Limit Switches

Limit switches are a contact proximity sensor device that consists of an actuator mechanically linked to a set of output contacts. When an object comes into contact with the actuator, the device operates the contacts to make or break an electrical connection.

Limit Switch Makeup

Limit switches are made up of three key components:
•Actuator Head - The actuator is the part of the switch that makes physical contact with the object. In some limit switches, the actuator is attached to an operating head which translates a rotary, linear, or perpendicular motion to open or close the electrical contacts of the switch.


•Switch Body – The switch body is the component containing the electrical contact mechanism, the contacts within the body open or close the electrical circuit when the actuator is activated.


•Receptacle/Terminals - The component containing the terminal screws or screw/clamp assembly necessary for wiring purposes.



Actuator Types

Limit switches are available with a wide range of actuator types. The type of actuator used can be determined by the mounting position, force required and objects to be detected.
•Rotary Lever - with lever actuators, a cam or plate hits the end of the lever arm which in turn rotates a shaft and operates the contacts in the switch. The rotation may be spring returned (momentary) or maintained.


•Plunger - Plunger types are best where short controlled machine movements are present or where mounting space does not permit a lever type.


•Cat Whisker or Coil Spring – Longer actuators with a coil wire that can be moved/bent in multiple directions. Typically used in conveying applications to count objects as they pass by.


•Forked – Used with maintained contacts, consisting of two roller levers. One roller will trip the switch and when the second is moved to the opposite direction it will reset the switch.

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Omschrijving Prijs Actuator Type Pole and Throw Configuration Normal State Configuration IP Rating Maximum Current Housing Material Maximum AC Voltage Maximum DC Voltage Connection Type Contact Type Series Terminal Type Length Width
RS-stocknr. 843-1200
Fabrikantnummer095417 & AT4/11-1/I/R316
FabrikantEaton
77,48 €
Each
Aantal stuks
Rotary Lever - NO/NC IP65 10 A Plastic 415V 220V - Slow Action AT4 Screw - -
RS-stocknr. 847-4982
Fabrikantnummer106874 & LS-S02-ZB
FabrikantEaton
64,64 €
Each
Aantal stuks
Key - 2NC IP65 10 A @ 24 V ac, 3 A @ 24 V dc - 415V 220V Cable Standard Action - Screw 60mm 173mm
RS-stocknr. 478-1393
Fabrikantnummer266140 & LSM-11S
FabrikantEaton
28,88 €
Each
Aantal stuks
Plunger - NO/NC IP66, IP67 6 A Metal 415V 220V Cage Clamp Snap Action LS-Titan Screw 76mm 33.5mm
RS-stocknr. 308-294
Fabrikantnummer266114 & LS-11D
FabrikantEaton
21,36 €
Each
Aantal stuks
Plunger - NO/NC IP66, IP67 6 A Plastic 415V 220V Cage Clamp Standard Action LS-Titan Screw 76mm 33.5mm
RS-stocknr. 847-4985
Fabrikantnummer106798 & LS-S11S
FabrikantEaton
20,62 €
Each
Aantal stuks
- - NO/NC IP66, IP67 3 A @ 24 V dc, 6 A @ 230/240 V ac - 415V 220V - - LS-Titan Screw - -
RS-stocknr. 847-4998
Fabrikantnummer106876 & LS-S11-ZB
FabrikantEaton
64,64 €
Each
Aantal stuks
Key - NO/NC IP65 10 A @ 24 V ac, 3 A @ 24 V dc - 415V 220V Cable Standard Action - Screw 60mm 173mm
RS-stocknr. 308-266
Fabrikantnummer266109 & LS-11
FabrikantEaton
21,25 €
Each
Aantal stuks
Plunger - NO/NC IP66, IP67 6 A Plastic 415V 220V Cage Clamp Standard Action LS-Titan Screw 76mm 33.5mm
RS-stocknr. 308-250
Fabrikantnummer266120 & LS-20
FabrikantEaton
21,25 €
Each
Aantal stuks
Plunger - 2NO IP66, IP67 6 A Plastic 415V 220V Cage Clamp Standard Action LS-Titan Screw 76mm 33.5mm
RS-stocknr. 382-1103
Fabrikantnummer069314 & ATB11-1
FabrikantEaton
18,94 €
Each
Aantal stuks
- - NO/NC IP65 10 A - 500V 220V - Snap Action - - 59.2mm 30mm
RS-stocknr. 308-272
Fabrikantnummer266105 & LS-11S
FabrikantEaton
21,25 €
Each
Aantal stuks
Plunger - NO/NC IP66, IP67 6 A Plastic 415V 220V Cage Clamp Snap Action LS-Titan Screw 76mm 33.5mm
RS-stocknr. 382-1119
Fabrikantnummer071687 & ATB11-2
FabrikantEaton
18,94 €
Each
Aantal stuks
- - NO/NC IP65 10 A - 500V 220V - Snap Action - - 59.2mm 30mm
RS-stocknr. 843-1250
Fabrikantnummer007606 & AT0-11-1-IA
FabrikantEaton
39,92 €
Each
Aantal stuks
Plunger - NO/NC IP65 10 A Plastic 415V 220V - Slow Action AT0 Screw - -
RS-stocknr. 308-288
Fabrikantnummer266107 & LS-02
FabrikantEaton
21,25 €
Each
Aantal stuks
Plunger - 2NC IP66, IP67 6 A Plastic 415V 220V Cage Clamp Standard Action LS-Titan Screw 76mm 33.5mm
RS-stocknr. 123-6428
Fabrikantnummer144118 & LS-S11S-CC
FabrikantEaton
25,33 €
Each
Aantal stuks
Plunger SPST-NC, SPST-NO NO/NC IP65 3 A @ 24 V dc, 6 A @ 24 V ac Cold Climate Insulated Plastic 415V 220V Screw Snap Action LS-Titan - 31mm 33.5mm
RS-stocknr. 123-6424
Fabrikantnummer176891 & LS-S11D-CC
FabrikantEaton
26,30 €
Each
Aantal stuks
Plunger SPST-NC, SPST-NO NO/NC IP65 3 A @ 24 V dc, 6 A @ 24 V ac Cold Climate Insulated Plastic 415V 220V Screw Snap Action LS-Titan - 31mm 33.5mm
RS-stocknr. 843-1275
Fabrikantnummer012352 & AT0-11-S-IA
FabrikantEaton
39,92 €
Each
Aantal stuks
Plunger - NO/NC IP65 10 A Plastic 415V 220V - Slow Action AT0 Screw - -
RS-stocknr. 123-6427
Fabrikantnummer176881 & LS-11S-CC
FabrikantEaton
26,30 €
Each
Aantal stuks
Plunger SPST-NC, SPST-NO NO/NC IP65 3 A @ 24 V dc, 6 A @ 24 V ac Cold Climate Insulated Plastic 415V 220V Cage Clamp Snap Action LS-Titan - 31mm 33.5mm
RS-stocknr. 843-1253
Fabrikantnummer045561 & AT0-11-1-IA/RS
FabrikantEaton
49,19 €
Each
Aantal stuks
Roller Plunger - NO/NC IP65 10 A Plastic 415V 220V - Slow Action AT0 Screw - -
RS-stocknr. 843-1279
Fabrikantnummer021832 & AT0-11-S-IA/AR
FabrikantEaton
50,68 €
Each
Aantal stuks
Roller Lever - NO/NC IP65 10 A Plastic 415V 220V - Slow Action AT0 Screw - -
RS-stocknr. 843-1203
Fabrikantnummer000498 & AT4/11-1/I/RS
FabrikantEaton
67,90 €
Each
Aantal stuks
Roller Plunger - NO/NC IP65 10 A Plastic 415V 220V - Slow Action AT4 Screw - -