The small single-pole, double-throw (SPDT) limit switch is ideal for keeping track of physical parts in a system. It can also be used as a simple user input button as it makes a noticeable click when pressed. The maximum switching ratings can be found in the manufacturer's datasheet which you should be sure to have a look at. The maximum current that can be switched will vary with voltage. This switch belongs to the RV-16 series.
| Sensor Properties | |
|---|---|
| Sensor Type | Input (Switch) | 
| Switch Type | SPDT | 
| Controlled By | Digital Input (5V) | 
| Manufacturer Part Number | RV-16 | 
| Physical Properties | |
| Travel | 4 mm | 
| Electrical Properties | |
| Switching Voltage Max (AC) | 250 V AC | 
| Switching Voltage Max (DC) | 250 V DC | 
| Customs Information | |
| Canadian HS Export Code | 8536.50.00 | 
| American HTS Import Code | 8536.50.90.65 | 
| Country of Origin | CN (China) | 
This switch can be read by connecting one end to a digital input and the other end to the ground pin of the same board. Here's a list of boards with digital inputs:
| Product | Digital Inputs | Board Properties | ||
|---|---|---|---|---|
| Part Number | Price | Number of Digital Inputs | Digital Input Voltage Max | Controlled By | 
|  VINT Hub Phidget | $40.00 | 6 (Shared) | 5.5 V DC | USB (Mini-USB) | 
|  1-Port VINT Hub Phidget | $26.00 | 1 (Shared) | 5.5 V DC | USB (USB-A) | 
|  VINT Hub Phidget | $35.00 | 6 (Shared) | 5.5 V DC | USB (Mini-USB) | 
|  Wireless VINT Hub | $65.00 | 6 (Shared) | 5.5 V DC | Local Network (Ethernet or Wi-Fi) | 
|  PhidgetInterfaceKit 0/16/16 | $95.00 | 16 | ± 30 V DC | USB (Mini-USB) | 
|  PhidgetInterfaceKit 8/8/8 | $80.00 | 8 | ± 5.3 V DC | USB (Mini-USB) | 
|  PhidgetInterfaceKit 2/2/2 | $50.00 | 2 | ± 15 V DC | USB (Mini-USB) | 
|  16x Isolated Digital Input Phidget | $50.00 | 16 | 30 V DC | VINT | 
|  4x Digital Input Phidget | $15.00 | 4 | 5 V DC | VINT | 
|  4x Isolated Digital Input Phidget | $20.00 | 4 | 30 V DC | VINT | 
|  PhidgetInterfaceKit 8/8/8 | $80.00 | 8 | ± 15 V DC | USB (Mini-USB) | 
|  PhidgetInterfaceKit 8/8/8 Mini-Format | $70.00 | 8 | ± 15 V DC | USB (Mini-USB) | 
|  PhidgetInterfaceKit 8/8/8 w/6 Port Hub | $110.00 | 8 | ± 15 V DC | USB (Mini-USB) | 
|  PhidgetMotorControl 1-Motor | $75.00 | 2 | ± 15 V DC | USB (Mini-USB) | 
|  PhidgetTextLCD 20X2 : White : Integrated PhidgetInterfaceKit 8/8/8 | $70.00 | 8 | ± 15 V DC | USB (Mini-USB) | 
You may need hook-up wire to connect the switch terminals to your circuit, InterfaceKit or Hub. Here's a list of wire that we sell for this purpose:
| Product | Physical Properties | ||
|---|---|---|---|
| Part Number | Price | Cable Length | Cable Gauge | 
|  Phidget Cable Extension Wire 22AWG | $0.75/Meter | — | 22 AWG | 
|  Hook-up Wire 14AWG Black | $0.75/Meter | — | 14 AWG | 
|  Hook-up Wire 14AWG Red | $0.75/Meter | — | 14 AWG | 
|  Hook-up Wire 18AWG Black | $0.50/Meter | — | 18 AWG | 
|  Hook-up Wire 18AWG Red | $0.50/Meter | — | 18 AWG | 
|  Hook-up Wire 22AWG Black | $0.25/Meter | — | 22 AWG | 
|  Hook-up Wire 22AWG Blue | $0.25/Meter | — | 22 AWG | 
|  Hook-up Wire 22AWG Brown | $0.25/Meter | — | 22 AWG | 
|  Hook-up Wire 22AWG Green | $0.25/Meter | — | 22 AWG | 
|  Hook-up Wire 22AWG Red | $0.25/Meter | — | 22 AWG | 
|  Hook-up Wire 22AWG White | $0.25/Meter | — | 22 AWG | 
|  Hook-up Wire 22AWG Yellow | $0.25/Meter | — | 22 AWG | 
|  2 wire 100' Twisted Cable | $4.00 | 30.5 m | 26 AWG | 
| Product | Sensor Properties | |||
|---|---|---|---|---|
| Part Number | Price | Sensor Type | Controlled By | Switch Type | 
|  Long Lever Micro Switch (Bag of 2) | $2.00 | Input (Switch) | Digital Input (5V) | SPDT | 
|  Roller Micro Switch (Bag of 2) | $2.00 | Input (Switch) | Digital Input (5V) | SPDT | 
|  Short Lever Micro Switch (Bag of 2) | $2.00 | Input (Switch) | Digital Input (5V) | SPDT | 
|  Micro Switch SPDT (Bag of 2) | $2.00 | Input (Switch) | Digital Input (5V) | SPDT | 
|  Roller Micro Switch SPDT (Bag of 2) | $3.00 | Input (Switch) | Digital Input (5V) | SPDT | 
|  Roll Ball Switch | $2.50 | Input (Switch) | Digital Input (5V) | SPST | 
|  Waterproof Adjustable Rod Limit Switch | $8.00 | Input (Rod Switch) | — | SPDT Double Break | 
|  Waterproof Adjustable Roller Limit Switch | $8.00 | Input (Roller Switch) | — | SPDT Double Break | 
|  Waterproof Button Limit Switch | $8.00 | Input (Button Switch) | — | SPDT Double Break | 
|  Waterproof Flex Switch | $8.00 | Input (Flex Switch) | — | SPDT Double Break | 
|  Waterproof Roller Limit Switch | $8.00 | Input (Limit Switch) | — | SPDT Double Break | 
|  Magnetic Contact Switch | $2.50 | Proximity (Magnetic) | Digital Input (5V) | SPST | 
|  Miniature Magnetic Contact Switch | $2.50 | Proximity (Magnetic) | Digital Input (5V) | SPST |