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RLY104 Conveniently add relay outputs to your project LED indicator for each relay Four SPDT relays and drivers Accepts TTL logic level inputs Screw terminals for inputs and outputs

General Description

This relay board provides a convenient way to add relay outputs to your project, allowing you to switch high-current loads such as AC appliances, motors, and more. This board includes four SPDT relays, relay driver circuits, and protection diodes. Simply provide the board with power, connect your logic-level signals to the inputs, and the relay contacts are ready to use. The relay contacts are electrically isolated from the rest of the board, which allows the board to be used in a wide variety of applications.

With this relay board, any logic-level signal (5V) or higher-voltage signal (up to 30V) can be used to control a relay. Examples of logic-level signals include the outputs of a PC's parallel port, microcontroller output pins, and many others.

For a similar board without built-on driver circuitry, please click here.

The board is available with three different relay coil voltages (5, 12, 24 VDC), allowing you to choose whichever is most conveniently available for your project. Suitable unregulated wall power supplies for the 5V and 12V models are available below. Please note that the relay coil voltage you select has no effect whatsoever on the voltages you can switch with the relay contacts.

For mounting on a panel, we suggest the rubber feet version (-FT), 1/4" nylon standoffs under the mounting holes, and #6 screws.

For more information, please see:

•  RLY104 Datasheet
•  RLY104 Schematic

Features

• LED indicator for each relay
• Relay contacts rated for 15A at 250VAC
• Screw terminals and 0.1" header provided for input control signals (either can be used)
• Screw terminals provided for outputs (accepts 12-24 AWG wire)
• Screw terminals and DC power jack provided for power input
• Approximate dimensions: 3.0" x 6.2"
• Rubber feet or DIN rail mount

DIN Rail Mount Version The relay board is also available with DIN rail mounting clips for quick and convenient mounting where DIN rail is used. The clips allow mounting on standard 35mm rail as well as 32mm rail.

Pricing and Ordering

Please call for pricing at higher quantities. Please visit our ordering page for our ordering policies and a list of ordering methods.
What is RoHS? If you need a RoHS version of a non-RoHS product, please contact us.