Safety Limit Switches

Limit switches operate with the movement of machinery, opening or closing the circuit when movement is detected. Safety limit switches provide a level of risk reduction over regular limit switches, as they have a positive actuation structure, which means that if a fault occurs they will stop conducting the electrical load.

What are safety limit switches used for?

Safety limit switches are used in industrial settings to reduce the risk factor in the event of overcurrent or electrical faults. This can be useful in a wide range of applications, from heating and ventilation to the operation of heavy machinery, where normal limit switches might provide a risk if they continued to conduct electricity in the event of a fault.

Types of safety limit switches

Safety limit switches mainly differ by the type of actuator they have. This can be a hinge, roller, rod or push bolt, for example.They can also vary by the number of contacts and cable entries that they have.

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Rincian Komponen Brand Stock Actuator Type Normal State Configuration Action Type IP Rating Connection Type Housing Material Number of Cable Entries Number of Contacts Size of Cable Entries Pole and Throw Configuration Series Dimensions Depth Length Width Mechanical Life Minimum Mounting Orientation Number of Conduit Entries Range
Safety Switch With Plunger Actuator, Glass Fibre Reinforced Plastic, NO/NC
  • S$ 30,51
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RS Pro 37 Plunger NO/NC Snap IP67 - Glass Fibre Reinforced Plastic - - - - - 31 x 31 x 74.5 mm 74.5mm 31mm 31mm 1 x 10^7 operations - 1 -
Safety Switch With Roller Lever Actuator, Glass Fibre Reinforced Plastic, NO/NC
  • S$ 33,90
  • Each
  • Compare
RS Pro 21 Roller Lever NO/NC Snap IP67 - Glass Fibre Reinforced Plastic - - - - - 31 x 47.5 x 107 mm 107mm 31mm 47.5mm 1 x 10^7 operations - 1 -
Safety Switch With Cat Whisker Actuator, Glass Fibre Reinforced Plastic, NO/NC
  • S$ 40,68
  • Each
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RS Pro 16 Cat Whisker NO/NC Snap IP67 - Glass Fibre Reinforced Plastic - - - - - 31 x 31 x 172 mm 172mm 31mm 31mm 1 x 10^7 operations - 1 -
Safety Switch, Plastic, NO/NC
  • S$ 45,20
  • Each
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RS Pro 12 - NO/NC Slow IP67 Screw Plastic - - - - - 31 x 31 x 95 mm 95mm 31mm 31mm 1 x 10^7 operations - 1 -
Safety Switch
  • S$ 2,77
  • Each
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Bernstein AG 10 - - - - - - - - - - - - - - - - - - -
Safety Switch With Roller Lever Actuator, Glass Fibre Reinforced Plastic, NO/NC
  • S$ 33,90
  • Each
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RS Pro 10 Roller Lever NO/NC Snap IP67 - Glass Fibre Reinforced Plastic - - - - - 31 x 45 x 62 mm 62mm 31mm 45mm 1 x 10^7 operations - 1 -
Safety Switch With Roller Plunger Actuator, Glass Fibre Reinforced Plastic, NO/NC
  • S$ 30,51
  • Each
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RS Pro 10 Roller Plunger NO/NC Snap IP67 - Glass Fibre Reinforced Plastic - - - - - 31 x 30.5 x 84.5 mm 84.5mm 31mm 30.5mm 1 x 10^7 operations - 1 -
Safety Switch, Plastic, 2NC
  • S$ 45,20
  • Each
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RS Pro 10 - 2NC Slow IP67 Screw Plastic - - - - - 31 x 31 x 95 mm 95mm 31mm 31mm 1 x 10^7 operations - 1 -
Preventa XCSA Limit Switch, Metal, 2NO/NC
  • S$ 192,97
  • Each
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Telemecanique Sensors 1 - 2NO/NC - IP67 M20 Metal 1 3 M20 3P XCSA 40 x 44 x 114 mm 114mm 40mm 44mm 1000000 cycles - 1 Preventa
Safety Switch With Roller Arm Lever Actuator, Glass Fibre Reinforced Plastic, NO/NC
  • S$ 40,68
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RS Pro 1 Roller Arm Lever NO/NC Snap IP67 - Glass Fibre Reinforced Plastic - - - - - 31 x 31 x 89 mm 89mm 31mm 31mm 1 x 10^7 operations - 1 -
9013FYG2J21B7PU2C20 207-345
  • S$ 236,17
  • Each
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Telemecanique Sensors 0 - - - - - - - - - - - - - - - - - - -
High Actuating Force
  • S$ 23,22
  • Each
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Bernstein AG 0 - - - - - - - - - - SK 52 x 15 x 25 mm 25mm 52mm 15mm - - - -
Preventa XCSA Limit Switch, Metal, NO/2NC
  • S$ 192,97
  • Each
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Telemecanique Sensors 0 - NO/2NC - IP67 M20 Metal 1 3 M20 3P XCSA 40 x 44 x 114 mm 114mm 40mm 44mm 1000000 cycles - 1 Preventa
SHS3 Hinge Switch, PBT, NO/2NC
  • S$ 257,71
  • Each
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Bernstein AG 0 - NO/2NC - IP69K Wire Lead PBT 1 3 - - SHS3 82 x 19.5 x 137 mm 137mm 82mm 19.5mm 1 x 10^6 cycles - - -
SK Safety Switch, Thermoplastic PA, NC
  • S$ 4,78
  • Each
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Bernstein AG 0 - NC - IP65 - Thermoplastic PA - - - - SK 52 x 29 x 15 mm 15mm 52mm 29mm - - - -
Safety Switch, Plastic, 2NC/NO
  • S$ 45,20
  • Each
  • Compare
RS Pro 0 - 2NC/NO Slow IP67 Screw Plastic - - - - - 31 x 31 x 95 mm 95mm 31mm 31mm 1 x 10^7 operations - 1 -
D4N Safety Switch With Roller Lever Actuator, NO/NC
  • S$ 50,24
  • Each
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Omron 261 Roller Lever NO/NC Snap IP67 Screw - - 2 - SPDT D4N 73 x 31 x 45 mm 45mm 73mm 31mm 15000000 cycles - 1 -
D4N Safety Switch With Roller Lever Actuator, NO/NC
  • S$ 35,83
  • Each
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Omron 138 Roller Lever NO/NC Snap IP67 Screw - - 2 - SPDT D4N 73 x 31 x 47 mm 47mm 73mm 31mm 15000000 cycles - 1 -
D4N Safety Switch With Roller Plunger Actuator, NO/NC
  • S$ 40,84
  • Each
  • Compare
Omron 137 Roller Plunger NO/NC Snap IP67 Screw - - 2 - SPDT D4N 83.6 x 31 x 31.5 mm 31.5mm 83.6mm 31mm 15000000 cycles - 1 -
D4N Safety Switch With Roller Lever Actuator, NO/NC
  • S$ 44,44
  • Each
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Omron 124 Roller Lever NO/NC Snap - Screw - - 2 M20 DPST D4N 64 x 31 x 45 mm 45mm 64mm 31mm 15000000 cycles - 1 -
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