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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Description Price Actuator Type Actuator Included 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 Depth Dimensions
RS Stock No. 766-1627
Mfr. Part No.XCSD3918P20
SGD147.58
Each
units
Rotary Lever Yes NO/2NC Snap - Cable Metal 1 3 M20 x 1.5 3P XCSD 35mm 122 x 34 x 35 mm
RS Stock No. 302-0007
Mfr. Part No.XCLJ561H29
SGD302.86
Each
units
Plunger Yes NO/NC Slow IP66 Screw Metal 1 2 20 mm - XCL-J 40mm 107 x 44 x 40 mm
RS Stock No. 814-7964
Mfr. Part No.XCSM3715L2
SGD265.50
Each
units
Roller Lever Yes NO/2NC Slow IP66, IP67, IP68 Pre-Cabled Metal 1 3 7 x 0.5 mm² 3P XCSM 94mm 30 x 32.4 x 94 mm
RS Stock No. 302-0063
Mfr. Part No.XCLJ767H29
SGD278.13
Each
units
Plunger Yes 2NC Slow IP66 Screw Metal 1 2 20 mm - XCL-J 40mm 107 x 44 x 40 mm
New
RS Stock No. 195-1769
Mfr. Part No.XCSM4110L5
SGD117.93
Each
units
Plunger Yes 2NC/2NO Snap IP66, IP67, IP68 Pre-Cabled Zamak 1 9 9 x 0.34 mm² 4P XCSM 60mm 30 x 16 x 60 mm
RS Stock No. 447-4635
Mfr. Part No.XCSM3910L2
SGD211.27
Each
units
Plunger Head Yes NO/2NC Snap IP66, IP67, IP68 Screw Metal - 3 - - XCSM 16mm 60 x 30 x 16 mm
RS Stock No. 766-1728
Mfr. Part No.XCSM4110L1
SGD107.49
Each
units
Plunger Yes 2NO/2NC Snap - Cable Metal - 4 - 4P XCSM 16mm 60 x 30 x 16 mm
RS Stock No. 302-0057
Mfr. Part No.XCLJ761H29
SGD111.86
Each
units
Plunger Yes 2NC Slow IP66 Screw Metal 1 2 20 mm - XCL-J 40mm 107 x 44 x 40 mm
RS Stock No. 132-9181
Mfr. Part No.XCSPL562
SGD73.18
Each
units
Straight Lever Yes NC/NO Break Before Make IP67 M16 Nylon 66, Plastic 1 2 M16 x 1.5 DP XCSPL 88mm 30 x 103 x 88 mm
RS Stock No. 133-0061
Mfr. Part No.XCSM4102L5
SGD133.48
Each
units
Roller Plunger Yes 2NC/2NO Snap IP66, IP67, IP68 Cable Metal 1 4 - 4P XCSM 70.4mm 30 x 16 x 70.4 mm
RS Stock No. 132-9183
Mfr. Part No.XCSPL552
SGD73.14
Each
units
Straight Lever Yes NO/NC Slow IP67 M16 Nylon 66, Plastic 1 2 M16 x 1.5 DP XCSPL 161mm 30 x 30 x 161 mm
New
RS Stock No. 195-1766
Mfr. Part No.XCSM3702L1
SGD101.40
Each
units
Roller Plunger Yes 2NC/1NO - IP66, IP67, IP68 Pre-Cabled Zamak 1 7 7 x 0.5 mm² 3P XCSM 70mm 30 x 16 x 70 mm
RS Stock No. 447-4641
Mfr. Part No.XCSM3910L5
SGD257.11
Each
units
Plunger Yes NO/2NC Snap IP66, IP67, IP68 Cable Metal - 3 - - XCSM 16mm 60 x 30 x 16 mm
RS Stock No. 302-0013
Mfr. Part No.XCLJ567H29
SGD284.31
Each
units
Roller Plunger Yes NO/NC Slow IP66 Screw Metal 1 2 20 mm - XCL-J 40mm 120 x 44 x 40 mm
RS Stock No. 766-1611
Mfr. Part No.XCSD3719P20
SGD155.45
Each
units
Rotary Lever Yes NO/2NC Slow - Cable Metal 1 3 M20 x 1.5 3P XCSD 35mm 122 x 34 x 35 mm
RS Stock No. 179-9878
Mfr. Part No.XCSA522
SGD192.97
Each
units
- - 2NO/NC - IP67 M20 Metal 1 3 M20 3P XCSA 114mm 40 x 44 x 114 mm
RS Stock No. 133-0063
Mfr. Part No.XCSM3715L1
SGD88.09
Each
units
Rotary Lever Yes NO/2NC Slow IP66, IP67, IP68 Cable Metal 1 3 - 3P XCSM 94mm 30 x 32.4 x 94 mm
RS Stock No. 132-9175
Mfr. Part No.XCSPL782
SGD71.78
Each
units
Elbowed Flush Lever Yes 2NC Slow IP67 M16 Nylon 66, Plastic 1 2 M16 x 1.5 DP XCSPL 161mm 30 x 30 x 161 mm
RS Stock No. 814-7952
Mfr. Part No.XCSM3702L2
SGD263.83
Each
units
Roller Plunger Yes NO/2NC Slow IP66, IP67, IP68 Pre-Cabled Metal 1 3 7 x 0.5 mm² 3P XCSM 70.4mm 30 x 16 x 70.4 mm
RS Stock No. 133-0057
Mfr. Part No.XCSP3702P20
SGD55.17
Each
units
Roller Plunger Yes NO/2NC Slow IP66, IP67 M20 Plastic 1 3 M20 x 1.5 3P XCSP 100mm 34 x 35 x 100 mm