Industrial Modbus RTU 4-ch Relay Module with RS485 Interface

This is an industrial 4-ch relay module controlled via RS485 bus using Modbus RTU protocol, with multi isolation protection circuits and an ABS enclosure.

• The description claims multi isolation protection circuits.
• The description claims onboard voltage regulator supporting 7V~36V wide voltage supply.
• The description claims onboard unibody power supply isolation.
• The description claims onboard unibody ADI magnetic isolation.