GRL Designs
Manufacturers of Crane Overload Sensors

LSW & SRW SERIES LIMITLOAD

LIMITLOAD_ASSEMBLY_TYPE_LS10-3.jpg

 Type

L1 

H1 

H2 

W1 

LSW05-50


 SRW05-30 

145 

100 

78

60 

LSW80

 

230 

110 

85 

60 

 LSW100

 

280 

115 

85 

60 

Overload Type

Operation 

 Range (kg)

Switching

 Max. Rope Dia.mm

 LSW05

 Overload

100 - 600 

Dual Switching

 14

  LSW10 

  Overload 

500 - 1,250 

 Dual Switching 

  14 

 LSW20

 Overload

1,000 - 2,250 

Dual Switching 

 16

 LSW30

 Overload

 2,000 - 3,250

 Dual Switching

  20 

 LSW50

 Overload

 3,000 - 5,250

 Dual Switching

 24

 LSW80

 Overload

 5,000 - 8,000

 Dual Switching

 24

 LSW100

 Overload

 8,000 - 10,000

 Dual Switching

 32

 SRW05

 Slack Rope

 50 - 250

 Dual Switching

 14

 SRW10

 Slack Rope

 100 - 500

 Dual Switching

 14

 SRW20

 Slack Rope

 250 - 750

 Dual switching

 16

Electrical Connections                               Contact Rating


Black......Com 1        Blue......Com 2          6 Amps 125 - 480 Volts AC

Green.....N/O 1         Red.......N/O 2           0.5 Amps  250 Volts DC

White......N/C 1         Yellow...N/C 2

The LSW &SRW units can be wired in different configurations. Wired in series then either switch will provide the cut out. The units however could be wired into 2 independent circuits providing even higher security switching. 


For LSW units normal series operation the Blue and White cables should be connected together and the load connected across Black and Yellow


For SRW units normal series operation the Blue and Green cables should be connected together and the load connected across Black and Red


These units comply with the requirements of BS EN12077-2 & BS EN13849-2