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
PHP1,332.00
Each
units
Cat Whisker Yes NO/NC Snap IP67 - Glass Fibre Reinforced Plastic - - - - - 172mm 31 x 31 x 172 mm
RS Stock No. 179-7568
BrandRS PRO
PHP999.00
Each
units
Plunger Yes NO/NC Snap IP67 - Glass Fibre Reinforced Plastic - - - - - 74.5mm 31 x 31 x 74.5 mm
RS Stock No. 179-7566
BrandRS PRO
PHP1,332.00
Each
units
Roller Arm Lever Yes NO/NC Snap IP67 - Glass Fibre Reinforced Plastic - - - - - 89mm 31 x 31 x 89 mm
RS Stock No. 179-7562
BrandRS PRO
PHP1,480.00
Each
units
- - 2NC Slow IP67 Screw Plastic - - - - - 95mm 31 x 31 x 95 mm
RS Stock No. 179-7561
BrandRS PRO
PHP1,480.00
Each
units
- - 2NC/NO Slow IP67 Screw Plastic - - - - - 95mm 31 x 31 x 95 mm
RS Stock No. 179-7567
BrandRS PRO
PHP999.00
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. 179-7570
BrandRS PRO
PHP1,110.00
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
PHP1,110.00
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
PHP1,480.00
Each
units
- - NO/NC Slow IP67 Screw Plastic - - - - - 95mm 31 x 31 x 95 mm
RS Stock No. 749-7669
Mfr. Part No.3SE5232-0HE10
BrandSiemens
PHP1,713.27
Each
units
Roller Lever Yes NO/NC - IP65 Screw Plastic - - - DPST 3SE5 33mm 75.7 x 31 x 33 mm
RS Stock No. 769-6241
Mfr. Part No.3SE5162-0CH01
BrandSiemens
PHP5,564.58
Each
units
Twist Lever Yes 2NO/2NC Snap - Screw Metal 3 4 M20 x 1.5 - 3SE5 100mm 56 x 37 x 100 mm
RS Stock No. 755-7875
Mfr. Part No.3SE5413-0CN20-1EA2
BrandSiemens
PHP2,925.43
Each
units
Twist Lever Yes NO/NC Snap - Cable - - 2 5 x 0.75 mm² DPST 3SE5 16.2mm 50 x 30 x 16.2 mm
RS Stock No. 749-7631
Mfr. Part No.3SE5122-0CE01
BrandSiemens
PHP2,415.81
Each
units
Roller Lever Yes NO/NC - IP66, IP67 Screw Metal - - - DPST 3SE5 37.8mm 85.7 x 56 x 37.8 mm
RS Stock No. 621-1559
Mfr. Part No.D4N-1162
BrandOmron
PHP1,651.77
Each
units
Roller Plunger Yes NO/NC Snap IP67 Screw - - 2 - SPDT D4N 31.5mm 83.6 x 31 x 31.5 mm
RS Stock No. 749-7583
Mfr. Part No.3SE5112-0CD02
BrandSiemens
PHP3,211.33
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. 621-1543
Mfr. Part No.D4N-1132
BrandOmron
PHP1,360.84
Each
units
Roller Plunger Yes NO/NC Snap IP67 Screw - - 2 - SPDT D4N 31.5mm 83.6 x 31 x 31.5 mm
RS Stock No. 746-7242
Mfr. Part No.D4N-4120
BrandOmron
PHP1,964.41
Each
units
Roller Lever Yes NO/NC Snap - Screw - - 2 M20 DPST D4N 47mm 64 x 31 x 47 mm
RS Stock No. 757-9159
Mfr. Part No.D4B4116N
BrandOmron
PHP4,886.13
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. 621-1515
Mfr. Part No.D4N-1120
BrandOmron
PHP1,523.60
Each
units
Roller Lever Yes NO/NC Snap IP67 Screw - - 2 - SPDT D4N 47mm 73 x 31 x 47 mm
RS Stock No. 746-7255
Mfr. Part No.D4N-4132
BrandOmron
PHP1,360.84
Each
units
Roller Plunger Yes NO/NC Snap - Screw - - 2 M20 DPST D4N 31.5mm 64 x 31 x 31.5 mm
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