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Solid State Relay Module (4 Channel)



  • Part Number: G3MB-202P
  • Power supply: 24VDC/160mA
  • Switching Voltage (VAC): 240@2A
  • Isolation: Phototriac

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This is 4 Channel 24V Solid State Relay Module. A solid-state relay (SSR) is just what it sounds like; an IC that acts like a mechanical relay. They allow you to control high-voltage AC loads from lower voltage DC control circuitry. They accomplish this by using infrared light as the ‘contact,’ a solid-state relay is really just an IR LED and a photo Triac sealed up into a little box. Solid-state relays have several advantages over mechanical relays.

A Solid State Relay is similar to a mechanic relay where it can be controlled through a digital signal. Solid State Relay generates no noise and has a much longer lifespan compared to the traditional mechanic relay.

When the input logic voltage is applied to the coil, the NC will disconnect from the COM breaking the conductivity between the two. At the same time, the NO will connect with the COM allowing conductivity between them. Depending on your wiring this will turn on or off the connected load.

Input Parts :
DC+: connected to VCC (Supply power according to relay voltage)
DC-: connected to GND
DC+: connect power positive
DC-: connect power negative
CH1: relay module signal trigger point (Effective low-level trigger)
CH2: relay module signal trigger point (Effective low-level trigger)
CH3: relay module signal trigger point (Effective low-level trigger)
CH4: relay module signal trigger point (Effective low-level trigger)


  • 4 channel 2 AMP Solid State Relay board
  • Control 4 loads of up to 2 amps each at 120V or 240V AC.
  • Good for lighting, holiday displays etc.
  • Has been assembled, and the electrical test passed.
  • Led indicator for each relay.
  • Use it to control various appliances and other equipment with a large current.
  • It can be controlled directly by Microcontroller

* Product Images are shown for illustrative purposes only and may differ from actual product.

Package Includes:

  • 1 x G3MB Solid-State Relay Module with Fuse SSR 250V 2A Fuse


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