Dual Relay Board Kit

Once properly assembled, the Dual Relay Board Kit allows you to control two high-power devices up to 8 A each via the included Omron mechanical relays.  The Dual Relay Board can be used to turn lights, fans, and motors on/off while keeping them isolated from the microcontroller.  Independent control of each relay is provided via a 2x3 header, making it friendly with servo cables and providing a convenient connection to many development boards, such as the Board of Education, Propeller Board of Education, Professional Development Board and Propeller Professional Development Board. LEDs indicate relay status.
 

Key Features:

• Control two high-power devices with one kit.
• Provides isolation between microcontroller and device being controlled.
• Easy screw terminals for relay contact and power connections.  
• 3-pin servo-style headers for easy connection using standard servo cables.  
• LED indicators provide status of each relay.
   

Application Ideas:

• 120 VAC brushless lighting/fan control.
• 12 VDC automotive applications.
• HVAC duct/damper control.
   

Details:

• Control signals are 3.3 V/5 V compatible.
• Voltage requirements: 12 V.
• Current requirements: 85 mA.
• Communication: TTL/CMOS Logic (high/low).
• Dimensions: 2.3  x 1.8  x 0.7 in (5.8 x 4.6 x 1.8 cm).
• Operating temp range: -40 to +185 °F (-40 to +85 °C).
   

Kit Contents:

• 4 - 2 Position Screw Terminal Block. 
• 1 - Connector, Header, 2x3, 0.1", Straight.   
• 2 - Omron Relay G2RL-14-DC12, SPDT, 12A, 12VDC.    
• 4 - Resistor, 1K, 5%, 1/4W, CF. 
• 2 - LED, Red, T1-3/4. 
• 2 - 1N4004 Diode, Rectifier, 1V, 400V, 1A, Axial.  
• 2 - 2N3904 NPN Transistor, TO-92.   
• 1 - Raw PCB, Dual Relay Board.
   

NOTES: This kit requires assembly. Soldering iron, solder, diagonal cutters and safety glasses are required to assemble this product. A 12 V power supply is required to drive the relays.