Feature

●1 channel SRD-DC03V-SL-C equiped with high-current relay, compatible load: AC250V 10A ; DC30V 10A, each relay has normally open and normally closed contact, can be selected by jumper relay and TTL or ground.
●1 channel 3V/3.3V power relay mdoule support photocoupler isolation control, support dual power supply input ensure high anti-iinterference ability, which can be input from microcontroller IO, with diode freewheel protection.
●The relay module is triggered by high level signal, with output signal indicator, signal input port can be connected to the I0 port of the single chip microcomputer and driven by high-level signal.
●The 3v relay board works well with ARM /PIC /AVR /MCU/Raspberry/CNC machine/NodeMCU/ ESP8266 module etc.
●1 channel 3V relay module external wiring adopts the rotary crimping terminal to make the wiring more firm. It is equipped with a fixed installation hole for easy installation.


Description

This is the 3V 1 channel relay module with optocoupler isolation
1 relay output module, max load AC 250A 10A, DC 30V 10A
VCC, GND power input,with optocoupler isolation
Low level trigger,stable performace
Widely used in SCM control, PLC control, home intelligent control,industry etc

Power interface:
VCC: connected to positive pole of power supply (3.3V)
GND: connected to negative pole of power supply
IN: high level control relay pull in

Load interface:
NO: normally open interface of relay, the relay is suspended before closing, and is short circuited with com after closing
COM: relay common interface
NC: normally closed interface of relay, the relay is short circuited with com before closing and suspended after closing

Jumper Caps:
JP1 is used to connect VCC of the signal terminals and V+ of the relay.
JP2 is vned to connect GND of the signal teminals and V+ of the relay. The high-level signal that over 1.5V to IN can trigger the relay.

Package include:
12 x 1 channel 3v relay board