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 378 รายการ / Viewing 1 - 20 of 378 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. 360-8584
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ZCKM1
THB1,241.88
Each
Units
- DP NO/NC IP66 10 A Zinc Alloy 240V 250V - Snap Action OsiSense XC Wire Lead 64mm 58.5mm
RS Stock No. 447-3806
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ZCMD21
THB1,288.24
Each
Units
- DP NO/NC - 1.5 A Zinc Alloy 240V 250V - Snap Action OsiSense XC Plug 50mm 30mm
RS Stock No. 447-3834
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XCMD2110L1
THB1,831.19
Each
Units
Plunger DP NO/NC IP66, IP67, IP68 1.5 A Zinc Alloy 240V 250V - Snap Action OsiSense XC Wire Lead 50mm 30mm
RS Stock No. 447-3575
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ZCP21
THB599.74
Each
Units
- DP NO/NC - 1.5 A Plastic 240V 250V - Snap Action OsiSense XC Screw 65mm 31mm
RS Stock No. 418-5947
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XCRE18
THB7,441.60
Each
Units
Lever 4P 2NO/2NC IP54 3 A Zinc Alloy 240V 250V - Snap Action OsiSense XC Screw 95mm 85mm
RS Stock No. 418-6108
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ZCKS1
THB842.35
Each
Units
- DP NO/NC IP65 10 A Plastic 240V 250V - Snap Action OsiSense XC Screw 72.5mm 40mm
RS Stock No. 447-3840
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XCMD2102L1
THB2,498.22
Each
Units
Plunger DP NO/NC IP66, IP67, IP68 1.5 A Zinc Alloy 240V 250V - Snap Action OsiSense XC Wire Lead 50mm 30mm
RS Stock No. 235-931
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XCKJ167H29
THB4,562.31
Each
Units
Plunger SPDT NO/NC IP66 10 A Zinc Alloy 240V 250V - Snap Action OsiSense XC Screw 77mm 40mm
RS Stock No. 360-8455
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ZCKJ1
THB1,665.72
Each
Units
- DP NO/NC IP65 10 A Metal 240V 250V - Snap Action OsiSense XC Screw 77mm 40mm
RS Stock No. 609-6675
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XCRF17
THB8,423.48
Each
Units
Lever 4P 2NO/2NC IP54 3 A Zinc Alloy 240V 250V - Snap Action OsiSense XC Screw 95mm 85mm
RS Stock No. 814-8589
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.9007MS02S0084
THB5,604.36
Each
Units
Roller Plunger SPDT NO/NC IP67 10 A Zamak® Zinc Alloy 125 V, 240 V 28V M12 Single Break 9007 4 Pin 44.4mm 40.1mm
RS Stock No. 609-3856
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ZCMD21L2
THB1,693.85
Each
Units
- DP NO/NC - 1.5 A Zinc Alloy 240V 250V - Snap Action OsiSense XC Wire Lead 50mm 30mm
RS Stock No. 280-8799
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XCKM106
THB1,968.53
Each
Units
Coil Spring DP NO/NC IP66 10 A Zinc Alloy 240V 250V - Snap Action OsiSense XC Screw 64mm 63mm
RS Stock No. 447-3597
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ZCP25
THB583.59
Each
Units
- DP NO/NC - 1.5 A Plastic 240V 250V - Slow Action OsiSense XC Screw 65mm 31mm
RS Stock No. 422-9463
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.9007TUB4M11
THB7,339.67
Each
Units
Lever SPDT NO/NC IP66 150 A Die Cast Zinc 600V 600V - Snap Action 9007 Conduit 61.98mm 59mm
RS Stock No. 244-749
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XCKJ10513H29
THB2,573.95
Each
Units
Lever SPDT NO/NC IP66 10 A Zinc Alloy 240V 250V - Snap Action OsiSense XC Screw 77mm 40mm
RS Stock No. 447-3474
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XCKD2102P16
THB1,464.95
Each
Units
Plunger DP NO/NC - 3 A Zinc Alloy 240V 250V - Snap Action OsiSense XC Screw 65mm 31mm
RS Stock No. 125-8467
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XCKVR54D1H29
THB11,556.12
Each
Units
Crossed Rods Lever 4P 2NC IP65 10 A PBT+PC GF30 FR, Plastic 240V 125V Screw Clamp Slow Break OsiSense XC Screw 200mm 57mm
RS Stock No. 235-953
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XCKJ10541
THB3,067.25
Each
Units
Lever SPDT NO/NC IP66 10 A Metal 600V 600V - Snap Action OsiSense XC Screw 77mm 40mm
RS Stock No. 447-3604
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ZCD21
THB745.30
Each
Units
- DP NO/NC - 1.5 A Metal 240V 250V - Snap Action OsiSense XC Screw 65mm 31mm