4-Channel Relay Board for Car Motor Control, 12V RS232 Remote Switch
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R319
The Story
This 4-channel relay module allows you to control up to four devices via RS232 serial commands. Operating at 12V DC, it supports multiple control modes including read, open, close, self-locking, click, and interlock, making it ideal for automotive motor control and industrial automation applications.
add_circle The Upside
- check Versatile control modes for various applications
- check Low power consumption in standby
- check Easy integration with RS232 serial communication
remove_circle The Downside
- close Requires external 12V power supply
- close No optocoupler isolation, may be susceptible to noise
- close Limited to 4 channels, not expandable
Specifications & features
Key features
- check_circle 4 independent relay channels
- check_circle RS232 DB9 female interface for serial control
- check_circle Supports read, open, close, self-locking, click, and interlock commands
- check_circle Low standby current of 18mA
- check_circle Wide input voltage range 9-13V DC
Specifications
1 Channel Active Current
50mA
2 Channels Active Current
81mA
3 Channels Active Current
110mA
4 Channels Active Current
141mA
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