Device specification :

• Board comes fully assembled!
• PCB board dimension 72mm x 100mm
• Compatible with DIN rail plastic holder
• Operation DC voltage – 3.3V and 5.0V
• Maximum current @5.0V – 350mA
• Maximum current per relay – 5A ...10A @ different voltages
• 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 (usually come PCF8574)
• 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.
• Depending on the relay stock available, the relay manufacturer may differ

Arduino sample codes:

Arduino UNO demo code - https://drive.google.com/open?id=1VgnvLgiXbhZL-pq_Y6MNucw6julmfd_h

Wemos D1 ESP8266 demo code - https://drive.google.com/open?id=1CNunB-4hR0OPuSdoSIshmVMVZ8lcdJUh

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 !