This product has a variety of options that are sent based on the options you purchased.
1 Channel Low level trigger：
The module uses genuine quality relay, normally open interfaces
Using SMD optocoupler isolation, driving ability, stable performance
The module can be high or low by a jumper setting trigger
Fault-tolerant design, even if the control line is broken, the relay will not operate
The power indicator (green), the relay status indicator (red)
The interface design of human nature, all interfaces are available through a direct connection terminal leads, very convenient
Maximum load: AC 250V/10A, DC 30V/10A Trigger current: 5mA Working voltage: 5V Module size: 50 x 26 x 18.5mm (L x W x H) Four mounting bolts holes, diameter 3.1mm DC+: positive power supply (VCC) DC-: negative power supply (GND) IN: can be high or low level control relay NO: normally open relay interface COM: Common Interface Relays NC: normally closed relay interface It is low level trigger when jumper connect to LOW pin It is high level trigger when jumper connect to HIGH pin
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