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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กำลังดูสินค้า 1 - 20 รายการจาก 35 รายการ / Viewing 1 - 20 of 35 products
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รายละเอียดสินค้า / Description ราคา / Price 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 Stock No. 539-218
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.83873101
Brand :Crouzet
THB1,735.73
Each
Units
Lever - NO/NC IP66, IP67 6 A Metal 240V 125V Cable Snap Action - - 76.6mm 30mm
RS Stock No. 539-274
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.83106030
Brand :Crouzet
THB461.17
Each
Units
Plunger SPDT NO/NC - 17.5 A Polyamide 250V - - - - Solder Tag 19mm 32mm
RS Stock No. 539-347
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.83151012
Brand :Crouzet
THB12,103.11
Each
Units
Plunger SP NO/NC - - - - - - - - Solder Tag - -
RS Stock No. 323-9324
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.83845701
Brand :Crouzet
THB5,286.49
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 323-9330
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.79210997
Brand :Crouzet
THB158.57
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 539-258
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.83229001
Brand :Crouzet
THB1,501.90
Each
Units
Plunger SP NO/NC - 10 A Polyamide 250V - Solder Pin - - - 13.15mm -
RS Stock No. 539-343
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.83871101
Brand :Crouzet
THB1,666.41
Each
Units
Plunger - NO/NC IP66, IP67 6 A Metal 240V 125V Cable Snap Action - - 69.9mm 30mm
RS Stock No. 174-6189
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.83-733-327
Brand :Crouzet
THB2,457.92
Each
Units
Plunger SP NO/NC IP56 5 A Metal 250V - Cable Single Break - - 46.5mm 22mm
RS Stock No. 539-236
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.83139103
Brand :Crouzet
THB1,345.75
Each
Units
Plunger SPDT - - - - - - - - - Wire Lead - -
RS Stock No. 539-303
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.83872101
Brand :Crouzet
THB2,322.58
Each
Units
Plunger - NO/NC IP66, IP67 6 A Metal 240V 125V Cable Snap Action - - 85mm 30mm
RS Stock No. 539-286
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.83870101
Brand :Crouzet
THB1,562.13
Each
Units
Plunger - NO/NC IP66, IP67 6 A Metal 240V 125V Cable Snap Action - - 69.9mm 30mm
RS Stock No. 539-214
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.83874101
Brand :Crouzet
THB2,448.38
Each
Units
Plunger - NO/NC IP66, IP67 6 A Metal 240V 125V Cable Snap Action - - 74.8mm 30mm
RS Stock No. 539-319
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.83106022
Brand :Crouzet
THB443.94
Each
Units
Plunger SPDT NO/NC - 17.5 A Polyamide 250V - - - - Quick Connect 19mm 32mm
RS Stock No. 539-353
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.83871301
Brand :Crouzet
THB2,575.55
Each
Units
Plunger - NO/NC IP66, IP67 100 mA Metal 30V 30V Cable Snap Action - - 49mm 30mm
RS Stock No. 539-325
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.83872301
Brand :Crouzet
THB3,825.18
Each
Units
Plunger - NO/NC IP66, IP67 100 mA Metal 30V 30V Cable Snap Action - - 49mm 30mm
RS Stock No. 539-264
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.83589801
Brand :Crouzet
THB2,006.56
Each
Units
Plunger SP NO/NC IP66, IP67 5 A Thermoplastic 250V 24V - - - - 70mm 25mm
RS Stock No. 539-296
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.83733327
Brand :Crouzet
THB1,958.79
Each
Units
Plunger SP NO/NC IP56 5 A - 250V - Cable - - Wire Lead 36mm 49mm
RS Stock No. 539-230
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.83118007
Brand :Crouzet
THB1,233.45
Each
Units
Lever SP NO/NC - 17.5 A Plastic 250V - Screw - - - 29.4mm 43mm
RS Stock No. 323-9295
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.83840701
Brand :Crouzet
THB3,338.58
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 539-315
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.83731324
Brand :Crouzet
THB2,225.72
Each
Units
Plunger SP NO/NC IP66 5 A - 250V - Cable - - Wire Lead 49.5mm 49mm