This relay module changes the direction of the drive current to the Peltier module in response to the heating/cooling control (SSR drive voltage output) signal from the temperature controller by simply connecting a DC power source to the outside.
Specifications
Input points: 2 points (IN1, IN2, GND common)
Input type: Voltage DC12V +/- 1V (ON), DC0V to +1V (OFF)
Minimum input time: 2ms or more (level input)
Input resistance: 2.8kΩ
Input connection method: Terminal block, Screw M3
Output points: 1 point
Output type: Connect to peltier drive output (OUT1, OUT2)
Output type: ON/OFF
Output voltage: DC8 - 24V (voltage depends on an external supply power voltage, Polarity depends on inversion function by input)
Maximum load current: 16A (ambient temperature 0 - 50℃)