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8 Channel SPDT Relay
8 Channel SPDT Controller Board
SPDT Single Pole Double Throw Relay
 SPDT Single Pole Double Throw Relays have three connections. Common, Normally Open, and Normally Closed. When the relay is off, the common is connected to the normally closed connection of the relay. When the relay coil is energized, the Common swings over to the Normally Open Connection of the Relay.
Large Selection
We offer a large selection of Eight Channel SPDT Relay Boards for applications ranging from small signal switching to high voltage, high current applications. If your looking for a 802.15.4 Wireless SPDT Relay, USB SPDT Relay or Bluetooth SPDT Relay we have the largest connection options around.
Latest Advancements
Look for our ProXR series controllers for the latest advancements in signal switching! The ProXR Series is capable of controlling up to 256 relays. Control one relay at a time or all 256 relays at once with manual and automatic refreshing command set! With our SPDT signal switching, the ProXR Series are built from the ground up with Expansion in mind. Simply Chain the
XR Expansion Modules, one after another, to meet your computer controlled switching requirements. Your system will grow as your needs grow by simply plugging in modules as needed. All boards in the ProXR Series will have the ProXR suffix in the part number. For more detailed information and to order, please click on the links below.
8-Channel SPDT Relay Boards
RS-232 8-Channel Relay Driver Board with 5 Amp Relays
Professional RS-232 8-Channel Relay Driver Board with 10 Amp Relays
8-Channel 20-Amp SPDT High-Power Latching Relay Board
Hybrid 8-Channel 5-Amp SPDT Latching Relay Board with Integrated I/O + A/D
Hybrid 8-Channel 10-Amp SPDT Latching Relay Board with Integrated I/O + A/D
Hybrid 8-Channel 20-Amp SPDT Latching Relay Board with Integrated I/O + A/D
8-Channel 5A SPDT Relay + 8-Channel 150ma O.C. Output RS-232 Latching Relay Board
8-Channel 10A SPDT Relay + 8-Channel 150ma O.C. Output RS-232 Latching Relay Board
USB Latching Relay Board 8-Channel 5 Amp SPDT + 8-Channel 8/10-Bit A/D
USB Latching Relay Board 8-Channel 10 Amp SPDT + 8-Channel 8/10-Bit A/D
RS-232 Latching Relay Board 8-Channel 5 Amp SPDT + 8-Channel 8/10-Bit A/D
RS-232 Latching Relay Board 8-Channel 10 Amp SPDT + 8-Channel 8/10-Bit A/D
Bluetooth Relay Controller 8-Channel 5 Amp SPDT + 8-Channel 8/10-Bit A/D
Bluetooth Relay Controller 8-Channel 10 Amp SPDT + 8-Channel 8/10-Bit A/D
Fiber Optic Relay Controller 8-Channel 5 Amp SPDT + 8-Channel 8/10-Bit A/D
Fiber Optic Relay Controller 8-Channel 10 Amp SPDT + 8-Channel 8/10-Bit A/D
Ethernet 8-Channel 10-Amp SPDT Relay Controller + 8-Channel 8/10-Bit A/D
Ethernet 8-Channel 5-Amp SPDT Relay Controller + 8-Channel 8/10-Bit A/D
Ethernet 8-Channel 10-Amp SPDT Relay Controller + UXP Expansion Port
Ethernet 8-Channel 5-Amp SPDT Relay Controller + UXP Expansion Port
WiFi 802.11b 8-Channel 10-Amp SPDT Relay Controller + 8-Channel 8/10-Bit A/D
WiFi 802.11b 8-Channel 5-Amp SPDT Relay Controller + 8-Channel 8/10-Bit A/D
WiFi 802.11b 8-Channel 10-Amp SPDT Relay Controller + UXP Universal Expansion Port
WiFi 802.11b 8-Channel 5-Amp SPDT Relay Controller + UXP Universal Expansion Port
802.15.4 Wireless Relay Controller 8-Channel 10 Amp SPDT + 8-Channel 8/10-Bit A/D
XSC Long Range Wireless Controller 8-Channel 10 Amp SPDT + 8-Channel 8/10-Bit A/D
ZB ZigBee Mesh Networking Relay Controller 8-Channel 10 Amp SPDT + 8-Channel 8/10-Bit A/D
802.15.4 Wireless Relay Controller 8-Channel 5 Amp SPDT + 8-Channel 8/10-Bit A/D
XSC Long Range Wireless Controller 8-Channel 5 Amp SPDT + 8-Channel 8/10-Bit A/D
ZB ZigBee Mesh Networking Relay Controller 8-Channel 5 Amp SPDT + 8-Channel 8/10-Bit A/D
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Relay Series
RS232 Relays
ZB ZigBee Relays
Bluetooth Relays
Fiber Optic Relays
USB Relays
Ethernet Relays
WiFi Relays
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