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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Description Prix 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
N° de stock RS 447-3395
Référence fabricantXCKP2118P16
30,00 €
Each
Unité
Lever DP NO/NC IP66, IP67 10 A Plastic 240V 250V - Snap Action OsiSense XC Screw 65mm 31mm
N° de stock RS 447-3806
Référence fabricantZCMD21
37,60 €
Each
Unité
- DP NO/NC - 1.5 A Zinc Alloy 240V 250V - Snap Action OsiSense XC Plug 50mm 30mm
N° de stock RS 235-953
Référence fabricantXCKJ10541
55,58 €
Each
Unité
Lever SPDT NO/NC IP66 10 A Metal 600V 600V - Snap Action OsiSense XC Screw 77mm 40mm
N° de stock RS 283-583
Référence fabricantXCMD21G1L1
81,30 €
Each
Unité
Plunger DP NO/NC IP66, IP67, IP68 1.5 A Zinc Alloy 240V 250V - Snap Action OsiSense XC Wire Lead 50mm 30mm
N° de stock RS 447-3840
Référence fabricantXCMD2102L1
55,90 €
Each
Unité
Plunger DP NO/NC IP66, IP67, IP68 1.5 A Zinc Alloy 240V 250V - Snap Action OsiSense XC Wire Lead 50mm 30mm
N° de stock RS 700-4188
Référence fabricantZCT21P16
19,00 €
Each
Unité
- DP NO/NC IP66, IP67 10 A Plastic 240V 250V - Snap Action OsiSense XC Screw - -
N° de stock RS 230-1967
Référence fabricantXCKM115
47,20 €
Each
Unité
Lever DP NO/NC IP66 10 A Zinc Alloy 240V 250V - Snap Action OsiSense XC Screw 64mm 63mm
N° de stock RS 609-3840
Référence fabricantZCMD21C12
65,00 €
Each
Unité
- DP NO/NC IP66, IP67 1.5 A Zinc Alloy 240V 250V - Snap Action OsiSense XC M12 Connector 59mm 30mm
N° de stock RS 447-3430
Référence fabricantXCKP2121P16
29,70 €
Each
Unité
Plunger DP NO/NC IP66, IP67 10 A Plastic 240V 250V Cable Snap Action OsiSense XC Screw Clamp 65mm 31mm
N° de stock RS 447-3474
Référence fabricantXCKD2102P16
35,10 €
Each
Unité
Plunger DP NO/NC - 3 A Zinc Alloy 240V 250V - Snap Action OsiSense XC Screw 65mm 31mm
N° de stock RS 360-8584
Référence fabricantZCKM1
27,90 €
Each
Unité
- DP NO/NC IP66 10 A Zinc Alloy 240V 250V - Snap Action OsiSense XC Wire Lead 64mm 58.5mm
N° de stock RS 700-4169
Référence fabricantXCKP2106G11
30,90 €
Each
Unité
Coil Spring DP NO/NC IP66, IP67 10 A Plastic 240V 250V - Snap Action OsiSense XC Screw 65mm 31mm
N° de stock RS 230-1872
Référence fabricantXCKS131
39,70 €
Each
Unité
Lever DP NO/NC IP65 3 A Plastic 240V 250V - Snap Action OsiSense XC Screw 72.5mm 40mm
N° de stock RS 447-3575
Référence fabricantZCP21
11,80 €
Each
Unité
- DP NO/NC - 1.5 A Plastic 240V 250V - Snap Action OsiSense XC Screw 65mm 31mm
N° de stock RS 230-1951
Référence fabricantXCKM121
48,40 €
Each
Unité
Plunger DP NO/NC IP66 10 A Zinc Alloy 240V 250V - Snap Action OsiSense XC Screw 64mm 63mm
N° de stock RS 447-3604
Référence fabricantZCD21
18,10 €
Each
Unité
- DP NO/NC - 1.5 A Metal 240V 250V - Snap Action OsiSense XC Screw 65mm 31mm
N° de stock RS 700-4309
Référence fabricantXCKJ10541H29
65,20 €
Each
Unité
Lever SPDT NO/NC IP66 10 A Zinc Alloy 240V 250V - Snap Action OsiSense XC Screw 77mm 40mm
N° de stock RS 360-8455
Référence fabricantZCKJ1
36,80 €
Each
Unité
- DP NO/NC IP65 10 A Metal 240V 250V - Snap Action OsiSense XC Screw 77mm 40mm
N° de stock RS 447-3452
Référence fabricantXCKP2145P16
34,90 €
Each
Unité
Lever DP NO/NC IP66, IP67 10 A Plastic 240V 250V - Snap Action OsiSense XC Screw 65mm 31mm
N° de stock RS 447-3468
Référence fabricantXCKD2118P16
38,10 €
Each
Unité
Lever DP NO/NC - 3 A Zinc Alloy 240V 250V - Snap Action OsiSense XC Screw 65mm 31mm