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. 447-3575
FabrikantnummerZCP21
€ 11,80
Each
Aantal stuks
- DP NO/NC - 1.5 A Plastic 240V 250V - Snap Action OsiSense XC Screw 65mm 31mm
RS-stocknr. 447-3395
FabrikantnummerXCKP2118P16
€ 30,00
Each
Aantal stuks
Lever DP NO/NC IP66, IP67 10 A Plastic 240V 250V - Snap Action OsiSense XC Screw 65mm 31mm
RS-stocknr. 609-6619
FabrikantnummerXCKP2106P16
€ 30,90
Each
Aantal stuks
Coil Spring DP NO/NC IP66, IP67 10 A Plastic 240V 250V - Snap Action OsiSense XC Screw 65mm 31mm
RS-stocknr. 308-1664
FabrikantnummerGLCB01A2A
FabrikantHoneywell
€ 34,70
Each
Aantal stuks
Adjustable Roller Lever SPDT 1NO/1NC NO/NC IP66 10 A Die Cast Zinc 300V 300V Internal Screw Terminal Contact Block Snap Action GLC PG13.5 Conduit 68.5mm 30.5mm
RS-stocknr. 386-0366
FabrikantnummerZ15GQ22B
FabrikantOmron
€ 19,96
Each
Aantal stuks
Plunger SPDT NO/NC IP00 15 A - 500V 250V - Snap Action - Screw 58.9mm 49.2mm
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. 609-6625
FabrikantnummerXCMD2102C12
€ 69,60
Each
Aantal stuks
Roller Plunger DP NO/NC IP66, IP67, IP68 1.5 A Zinc Alloy 240V 250V - Snap Action OsiSense XC M12 Connector 50mm 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. 470-4403
FabrikantnummerZS 236-11Z
FabrikantSchmersal
€ 19,76
Each
Aantal stuks
Plunger - NO/NC IP67 10 A Thermoplastic 230V 24V - Snap Action - Screw 61.5mm 30mm
RS-stocknr. 396-2529
FabrikantnummerGXA51A2B
FabrikantHoneywell
€ 219,26
Each
Aantal stuks
Rotary Lever SPDT NO/NC IP66, IP67 4 A Die Cast Zinc 250V - - Snap Action GXA Wire Lead 102.9mm 42mm
RS-stocknr. 447-3840
FabrikantnummerXCMD2102L1
€ 55,90
Each
Aantal stuks
Plunger DP NO/NC IP66, IP67, IP68 1.5 A Zinc Alloy 240V 250V - Snap Action OsiSense XC Wire Lead 50mm 30mm
RS-stocknr. 776-8510
FabrikantnummerZ-15GD-B
FabrikantOmron
€ 12,70
Each
Aantal stuks
Plunger SPDT NO/NC IP00 15 A Thermosetting Resin 500V 250V Screw Snap Action - Screw 49.2mm 30.7mm
RS-stocknr. 435-0343
FabrikantnummerZC-Q2255
FabrikantOmron
€ 43,92
Each
Aantal stuks
Plunger SPDT NO/NC IP67 10 A - 250V 250V - Snap Action - Screw 69.4mm 70mm
RS-stocknr. 386-0423
FabrikantnummerZ15GW2BOMI
FabrikantOmron
€ 11,64
Each
Aantal stuks
Roller Lever SPDT NO/NC IP00 15 A - 500V 250V - Snap Action - Screw 39.4mm 49.2mm
RS-stocknr. 447-3806
FabrikantnummerZCMD21
€ 37,60
Each
Aantal stuks
- DP NO/NC - 1.5 A Zinc Alloy 240V 250V - Snap Action OsiSense XC Plug 50mm 30mm
RS-stocknr. 808-2754
FabrikantnummerBZE6-2RN2
FabrikantHoneywell
€ 63,00
Each
Aantal stuks
Roller Lever SPDT NO/NC IP66 15 A Die Cast Zinc 600V 250V 1/2 NPT Snap Action BZE6 Screw 25.4mm 44.4mm
RS-stocknr. 386-0417
FabrikantnummerZ15GW22B
FabrikantOmron
€ 11,64
Each
Aantal stuks
Roller Lever SPDT NO/NC IP00 15 A - 500V 250V - Snap Action - Screw 39.4mm 49.2mm
RS-stocknr. 700-4309
FabrikantnummerXCKJ10541H29
€ 64,00
Each
Aantal stuks
Lever SPDT NO/NC IP66 10 A Zinc Alloy 240V 250V - Snap Action OsiSense XC Screw 77mm 40mm
RS-stocknr. 360-8455
FabrikantnummerZCKJ1
€ 36,80
Each
Aantal stuks
- DP NO/NC IP65 10 A Metal 240V 250V - Snap Action OsiSense XC Screw 77mm 40mm
RS-stocknr. 396-2513
FabrikantnummerGXA51A1B
FabrikantHoneywell
€ 216,89
Each
Aantal stuks
Rotary Lever SPDT NO/NC IP66, IP67 4 A Die Cast Zinc 250V - - Snap Action GXA Wire Lead 102.9mm 42mm
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