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.

...
Lees meer Lees minder

Filters

1 - 20 van 37 producten worden weergegeven
Resultaten per pagina
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. 539-296
Fabrikantnummer83733327
FabrikantCrouzet
€ 46,70
Each
Aantal stuks
Plunger SP NO/NC IP56 5 A - 250V - Cable - - Wire Lead 36mm 49mm
RS-stocknr. 539-315
Fabrikantnummer83731324
FabrikantCrouzet
€ 53,07
Each
Aantal stuks
Plunger SP NO/NC IP66 5 A - 250V - Cable - - Wire Lead 49.5mm 49mm
RS-stocknr. 539-343
Fabrikantnummer83871101
FabrikantCrouzet
€ 50,94
Each
Aantal stuks
Plunger - NO/NC IP66, IP67 6 A Metal 240V 125V Cable Snap Action - - 69.9mm 30mm
RS-stocknr. 539-319
Fabrikantnummer83106022
FabrikantCrouzet
€ 15,29
Each
Aantal stuks
Plunger SPDT NO/NC - 17.5 A Polyamide 250V - - - - Quick Connect 19mm 32mm
RS-stocknr. 323-9324
Fabrikantnummer83845701
FabrikantCrouzet
€ 132,67
Each
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 539-286
Fabrikantnummer83870101
FabrikantCrouzet
€ 47,76
Each
Aantal stuks
Plunger - NO/NC IP66, IP67 6 A Metal 240V 125V Cable Snap Action - - 69.9mm 30mm
RS-stocknr. 539-236
Fabrikantnummer83139103
FabrikantCrouzet
€ 44,58
Each
Aantal stuks
Plunger SPDT - - - - - - - - - Wire Lead - -
RS-stocknr. 539-264
Fabrikantnummer83589801
FabrikantCrouzet
€ 41,39
Each
Aantal stuks
Plunger SP NO/NC IP66, IP67 5 A Thermoplastic 250V 24V - - - - 70mm 25mm
RS-stocknr. 539-274
Fabrikantnummer83106030
FabrikantCrouzet
€ 12,74
Each
Aantal stuks
Plunger SPDT NO/NC - 17.5 A Polyamide 250V - - - - Solder Tag 19mm 32mm
RS-stocknr. 539-353
Fabrikantnummer83871301
FabrikantCrouzet
€ 66,86
Each
Aantal stuks
Plunger - NO/NC IP66, IP67 100 mA Metal 30V 30V Cable Snap Action - - 49mm 30mm
RS-stocknr. 323-9239
Fabrikantnummer83 581 001
FabrikantCrouzet
€ 30,78
Each
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 539-246
Fabrikantnummer83870301
FabrikantCrouzet
€ 63,68
Each
Aantal stuks
Plunger - NO/NC IP66, IP67 100 mA Metal 30V 30V Cable Snap Action - - 59.8mm 30mm
RS-stocknr. 539-268
Fabrikantnummer83228001
FabrikantCrouzet
€ 33,96
Each
Aantal stuks
Plunger SP NO/NC - 10 A Polyamide 250V - Solder Pin - - - 7.5mm -
RS-stocknr. 174-6189
Fabrikantnummer83-733-327
FabrikantCrouzet
€ 65,34
Each
Aantal stuks
Plunger SP NO/NC IP56 5 A Metal 250V - Cable Single Break - - 46.5mm 22mm
RS-stocknr. 539-218
Fabrikantnummer83873101
FabrikantCrouzet
€ 53,07
Each
Aantal stuks
Lever - NO/NC IP66, IP67 6 A Metal 240V 125V Cable Snap Action - - 76.6mm 30mm
RS-stocknr. 539-321
Fabrikantnummer83874301
FabrikantCrouzet
€ 74,29
Each
Aantal stuks
Plunger - NO/NC IP66, IP67 100 mA Metal 30V 30V Cable Snap Action - - 49mm 30mm
RS-stocknr. 539-325
Fabrikantnummer83872301
FabrikantCrouzet
€ 77,48
Each
Aantal stuks
Plunger - NO/NC IP66, IP67 100 mA Metal 30V 30V Cable Snap Action - - 49mm 30mm
RS-stocknr. 539-303
Fabrikantnummer83872101
FabrikantCrouzet
€ 61,56
Each
Aantal stuks
Plunger - NO/NC IP66, IP67 6 A Metal 240V 125V Cable Snap Action - - 85mm 30mm
RS-stocknr. 323-9318
Fabrikantnummer83843701
FabrikantCrouzet
€ 102,95
Each
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 539-292
Fabrikantnummer83581101
FabrikantCrouzet
€ 32,90
Each
Aantal stuks
Plunger SP NO/NC IP67 8 A - 250V - Cable - - Wire Lead 53.9mm 31mm