High quality 16 channel module. Consists of sixteen switching relays, each of which can switch current up to 10A at 220 volts AC or DC.
The relay coils are powered from 12 volts DC, which makes it possible to use it in a car or connect it to a power supply. The control signal is logical zero.
Overall dimensions 180x80 mm, height with leads 20 mm. Distances between the centers of the mounting holes: 172 and 74 mm. Hole diameter 3 mm.
The module contains opto-transistor switches, due to which it can be connected directly to microcontrollers (Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic), while providing galvanic isolation from the control circuit.
The board also has+5V pins from the built-in stabilizer for powering external devices.