ISO Certificate Manufacturer

Search

Gravity Limit Switch

Providing the best construction policy to customers.
Introduction

Weight limit switch 10a

Weight operated limit switches is used on control / the power circuit of reversing drives to limit their rotation/movement within a predetermined position. Complying to iec/en 60947-5-1, iec/en 60529,iec 60068-2-78, iec 60068-2-30.

Operation

When the snatch block of the crane reaches its top position the snatch block pushes a plate which is hanging from one end of the lever of the limit switch. Due to the weight placed on the other end of the lever this lever is pushed up. When the lever is pushed up the shaft to which this lever is connected rotates there by rotating the cams which eventually open the contacts.

Technical data

  • Body material: powder coated, aluminum die cast
  • Degree of protection: ip-55 is/iec-600529 : 2001
  • Mounting position: floor mounting
  • Cable entries: twin, 3/4” bs conduit
  • No. Of contact: 2 nc
  • Contact: silver-cadmium
  • Wire connection: screwed terminals
  • Thermal test current: 10 a
  • Rated voltage: 500 v.a.c
Introduction

Weight Limit Switch 40A

Weight operated limit switches is used on control / the power circuit of reversing drives to limit their rotation/movement within a predetermined position. Complying to iec/en 60947-5-1, iec/en 60529,iec 60068-2-78, iec 60068-2-30

Operation

When the snatch block of the crane reaches its top position the snatch block pushes a plate which is hanging from one end of the lever of the limit switch. Due to the weight placed on the other end of the lever this lever is pushed up. When the lever is pushed up the shaft to which this lever is connected rotates there by rotating the cams which eventually open the contacts.

Technical data

  • Body material: powder coated, aluminum die cast
  • Degree of protection: ip-55 is/iec-600529 : 2001
  • Mounting position: floor mounting
  • Cable entries: twin, 3/4” bs conduit
  • No. Of contact: 2nc
  • Contact: silver-cadmium
  • Wire connection: screwed terminals
  • Thermal test current: 40 a
  • Rated voltage: 500 v.a.c
Labh Engineering