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. 808-7670
FabrikantnummerOPD-AR
FabrikantHoneywell
€ 210,95
Each
Aantal stuks
Rotary Lever DPDT - - 10 A Die Cast Aluminium 250V 250V 1/2 in NPT Conduit Snap Action - - 92.96mm 65.02mm
RS-stocknr. 822-5617
FabrikantnummerZ-15GW22-B7-K
FabrikantOmron
€ 8,94
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Roller Lever SPDT NO/NC IP00 15 A Thermosetting Resin 500V 250V M4 Snap Action - Screw 49.2mm 29.4mm
RS-stocknr. 199-135
FabrikantnummerAZD1052CEJ
FabrikantPanasonic
€ 11,69
Each
Aantal stuks
Plunger DPST NO/NC IP67 6 A - 380V 220V - - AZD1 Screw 79mm 30mm
RS-stocknr. 776-8520
FabrikantnummerZ-15GQ
FabrikantOmron
€ 15,98
Each
Aantal stuks
Plunger SPDT NO/NC IP00 15 A Thermosetting Resin 500V 250V Solder Snap Action - PCB Pin 49.2mm 47.3mm
RS-stocknr. 808-2568
Fabrikantnummer914CE1-3
FabrikantHoneywell
€ 57,06
Each
Aantal stuks
Plunger SPDT NO/NC IP66, IP67, IP68 5 A Die Cast Zinc 250V 28V Cable Snap Action 914CE Wire Lead 40mm 16mm
RS-stocknr. 700-4267
FabrikantnummerXCKP2118G11
€ 30,60
Each
Aantal stuks
Lever DP NO/NC IP66, IP67 10 A Plastic 240V 250V - Snap Action OsiSense XC Screw 65mm 31mm
RS-stocknr. 700-4264
FabrikantnummerZCD39
€ 26,50
Each
Aantal stuks
- 3P NO/2NC - 750 mA Metal 240V 250V - Snap Action OsiSense XC Screw 65mm 31mm
RS-stocknr. 319-764
Fabrikantnummer14CE1-1
FabrikantHoneywell
€ 71,26
Each
Aantal stuks
Plunger SP NO/NC IP65, IP67 5 A - 240V - - - 14CE - 49mm 40mm
RS-stocknr. 908-3247
FabrikantnummerWLSD2-G-N
FabrikantOmron
€ 164,30
Each
Aantal stuks
Roller Plunger SPST NO/NC IP67 10 A - 500V 250V PG 13.5 Snap Action WL Screw 40mm 67.3mm
RS-stocknr. 447-3474
FabrikantnummerXCKD2102P16
€ 35,10
Each
Aantal stuks
Plunger DP NO/NC - 3 A Zinc Alloy 240V 250V - Snap Action OsiSense XC Screw 65mm 31mm
RS-stocknr. 905-5141
FabrikantnummerBNS026R
FabrikantBALLUFF
€ 408,37
Each
Aantal stuks
Plunger 2P NO/NC IP67 6 A Aluminium 250V - M20 Snap Action - Screw 79mm 36mm
RS-stocknr. 814-7936
FabrikantnummerXCKJ10541H7
€ 72,80
Each
Aantal stuks
Roller Lever - NO/NC IP66 - Zamak® Zinc Alloy - - 1/2 NPT Conduit Snap Action OsiSense XC Wire Lead 84mm 42.5mm
RS-stocknr. 360-8562
FabrikantnummerZCKM1H29
€ 27,90
Each
Aantal stuks
- DP NO/NC IP66 10 A Zinc Alloy 240V 250V - Snap Action OsiSense XC Wire Lead 64mm 58.5mm
RS-stocknr. 539-343
Fabrikantnummer83871101
FabrikantCrouzet
€ 50,94
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Aantal stuks
Plunger - NO/NC IP66, IP67 6 A Metal 240V 125V Cable Snap Action - - 69.9mm 30mm
RS-stocknr. 700-4286
FabrikantnummerZCP39
€ 19,50
Each
Aantal stuks
- 3P NO/2NC - 750 mA Plastic 240V 250V - Snap Action OsiSense XC Screw 65mm 31mm
RS-stocknr. 360-8427
FabrikantnummerZCKJ1H29
€ 35,80
Each
Aantal stuks
- DP NO/NC IP65 10 A Metal 240V 250V - Snap Action OsiSense XC Screw 77mm 40mm
RS-stocknr. 808-2750
FabrikantnummerBZE6-2RN18
FabrikantHoneywell
€ 83,92
Each
Aantal stuks
- SPDT NO/NC IP66 15 A Die Cast Zinc 600V 250V 1/2 NPT Snap Action BZE6 Screw 25.4mm 44.4mm
RS-stocknr. 396-2541
FabrikantnummerGXA51C
FabrikantHoneywell
€ 235,10
Each
Aantal stuks
Plunger SPDT NO/NC IP66, IP67 4 A Die Cast Zinc 250V - - Snap Action GXA Wire Lead 102.9mm 42mm
RS-stocknr. 339-421
Fabrikantnummer14CE2-1
FabrikantHoneywell
€ 77,19
Each
Aantal stuks
Roller Plunger SPDT NO/NC IP66 5 A Die Cast Zinc 240V - - Snap Action 14CE Wire Lead 49mm 40mm
RS-stocknr. 749-7634
Fabrikantnummer3SE5122-0CF01
FabrikantSiemens
€ 48,96
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Aantal stuks
Roller Lever DPST NO/NC IP66, IP67 - Metal - - Screw - 3SE5 - 85.7mm 56mm