Relay cards
A wide selection of relay cards for your project.
- 8 Ch Relay Card 12VDC$89.95
SKU: RLC128
Versatile 8 Channel Relay Card with wide voltage control and blue LEDs. 12VDC version. Learn More - 8 Channel Relay Card (Assembled)$39.95
SKU: VM129
The purpose of this card is to convert electronic outputs or contacts to relay contacts. This results in a practical isolation between load and driving circuit. Learn More - 8 Channel Relay Card 12VDC (Assembled)$9.25 As low as $8.75
SKU: 8RLY12V
8 relays on one board, logic level inputs. 12 volt coils. Learn More - 8 Channel Relay Card 24 VDC (Assembled)$9.95
SKU: 8RLY24V
8 x 24 volt relay card with opto isolators and screw terminals Learn More - 8 Channel Relay Card 24VDC$98.95
SKU: RLC-248
Eight-way relay card. This card includes a relay driver allowing a very wide range of input configurations. The driver allows direct connection to many logic families, industrial sensors (NPN or PNP) dry contacts or voltage outputs. Learn More - 8 Channel Relay Card 5VDC (Assembled)$8.95
SKU: 8RLY5V
8 relays on one board, logic level inputs. 5 volt coils. Learn More - 8 Channel Relay Card with ESP8266 12VDC (Assembled)$18.95
SKU: ESP8RLY12V
8 relays on one board, wired to an ESP8266. 12 volt.
Learn More - 8 Channel Remote Relay Kit$34.95
SKU: K8056
Use relay card as stand alone, addressed by switches or open collector outputs or remote controlled through RS232. Use with your Arduino or Raspberry Pi. Learn More - 8 channel serial relay module$89.95
SKU: VA108
8 channel serial relay module with RS232 interface and USB connection. Also includes 4 optically isolated inputs. Learn More - 8 Channel USB Relay Board - Assembled$104.95
SKU: VM8090
Eight relay channels controlled by your computer!
Use your computer USB port to connect to the outside world
Learn More - 8 Channel USB Relay Kit$79.95
SKU: K8090
8 Channel USB Relay Kit
Assembly Required. For the assembled module, order VM8090 Learn More - Delay Power Off Relay$6.95
SKU: DPWOFFRLY
1 Channel Delay Power-Off Relay Module with Cycle Timing Circuit Switch Learn More -
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- DMX Controlled Relay Module (Assembled)$59.95
SKU: VM138
This module allows you to control a relay by means of the well-known DMX512 protocol. Learn More - DMX Controlled Relay Switch Kit$28.95
SKU: K8072
This kit allows you to control a relay by means of the well-known DMX512 protocol. Learn More - Dual HI/LO Switched Relay Kit$12.95
SKU: QK156
Two PCB mounted relays based around a ULN2003A high voltage, high current relay driver. TTL compatible so the inputs can be connected to 5V. LO is 0-0.8VDC. HI is 2.4 - 12VDC. A HI or LO applied to the inputs will activate the relay. Learn More -
- Eight Channel 24VDC Relay Card on DIN Rail$104.95
SKU: RLD-248
Eight-way relay card on DIN Rail mount. This card includes a relay driver allowing a very wide range of input configurations. The driver allows direct connection to many logic families, industrial sensors (NPN or PNP) dry contacts or voltage outputs. Learn More - ESP8266 WiFi Relay Card$12.95
SKU: ESP8266-WiFi
ESP8266 WIFI Relay Module ESP-12F Network Development Board Learn More -
- Ethernet Relay Card$189.95
SKU: VM201
The card simply connects to your (wireless) router by means of a standard network cable. Learn More -
- Four Channel 12VDC Relay Card on DIN Rail$54.25
SKU: RLD-124
Four-way relay card on DIN Rail mount. This card includes a relay driver allowing a very wide range of input configurations. The driver allows direct connection to many logic families, industrial sensors (NPN or PNP) dry contacts or voltage outputs.
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