1 channel relay module, 5V/12v/24v optocoupler isolation module,low voltage control high voltage
The module uses genuine high-quality relays, the maximum load of the normally open interface: AC 250V / 10A, straight 30V / 10A;
SMD optocoupler isolation, strong driving ability and stable performance; trigger current 5mA;
Fault-tolerant design, even if the control line is broken, the relay will not operate;
Power indicator (green), relay status indicator (red)
User-friendly interface design, all interfaces can be directly led out through terminal blocks, which is very convenient
Two module interface:
1. DC +: Connect to the positive pole of the power supply (3.3V)
2. DC-: connect to the negative pole of the power supply
3. IN: Low-level control relay pull-in
1. NO: Normally open interface of the relay. The relay is suspended before pull-in, shorted to COM after pull-in.
2. COM: Relay common interface
3. NC: relay normally closed interface, the relay is short-circuited to COM before pull-in, and left floating after pull-in
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