G3MB-202P 2-Channel SSR Relay Module 5V 2A 240VAC
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Prices updated: 13 Oct 2026
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About this product
A 2-channel solid state relay module built around the G3MB-202P, switching AC loads up to 2 A at 240 VAC from a 5 V logic signal. It suits lighting control and low-power AC switching projects, such as holiday light displays. Mains wiring must be isolated and handled according to local electrical safety practice.
Specifications
- Number of channels
- 2
- Operating voltage
- 5 V
- Operating current
- 16 mA
- Control input
- 0–0.5 V: relay ON; 3.3–5 V: relay OFF; 0.5–3.3 V: undefined
- Maximum load
- 2 A @ 240 VAC
- Load voltage range (G3MB-202P)
- 5–240 VAC
- Output protection
- Resistive fuse
Frequently asked questions
Can this module switch 120 V or 240 V lights directly?
The listing states it handles loads up to 2 A at 120 V or 240 V AC. Mains wiring is hazardous: isolate the supply, use an enclosure, keep the load within 2 A, and have a qualified person wire it.
How do I drive the control input from an Arduino?
Connect the control pin to a digital output and the module ground to the Arduino ground. As listed, a LOW signal (0–0.5 V) turns the relay on and a HIGH signal (3.3–5 V) turns it off, so avoid the 0.5–3.3 V band.
