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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Omschrijving Prijs 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-stocknr. 873-2244
Fabrikantnummer440P-MSRS11B
42,70 €
Each
Aantal stuks
Spring Rod Yes NO/NC Snap IP66 M20 Metal - 2 - SPST 440P 43mm 211 x 40 x 43 mm
RS-stocknr. 498-5567
Fabrikantnummer440P-MTAS11B
42,70 €
Each
Aantal stuks
Telescope Arm Yes NO/NC Snap - - Metal - 2 M20 - 440P 43mm 71 x 40 x 43 mm
RS-stocknr. 873-2231
Fabrikantnummer440P-MRPS11B
42,20 €
Each
Aantal stuks
Roller Plunger Yes NO/NC Snap IP66 M20 Metal - 2 - SPST 440P 43mm 118 x 40 x 43 mm
RS-stocknr. 873-2229
Fabrikantnummer440P-MRPB13B
49,90 €
Each
Aantal stuks
Roller Plunger Yes NO/NC Slow IP66 M20 Metal - 4 - 4PST 440P 43mm 118 x 40 x 43 mm
RS-stocknr. 873-2238
Fabrikantnummer440P-MRPB22B
49,90 €
Each
Aantal stuks
Roller Plunger Yes 2NO/NC Slow IP66 M20 Metal - 4 - 4PST 440P 43mm 118 x 40 x 43 mm
RS-stocknr. 323-511
Fabrikantnummer440P-M18001
17,80 €
Each
Aantal stuks
Roller Yes NO/NC Slow IP30 Screw PBT - 2 - - 440P 23.3mm 54 x 25 x 23.3 mm
RS-stocknr. 151-2536
Fabrikantnummer440P-CSLS11B
23,40 €
Each
Aantal stuks
Short Lever Yes NO/NC Snap IP66 M20 Glass Filled PBT 1 2 M20 SPST 440P 41mm 31 x 112 x 41 mm
RS-stocknr. 151-2537
Fabrikantnummer440P-MALS11B
42,70 €
Each
Aantal stuks
Adjustable Lever Yes NO/NC Snap IP66 M20 Metal 1 2 M20 SPST 440P 64mm 40 x 172 x 64 mm
RS-stocknr. 151-2535
Fabrikantnummer440P-CRPS11B
30,20 €
Each
Aantal stuks
Roller Plunger Yes NO/NC Snap IP66 M20 Glass Filled PBT 1 2 M20 SPST 440P 31mm 31 x 90 x 31 mm
RS-stocknr. 151-2534
Fabrikantnummer440P-CRPB12B
32,30 €
Each
Aantal stuks
Roller Plunger Yes NO/2NC Slow IP66 M20 Glass Filled PBT 1 3 M20 SPST 440P 31mm 31 x 90 x 31 mm
RS-stocknr. 151-2533
Fabrikantnummer440P-CALS11B
25,00 €
Each
Aantal stuks
Adjustable Lever Yes NO/NC Snap IP66 M20 Glass Filled PBT 1 2 M20 SPST 440P 40mm 31 x 106 x 40 mm
RS-stocknr. 873-2235
Fabrikantnummer440P-MSLS11B
42,70 €
Each
Aantal stuks
Short Lever Yes NO/NC Snap IP66 M20 Metal - 2 - SPST 440P 64mm 133 x 40 x 64 mm