5V 30A 1-Channel Relay Module

The Single 5V 30A 1-Channel Relay Module board with LED pointers can be control by microcontrollers such as Arduino, AVR, PIC, ARM any other microcontroller operating at 5V. The user can choose the relay control level, can be a high level off, also can be low level and off. The Single-channel 5V 30A Relay Module contains a limited flow resistance, can directly use the power supply is negative control, you can also use the MCU I/O control.


  1. 30A relay module, normally open interface maximum load: AC 250V/30A, DV 30V/30A;
  2. Optical coupling isolation, driving ability is strong, stable performance;
  3. Trigger current is 5mA;
  4. The module can be set high level or low-level trigger by the jumper;
  5. Power pointer light (green), relay status pointer light (red);
  6. Module Size:50mm*33mm*24mm;
  7. Operating Voltage:5V
  8. The still current is 5mA
  9. The working current is  190mA
  10. Trigger current: 2-4mA

Module Interface Specifications

  1. DC +: DC power supply positive pole
  2. DC- : DC power supply negative pole
  3. IN: signal triggering pin
  4. JD+ : relay control voltage positive
  5. JD-: relay control voltage negative
  6. DC+ and JD+ shorted by jumper cap, DC- and JD- shorted with jumper cap, it is the same voltage between trigger terminal and relay control terminal
  7. High and low-level trigger mode selection.Jumper and L pin connection, IN pin is low level trigger upper and H pin connection, IN pin is high-level trigger
  8. Usually closed pin (NC) : relay normally closed pin
  9. Common pin (COM) : relay common pin
  10. Normally opened pin (NO) : relay normally opened pin

Package Includes

  1. 1 x 5V 30A 1-Channel Relay Module SLA-12VDC-SL-C


Additional information

Weight 0.1 kg


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