Songle 1 Channel 5V 30A Module Power Failure Relay

The Songle Single Channel 5V 30A Relay Module Power Failure Relay is a 1 channel relay module board with LED indicators. It can be controlled by microcontrollers like Arduino, AVR, PIC, ARM and any other microcontroller that runs on 5V.

The relay module uses authentic quality mechanical relay and the industry's best subminiature optical two-way isolation coupling, which gives you strong anti-interference ability and stable performance.

The user can choose the relay control level, it can be high level or it can be low level and off. The Songle single channel 5V 30A relay module power failure relay contains limited flow resistance, can directly use the power supply is negative control, you can also use the MCU I/O control.

The relay module is equipped with a power indicator light (red), 1 road relay status indicator light (blue). With this relay you can easily control electrical appliances, lighting, etc.

Fault-tolerant design, even if the control line is broken, the relay will not move.
Module interface:

DC+: DC power supply positive pole
DC-: Negative pole of DC power supply
IN: signal trigger pin
JD+: relay control voltage positive
JD-: relay control voltage negative

Functions :

Optical coupling isolation, driving ability is strong, stable performance; The trigger current is 5 mA
The module can be activated at high or low level via the jumper
Rated current of the interface is 16A
DC+ and JD+ shorted by jumper cap, DC- and JD- shorted by jumper cap, it is the same voltage between trigger terminal and relay control terminal.
Selection of high and low level trigger modes. Jumper and L pin connection, IN pin, is low level trigger. Jumper and H pin connection, IN pin, is the high level trigger.