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. 757-9156
FabrikantnummerD4B-4171N
FabrikantOmron
57,20 €
Each
Aantal stuks
Roller Plunger Yes NO/NC Snap - Screw Metal 1 2 M20 DPST D4B-N 43mm 97 x 40 x 43 mm
RS-stocknr. 621-1521
FabrikantnummerD4N-112G
FabrikantOmron
21,56 €
Each
Aantal stuks
Roller Lever Yes NO/NC Snap IP67 Screw - - 2 - SPDT D4N 45mm 73 x 31 x 45 mm
RS-stocknr. 621-1543
FabrikantnummerD4N-1132
FabrikantOmron
15,51 €
Each
Aantal stuks
Roller Plunger Yes NO/NC Snap IP67 Screw - - 2 - SPDT D4N 31.5mm 83.6 x 31 x 31.5 mm
RS-stocknr. 836-2731
FabrikantnummerD4B4A11N
FabrikantOmron
63,00 €
Each
Aantal stuks
Roller Lever Yes 2NC Slow IP67 Screw Metal 1 - M20 - D4B 131.3mm 40 x 62 x 131.3 mm
RS-stocknr. 621-1537
FabrikantnummerD4N-1131
FabrikantOmron
15,51 €
Each
Aantal stuks
Plunger Yes NO/NC Snap IP67 Screw - - 2 - SPDT D4N 30mm 73.2 x 31 x 30 mm
RS-stocknr. 621-1515
FabrikantnummerD4N-1120
FabrikantOmron
17,39 €
Each
Aantal stuks
Roller Lever Yes NO/NC Snap IP67 Screw - - 2 - SPDT D4N 47mm 73 x 31 x 47 mm
RS-stocknr. 757-9159
FabrikantnummerD4B4116N
FabrikantOmron
57,20 €
Each
Aantal stuks
Roller Lever Yes NO/NC Snap - Screw Metal 1 2 M20 DPST D4B-N 43mm 99.5 x 40 x 43 mm
RS-stocknr. 746-7242
FabrikantnummerD4N-4120
FabrikantOmron
17,39 €
Each
Aantal stuks
Roller Lever Yes NO/NC Snap - Screw - - 2 M20 DPST D4N 47mm 64 x 31 x 47 mm
RS-stocknr. 746-7255
FabrikantnummerD4N-4132
FabrikantOmron
15,51 €
Each
Aantal stuks
Roller Plunger Yes NO/NC Snap - Screw - - 2 M20 DPST D4N 31.5mm 64 x 31 x 31.5 mm
RS-stocknr. 746-7258
FabrikantnummerD4N-412H
FabrikantOmron
19,31 €
Each
Aantal stuks
Roller Lever Yes NO/NC Snap - Screw - - 2 M20 DPST D4N 48.2mm 64 x 31 x 48.2 mm
RS-stocknr. 621-1565
FabrikantnummerD4N-1A2H
FabrikantOmron
21,46 €
Each
Aantal stuks
Roller Lever Yes NO/NC Slow IP67 Screw - - 2 - SPDT D4N - -
RS-stocknr. 836-2753
FabrikantnummerD4N8131
FabrikantOmron
16,24 €
Each
Aantal stuks
Top Plunger Yes NO/NC Snap IP67 Screw - 1 2 M20 DPST D4N 65mm 59 x 31.5 x 65 mm
RS-stocknr. 757-9152
FabrikantnummerD4B4117N
FabrikantOmron
60,75 €
Each
Aantal stuks
Rod Lever Yes NO/NC Snap - Screw Metal 1 2 M20 DPST D4B-N 43mm 99.5 x 40 x 43 mm
RS-stocknr. 757-9140
FabrikantnummerD4B4111N
FabrikantOmron
48,86 €
Each
Aantal stuks
Roller Lever Yes NO/NC Snap - Screw Metal 1 2 M20 DPST D4B-N 43mm 99.5 x 40 x 43 mm
RS-stocknr. 746-7270
FabrikantnummerD4N-4187
FabrikantOmron
25,03 €
Each
Aantal stuks
Plastic Rod Yes NO/NC Snap - Screw - - 2 - DPST D4N 31.5mm 64 x 31 x 31.5 mm
RS-stocknr. 621-1559
FabrikantnummerD4N-1162
FabrikantOmron
19,00 €
Each
Aantal stuks
Roller Plunger Yes NO/NC Snap IP67 Screw - - 2 - SPDT D4N 31.5mm 83.6 x 31 x 31.5 mm
RS-stocknr. 746-7251
FabrikantnummerD4N-4131
FabrikantOmron
15,51 €
Each
Aantal stuks
Plunger Yes NO/NC Snap - Screw - - 2 M20 DPST D4N 31.5mm 64 x 31 x 31.5 mm
RS-stocknr. 836-2735
FabrikantnummerD4N112H
FabrikantOmron
21,56 €
Each
Aantal stuks
Adjust Roller Lever Yes NO/NC Snap IP67 Screw Metal 1 2 PG13.5 DPST D4N 82.5mm 31 x 48.2 x 82.5 mm
RS-stocknr. 836-2750
FabrikantnummerD4N4A32
FabrikantOmron
15,51 €
Each
Aantal stuks
Top Roller Plunger Yes NO/NC Slow IP67 Screw - 1 2 M20 DPST D4N 83.6mm 31 x 31.5 x 83.6 mm
RS-stocknr. 836-2741
FabrikantnummerD4N4A31
FabrikantOmron
15,51 €
Each
Aantal stuks
Top Plunger Yes NO/NC Slow IP67 Screw - 1 2 M20 DPST D4N 73.2mm 31 x 31.5 x 73.2 mm