Features

• Power supply - 5VDC;
• Current consumption - 1400mA (when all relays are ON);
• 16 SPDT relays - JQC-3F/T73 DC5V or RAS-05-15 (depending on your choice during purchase)*;
• Maximum switching current per single relay channel:
  • For relay type JQC-3F/T73 DC5V (7A / 250VAC,  10A / 125VAC, 12A / 120VAC, 10A / 28VDC);
  • For relay type RAS-05-15  (10A / 250VAC, 15A / 120VAC, 15A / 24VDC);
• Contact type: Normal Opened (NO), Normal Closed (NC);
• Screw terminals for inputs and outputs;
• PCB parameters : FR4 / 1.5mm / two layers / metallized holes / HAL / white stamp / solder mask;
• Extra PCB openings for better voltage isolation;
• Doubled high current tracks;
• Protection diode for each relay;
• Input voltage: 3V - 30V (1.5mA max) must be given to the "In" to switch the relay ON;
• May be controlled directly by TTL;
• Green leds for relay status;
• Red led for power;
• Dimensions: 85mm / 300mm / 20mm;
• Mounting holes diameter: 3mm;
• PCB dimensions - here;

*The difference between two types of relays (RAS and JQC) is that RAS relays can handle bigger amperage (15A max) while JQC can 12A max.

Single relay channel schematic

Add the relay board to your Arduino project

Above is given example for 2 relays only. You can supply either from external power supply source, either from Arduino (however you must consider the maximum allowed current draw from Arduino in this case)

Add the relay board to your Raspberry PI project

Above is given example for 2 relays only. You can supply either from external power supply source, either from Raspberry PI (however you must consider the maximum allowed current draw from Pasrberry PI in this case)