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
Nieuw
RS-stocknr. 221-2065
FabrikantnummerZCKJ8D
€ 79,20
Each
Aantal stuks
- DP 2 NO IP66 10 A Metal 60V - - - - - - -
Nieuw
RS-stocknr. 221-1896
FabrikantnummerXCKJ1167H29
€ 112,10
Each
Aantal stuks
Roller plunger SP 1 C/O IP66 10 A Metal 500V - - Snap Action - - - -
Nieuw
RS-stocknr. 221-1890
FabrikantnummerXCKD3945P16EX
€ 168,00
Each
Aantal stuks
- DP 2 NC + 1 NO IP66, IP67 10 A Metal 600V - - Snap Action - - - -
Nieuw
RS-stocknr. 221-2878
FabrikantnummerXCKP2111G11
€ 29,00
Each
Aantal stuks
Plunger - 1NC/1NO IP66, IP67 10 A Plastic - - - Snap - - - -
Nieuw
RS-stocknr. 221-2066
FabrikantnummerZCKJD37H29
€ 45,70
Each
Aantal stuks
- - 2 NC + 1 NO IP66 6 A Metal 400V - - - - - - -
Nieuw
RS-stocknr. 221-3025
FabrikantnummerZCKS7H29
€ 35,20
Each
Aantal stuks
Roller - 2 NC IP66, IP67 10 A Plastic - - - - - - - -
Nieuw
RS-stocknr. 221-2881
FabrikantnummerXCKP2511G11
€ 31,50
Each
Aantal stuks
Plunger - 1NC/1NO IP66, IP67 10 A Plastic - - - - - - - -
Nieuw
RS-stocknr. 221-1897
FabrikantnummerXCKJ166D
€ 128,90
Each
Aantal stuks
Ball bearing plunger DP 1 NC + 1 NO IP66 4 A Metal 60V - - Snap Action - - - -
Nieuw
RS-stocknr. 221-2926
FabrikantnummerXCPR2918P16
€ 44,00
Each
Aantal stuks
Roller - 1NC/1NO IP66, IP67 10 A Plastic - - - Snap - - - -
Nieuw
RS-stocknr. 221-2071
FabrikantnummerZCKMD39H29
€ 37,00
Each
Aantal stuks
- - 2 NC + 1 NO IP65 6 A Metal 400V - - Snap Action - - - -
Nieuw
RS-stocknr. 221-1931
FabrikantnummerXR2AA03K40
€ 1.835,20
Each
Aantal stuks
- SP 3 C/O IP54 10 A Aluminium alloy 600V - - Snap Action - - - -
Nieuw
RS-stocknr. 221-2900
FabrikantnummerXCMD2145C12
€ 76,50
Each
Aantal stuks
Roller - 1NC/1NO IP66, IP67 4 A Metal - - - Snap - - - -
Nieuw
RS-stocknr. 221-1891
FabrikantnummerXCKJ105
€ 73,90
Each
Aantal stuks
Rotary DP 1 NC + 1 NO IP66 10 A Metal 500V - - Snap Action - - - -
Nieuw
RS-stocknr. 221-2879
FabrikantnummerXCKP2139P16
€ 49,80
Each
Aantal stuks
Roller - 1NC/1NO IP66, IP67 10 A Plastic - - - Snap - - - -
Nieuw
RS-stocknr. 221-2882
FabrikantnummerXCKP2518P16
€ 28,60
Each
Aantal stuks
Roller - 1NC/1NO IP66, IP67 10 A Plastic - - - - - - - -
Nieuw
RS-stocknr. 221-2860
FabrikantnummerXCKD2518P16
€ 41,60
Each
Aantal stuks
Roller - 1NC/1NO IP66, IP67 10 A Metal - - - - - - - -
Nieuw
RS-stocknr. 221-2067
FabrikantnummerZCKM6
€ 39,90
Each
Aantal stuks
- DP 1 NC + 1 NO IP66 10 A Metal 240V - - - - - - -
Nieuw
RS-stocknr. 221-1917
FabrikantnummerXCRT115EX
€ 1.056,80
Each
Aantal stuks
Roller lever DP 2 x 1 C/O IP40, IP65 - Metal - - - Snap Action - - - -
Nieuw
RS-stocknr. 221-2921
FabrikantnummerXCPR2127P20
€ 58,70
Each
Aantal stuks
Roller - 1NC/1NO IP66, IP67 10 A Metal - - - Snap - - - -
Nieuw
RS-stocknr. 221-3026
FabrikantnummerZCKS9H29
€ 27,80
Each
Aantal stuks
Roller - 2 NC IP66, IP67 10 A Plastic - - - Snap - - - -