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
FabrikantnummerAT4/11-1/I/R316
FabrikantEaton
66,10 €
Each
Aantal stuks
Rotary Lever - NO/NC IP65 10 A Plastic 415V 220V - Slow Action AT4 Screw - -
RS-stocknr. 847-4982
FabrikantnummerLS-S02-ZB
FabrikantEaton
94,57 €
Each
Aantal stuks
Key - 2NC IP65 3 A @ 24 V dc, 10 A @ 24 V ac - 415V 220V Cable Standard Action - Screw 60mm 173mm
RS-stocknr. 478-1393
FabrikantnummerLSM-11S
FabrikantEaton
34,38 €
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
FabrikantnummerLS-11D
FabrikantEaton
24,69 €
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. 308-266
FabrikantnummerLS-11
FabrikantEaton
24,32 €
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
FabrikantnummerLS-S11S
FabrikantEaton
23,83 €
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
FabrikantnummerLS-S11-ZB
FabrikantEaton
94,57 €
Each
Aantal stuks
Key - NO/NC IP65 3 A @ 24 V dc, 10 A @ 24 V ac - 415V 220V Cable Standard Action - Screw 60mm 173mm
RS-stocknr. 123-6428
FabrikantnummerLS-S11S-CC
FabrikantEaton
29,28 €
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. 382-1103
FabrikantnummerATB11-1
FabrikantEaton
18,87 €
Each
Aantal stuks
- - NO/NC IP65 10 A - 500V 220V - Snap Action - - 59.2mm 30mm
RS-stocknr. 308-272
FabrikantnummerLS-11S
FabrikantEaton
24,56 €
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. 308-288
FabrikantnummerLS-02
FabrikantEaton
24,56 €
Each
Aantal stuks
Plunger - 2NC IP66, IP67 6 A Plastic 415V 220V Cage Clamp Standard Action LS-Titan Screw 76mm 33.5mm
RS-stocknr. 123-6427
FabrikantnummerLS-11S-CC
FabrikantEaton
29,97 €
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. 123-6424
FabrikantnummerLS-S11D-CC
FabrikantEaton
29,97 €
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. 308-250
FabrikantnummerLS-20
FabrikantEaton
24,56 €
Each
Aantal stuks
Plunger - 2NO IP66, IP67 6 A Plastic 415V 220V Cage Clamp Standard Action LS-Titan Screw 76mm 33.5mm
RS-stocknr. 843-1275
FabrikantnummerAT0-11-S-IA
FabrikantEaton
37,23 €
Each
Aantal stuks
Plunger - NO/NC IP65 10 A Plastic 415V 220V - Slow Action AT0 Screw - -
RS-stocknr. 843-1250
FabrikantnummerAT0-11-1-IA
FabrikantEaton
37,74 €
Each
Aantal stuks
Plunger - NO/NC IP65 10 A Plastic 415V 220V - Slow Action AT0 Screw - -
RS-stocknr. 382-1119
FabrikantnummerATB11-2
FabrikantEaton
18,87 €
Each
Aantal stuks
- - NO/NC IP65 10 A - 500V 220V - Snap Action - - 59.2mm 30mm
RS-stocknr. 843-1190
FabrikantnummerAT4/11-1/I/H
FabrikantEaton
83,23 €
Each
Aantal stuks
Coil Spring - NO/NC IP65 10 A Plastic 415V 220V - Slow Action AT4 Screw - -
RS-stocknr. 843-1207
FabrikantnummerAT4/11-1/I/S
FabrikantEaton
46,31 €
Each
Aantal stuks
Plunger - NO/NC IP65 10 A Plastic 415V 220V - Slow Action AT4 Screw - -
RS-stocknr. 123-6432
FabrikantnummerLS-S20A-CC
FabrikantEaton
29,97 €
Each
Aantal stuks
Plunger - 2NO 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