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1-Channel 5V Relay Module with High/Low Trigger

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1-Channel 5V Relay Module with High/Low Trigger

Brand NZN Electronics CLICK IT SKU CLICK-IT-279322 Category Components

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  • Brand NZN Electronics

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NZN Electronics

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Overview

A single-channel relay board that lets an Arduino or other 5V controller switch a separate circuit on and off. The relay contacts handle up to 10A at 250VAC, a jumper sets whether the input switches on with a high or low signal, and the input goes through an optocoupler.

Using a 3.3V board such as an ESP32 or Pico? Choose the 1-Channel 3.3V Relay Module instead.

Specifications

Supply5V DC on DC+ and DC-
Load limit, AC10A at 250VAC, 10A at 125VAC
Load limit, DC10A at 30VDC
ContactsSPDT: COM, NO and NC
TriggerHigh or low, set by jumper
Trigger voltageHigh 3-5V, low 0-1.5V
Input current2-4mA
Board current190mA max, relay on
PCB sizeApprox. 51 x 25.5 mm

Datasheets

Full technical datasheetPDF

What’s in the box

1×
1-Channel 5V Relay Module with High/Low Trigger

Assembled board with screw terminals fitted.

Great for

Switching a 12V pump, fan or LED strip from an Arduino
Solenoid valves, door strikes and buzzers
Turning a lamp on and off from a timer or sensor

Wiring & getting started

  1. Set the trigger

    With power off, move the jumper to H to switch the relay on with a high signal, or to L to switch it on with a low signal.

  2. Power and signal

    Connect 5V DC to DC+ and DC-. Join DC- to your controller’s ground and connect its output pin to IN. Power the board from a 5V rail, not from a GPIO pin.

  3. Test before adding the load

    With nothing on the contacts, switch the input. The relay should click and the indicator light, and COM should connect to NO. When released, COM connects to NC.

  4. Connect the load

    Turn everything off. Run the load circuit through COM and NO to switch it on when triggered, or through COM and NC to switch it off when triggered. Stay within the load limits.

Note: Mains voltage can kill. Only wire mains loads if you are competent to do so, fully enclose the board so no terminal or solder joint can be touched, and follow NZ electrical safety rules. Motors and lamps draw a surge at switch-on, so leave margin below the limits.

Specification

Specification for 1-Channel 5V Relay Module with High/Low Trigger
CLICK IT SKU CLICK-IT-279322
Brand NZN Electronics

Features

A single-channel relay board that lets an Arduino or other 5V controller switch a separate circuit on and off. The relay contacts handle up to 10A at 250VAC, a jumper sets whether the input switches on with a high or low signal, and the input…

  • Brand NZN Electronics

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