4-Channel 12V Relay Module HW-316 (Optocoupler Isolated)
Prices updated: 12 Oct 2026
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| Store | product | Price | View in store |
|---|---|---|---|
 Microohm | Relay 12v 4 Channel Module 4 Road/Channel Relay Module (with light coupling) 12V HW-316 | 125 EGP145 | View in store |
Price history
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Lowest price recorded: 125 EGP
About this product
A 4-channel relay board with a 12V DC coil, optocoupler input isolation and 10A contacts. It switches loads such as solenoids, motors, lights and fans from a microcontroller. Each channel has a freewheeling diode and an LED status indicator, and screw terminals (C, NC, NO) simplify wiring.
Specifications
- Operating Voltage
- 12V DC
- Number of Channels
- 4
- Contact Rating
- 10A @ 250VAC / 10A @ 30VDC
- Input Isolation
- Optocoupler
- Terminals
- Screw terminal (C, NC, NO)
- Freewheeling Diode
- Yes, per channel
- Status Indicator
- LED per channel
- Mounting
- Mounting holes provided
Frequently asked questions
What is the price of 4-Channel 12V Relay Module HW-316 (Optocoupler Isolated) in Egypt?
4-Channel 12V Relay Module HW-316 (Optocoupler Isolated) currently costs 125 EGP in Egypt.
Where can I buy 4-Channel 12V Relay Module HW-316 (Optocoupler Isolated) in Egypt?
4-Channel 12V Relay Module HW-316 (Optocoupler Isolated) is available from Microohm. Compare the offers above to find the best price.
Can I drive this relay board directly from a 3.3V or 5V microcontroller?
The relay coils run at 12V DC, so the relay side needs a 12V supply. The input side is optocoupler-isolated, but check the board's input trigger level and polarity against your microcontroller's GPIO before wiring. Connect grounds together.
Can it switch mains AC loads?
The contacts are rated 10A at 250VAC, so AC loads within that rating can be switched. Mains wiring should be enclosed, properly insulated, and done by a qualified person.
