4-Channel Modbus RTU Relay Module with RS-485 Interface _ARD_SHIELD_UNO ISO/IEC 14443 Type A/Type B

ISO/IEC 14443 Type A/Type B protocol Encoder Resolution: 16 positions

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4-Channel Modbus RTU Relay Module with RS-485 Interface _ARD_SHIELD_UNO ISO/IEC 14443 Type A/Type BThis 4 channel relay module operates via RS 485 using the Modbus RTU protocol. It features high current relays rated up to 30A at 250V AC or 28V DC and is built for applications requiring reliable switching and communication. The ABS DIN rail mount case makes it easy to install in industrial environments. The module includes multiple protection circuits such as power isolation, ADI magnetic signal isolation, a resettable fuse, and a TVS diode. It also