Relay cards

A wide selection of relay cards for your project.

View as Grid List

Items 1-24 of 64

Page
Set Descending Direction
per page
  1. 1 Channel Optically Isolated Relay Card 24VDC
    $3.49
    SKU: 1RLY24V

    1 relay with logic level input and a 24 volt coil. Learn More
    -
    +
    Add to Compare
  2. 1 Channel Optically Isolated Relay Card 5VDC
    SKU: 1RLY5V

    Single relay module micro controller input, 5 volt coil. Optically isolated. With logic level trigger Learn More
    -
    +
    Add to Compare
  3. 1 Channel Relay Card 12VDC
    $2.50
    SKU: 1RLY12V-R

    Single relay module, 12 volt coil. 

    Learn More
    -
    +
    Add to Compare
  4. 1 Channel Relay Card 12VDC
    $2.75
    SKU: 1RLY12V

    Single channel optically isolated relay module, 12 volt coil. 

    Learn More
    -
    +
    Add to Compare
  5. 16 Channel Relay Card 12 VDC (Assembled)
    $14.95
    SKU: 16RLY12V

    16 relays on one card, logic level inputs, 12 volt coils. Learn More
    -
    +
    Add to Compare
  6. 2 Ch Learning IR Receiver Ver 2.0
    $34.95
    SKU: VK038

    Two 10 amp SPST relays on a small PCB form a simple remote control. Good for 5 amps per connection.
    ASSEMBLED & TESTED Learn More
    -
    +
    Add to Compare
  7. 2 Channel Optically Isolated Relay Card 12VDC
    SKU: 2RLY12V-R

    2 x 12 volt relay card with opto isolators and screw terminals Learn More
    -
    +
    Add to Compare
  8. 2 Channel Optically Isolated Relay Card 12VDC
    SKU: 2RLY12V

    2 x 12 volt relays with opto isolators and screw terminals Learn More
    -
    +
    Add to Compare
  9. 2 Channel Optically Isolated Relay Card 24VDC
    SKU: 2RLY24V

    2 x 24 volt relays with opto isolators and screw terminals Learn More
    -
    +
    Add to Compare
  10. 2 Channel Optically Isolated Relay Card 5VDC
    SKU: 2RLY5V

    Double relay card with logic level inputs and 5 volt supply for the coils Learn More
    -
    +
    Add to Compare
  11. 2 Channel serial Relay I/O card
    $34.95
    SKU: VK039

    Mini 2 channel Relay card for simple control functions from your PC or Arduino. NEW ITEM
    Assembled & Tested Learn More
    -
    +
    Add to Compare
  12. 2 channel solid state relay 5V OMRON SSR G3MB-202P Solid State Relay with Resistive PICO Fuse
    SKU: 2CHSSR-1

    Dual channel Solid state relay module. 0 - 240 VAC at 2 amps. Learn More
    -
    +
    Add to Compare
  13. 4 Channel Optically Isolated Relay Card 12VDC
    Special Price $5.95 Regular Price $6.95 As low as $5.50
    SKU: 4RLY12V-R

    4 x 12 volt relay card with opto isolators and screw terminals Learn More
    -
    +
    Add to Compare
  14. 4 Channel Optically Isolated Relay Card 24 VDC
    SKU: 4RLY24V

    4 x 24 volt relays with opto isolators and screw terminals Learn More
    -
    +
    Add to Compare
  15. 4 Channel Optically Isolated Relay Card 5VDC
    SKU: 4RLY5V

    4 Channel Optically Isolated Relay Board 5VDC Learn More
    -
    +
    Add to Compare
View as Grid List

Items 1-24 of 64

Page
Set Descending Direction
per page