Rotary Geared limit switches are suitable for use on reversing drives such as hoists, winches, rolling mills and various other mechanisms used in steel plants such as coke oven,feeding machinery etc.

 

 

1. Product                             : Limit Switch, cam operated contacts Operated by lever or dead weight.
2. Drive                                  : Worm Drive.
3.Contact Material               : Silver Cadmium
4. Thermal Test Current     : 10 Amps. / 40 Amps
5. No. Of Contacts.              : 2 NO +  2 NC.
6. Purpose                            : To trip motor contacts when the Traveling crane crosses set extreme positions.
7. Rated Voltages                : 24 V to 550 V AC/ DC Max.
8. Material                             : Box and Cover CI. FG 220/ LM6    
9. Enclosure                         : Totally Enclosed.
10. Enclosure                      : IP - 55.

11. For use in                       : Zone 1. Gas Groups I, IIA and IIB.
12. Cable Entry                    : Single M20 conduct on threads
13. Cable Entry                    : Double compression cable glands of Stainless steel approved by CIMFR Dhanbad

 

 

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