Size：Long72mmXWidth67mmXHigh40mmTwo、 Main chip：Relay Optical coupling TriodeThree、 Working voltage：12V（The working voltage is equal to the rated working voltage of the relay.）Another24VOptional，If you want other operating voltages, please explain separately.。Four、 Features：1、HasPower worksIndicator light。 2、Input signalHasWorkIndicator light。 3、Output signalHasWorkIndicator light

4、Board power consumption is less2W

5、Realize positive and reverse control of DC motor。 6、Easy wiring, easy control。

7、Stable and reliable operation 8、Rated switching current10AWithin 9、Maximum switching power500W 10、Relay life10000000More than once。 11、Electrical insulation resistance100M 12、Electric shock and pressure resistance1000V 13、Maximum suction time of relay15mS Milliseconds 14、Maximum release time of relay5mS Milliseconds 15、Working temperature-40Degree +70Degree

16、Working humidity 40% ~ 80%RH

Instructions for Use：

【Labeling instructions】

Function description：The function of this module is to realize positive and reverse control of DC motor.，But speed regulation cannot be realized。The advantage is that the power is high，Low cost，Works reliably，Wide control voltage range、No fever。The power supply voltage of the board is determined by the rated working voltage of the relay.，For example，Relay is12VOf，The power supply voltage of the board is12V。Input control signal voltage3.3V~30VBetween。Input signal is isolated by optical coupling signal，The optical coupling signal is connected and disconnected by controlling the triode control relay.，The relay outputs a switch quantity.，Controllable voltage DC0~250VDC motor 。