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. 179-7565
BrandRS PRO
kr 240,28
Each
Units
Cat Whisker Yes NO/NC Snap IP67 - Glass Fibre Reinforced Plastic - - - - - 172mm 31 x 31 x 172 mm
RS Stock No. 179-7566
BrandRS PRO
kr 240,28
Each
Units
Roller Arm Lever Yes NO/NC Snap IP67 - Glass Fibre Reinforced Plastic - - - - - 89mm 31 x 31 x 89 mm
RS Stock No. 179-7567
BrandRS PRO
kr 180,21
Each
Units
Roller Plunger Yes NO/NC Snap IP67 - Glass Fibre Reinforced Plastic - - - - - 84.5mm 31 x 30.5 x 84.5 mm
RS Stock No. 179-7568
BrandRS PRO
kr 180,21
Each
Units
Plunger Yes NO/NC Snap IP67 - Glass Fibre Reinforced Plastic - - - - - 74.5mm 31 x 31 x 74.5 mm
RS Stock No. 179-7570
BrandRS PRO
kr 200,23
Each
Units
Roller Lever Yes NO/NC Snap IP67 - Glass Fibre Reinforced Plastic - - - - - 107mm 31 x 47.5 x 107 mm
RS Stock No. 179-7569
BrandRS PRO
kr 200,23
Each
Units
Roller Lever Yes NO/NC Snap IP67 - Glass Fibre Reinforced Plastic - - - - - 62mm 31 x 45 x 62 mm
RS Stock No. 179-7563
BrandRS PRO
kr 266,98
Each
Units
- - NO/NC Slow IP67 Screw Plastic - - - - - 95mm 31 x 31 x 95 mm
RS Stock No. 179-7561
BrandRS PRO
kr 266,98
Each
Units
- - 2NC/NO Slow IP67 Screw Plastic - - - - - 95mm 31 x 31 x 95 mm
RS Stock No. 179-7562
BrandRS PRO
kr 266,98
Each
Units
- - 2NC Slow IP67 Screw Plastic - - - - - 95mm 31 x 31 x 95 mm
RS Stock No. 498-965
Mfr. Part No.3SE5232-0CC05
BrandSiemens
kr 226,32
Each
Units
Plunger Yes NO/NC Snap IP65 Screw Plastic 1 2 M20 x 1.5 - 3SE5 33mm 75.7 x 31 x 33 mm
RS Stock No. 227-977
Mfr. Part No.3SE5232-0HC05
BrandSiemens
kr 226,32
Each
Units
Plunger - NO/NC - IP65 Screw Plastic - - - - 3SE5 33mm 75.7 x 31 x 33 mm
RS Stock No. 749-7666
Mfr. Part No.3SE5232-0HK21
BrandSiemens
kr 341,97
Each
Units
Twist Lever Yes NO/NC - IP65 Screw Plastic - - - DPST 3SE5 33mm 75.7 x 31 x 33 mm
RS Stock No. 757-9159
Mfr. Part No.D4B4116N
BrandOmron
kr 529,50
Each
Units
Roller Lever Yes NO/NC Snap - Screw Metal 1 2 M20 DPST D4B-N 43mm 99.5 x 40 x 43 mm
RS Stock No. 749-7583
Mfr. Part No.3SE5112-0CD02
BrandSiemens
kr 645,06
Each
Units
Plunger Yes NO/NC - IP66, IP67 Screw Metal - - - DPST 3SE5 37.3mm 85.7 x 40.5 x 37.3 mm
RS Stock No. 757-9156
Mfr. Part No.D4B-4171N
BrandOmron
kr 467,30
Each
Units
Roller Plunger Yes NO/NC Snap - Screw Metal 1 2 M20 DPST D4B-N 43mm 97 x 40 x 43 mm
RS Stock No. 749-7599
Mfr. Part No.3SE5112-0CH50
BrandSiemens
kr 657,02
Each
Units
Twist Lever Yes NO/NC - IP66, IP67 Screw Metal - - - DPST 3SE5 37.3mm 85.7 x 40.5 x 37.3 mm
RS Stock No. 447-4641
Mfr. Part No.XCSM3910L5
kr 903,28
Each
Units
Plunger Yes NO/2NC Snap IP66, IP67, IP68 Cable Metal - 3 - - XCSM 16mm 60 x 30 x 16 mm
RS Stock No. 746-7264
Mfr. Part No.D4N-4162
BrandOmron
kr 199,84
Each
Units
Roller Lever Yes NO/NC Snap - Screw - - 2 M20 DPST D4N 31.5mm 64 x 31 x 31.5 mm
RS Stock No. 621-1521
Mfr. Part No.D4N-112G
BrandOmron
kr 226,77
Each
Units
Roller Lever Yes NO/NC Snap IP67 Screw - - 2 - SPDT D4N 45mm 73 x 31 x 45 mm
RS Stock No. 258-8085
Mfr. Part No.GSAC01B
BrandHoneywell
kr 667,39
Each
Units
Plunger Yes NO/NC Snap - Screw Metal - 2 M20 x 1.5 DP GSS 55.9mm 145.8 x 42 x 55.9 mm
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