Device specification :

• Board comes fully assembled!

• PCB board dimension 130mm x 150mm

• Operation DC voltage – 12V DC

• Maximum current @12.0V DC – 1000mA

• Maximum current per relay – up to 30A

• LEDs indicators for each electromagnetic relay channel

• Relays with SPDT switch contacts: Normally Open, Common, Normally Closed

• Relay contact resistance 100 milliohms max. ( initial value )

• Relay insulation resistance 100 MOhm min. (DC 500V)

• Relay operation time 8 ms max

• Relay release time 5ms max

• Relay dielectric strength 750 VAC, 50/60Hz between contact

• Relay dielectric strength 1,500 VAC, 50/60Hz between all elements

• Relay expected life Mechanical - 10,000,000 operations min.

• Relay expected life Electrical - 100,000 operations min. at rated load

• Working temperature range - 25 C ~ + 80 C

• Comes with different slave address 0x27 or 0x3F, depends on the batch

• Each board can be assigned an I2C address between 0x20...0x27 (0x38...0x3F) by the DIP switch

• The module contains an PCF8574 or PCF8574A chip

• The logic power supply voltage should match the voltage levels on the I2C bus. The SDA and SCL lines are pulled up to VDD with 5.6k resistors on the relay module.

• Up to 8 boards can be connected to each I2C bus.

USER MANUAL available here - USER MANUAL / DATASHEET

Arduino sample codes:

• Arduino sample code for 0x27 slave address - google drive hyperlink

• Arduino sample code for 0x3F slave address - google drive hyperlink

• Code for controlling each channel separately - google drive hyperlink

• Multiboards controlling code - google drive hyperlink

• Device controlling via ESP8266 and REMOTEXY APP - youtube hyperlink

Shipping information:

• Worldwide shipping with/without tracking number.

• Please track your tracking number at 17track.net or track-trace.com.

• Dispatching next business day.

• Estimated delivery time to Europe 5-14 business days, others countries up to 30 days.

• For express shipping please contact before order

Free contact me, if you have any question !