Waveshare Modbus RTU 16-Ch Relay Module, RS485 Interface, with Multiple Isolation Protection Circuits, Industrial-Grade, Rail-Mount Case

Waveshare Modbus RTU 16-Ch Relay Module, RS485 Interface, with Multiple Isolation Protection Circuits, Industrial-Grade, Rail-Mount Case

Configurable device address (1~255), multi devices can be cascaded on RS485 bus。 Features flash-on, flash-off function, by passing argument to the command, it is possible to turn on the relay for a while and then close it automatically Onboard unibody power supply isolation, provides stable isolated voltage, needs no extra power supply for the isolated terminal.Allows signal isolation, high reliability, strong anti-interference, low power consumption Onboard resettable fuse and TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, provides over-current/over-voltage proof, lightningproof & anti-electrostatic。 Onboard Optocoupler isolation, prevent the relay from being interfered by high-voltage circuit Onboard dedicated relay driver chip, with built-in freewheeling diode protection, the driving ability is stronger and more stable. Reverse-proof circuit, prevent the circuit from being damaged accidentally by incorrect connection High quality relay, contact rating: ≤10A 250VAC/30VDC。 Rail-mounted ABS case, easy to install, safe to use. 3 LEDs for indicating the MCU status and signal transceiving status