Waveshare Modbus RTU 32-Ch Relay Module, RS485 Interface, With Multiple Isolation Protection Circuits

This product is an industrial 32-ch relay module controlled via RS485 bus, adopts Modbus RTU protocol, built-in protection circuits such as power supply isolation, magnetical isolation, resettable fuse, and TVS diode, etc. It also comes with an ABS case.

The Modbus RTU 32-Ch Relay is very easy to use. Due to its fast communication, stability, reliability, and safety, it is an ideal choice for industrial control equipment and/or applications with high communication requirements.

Applications:

1. Industrial Control
2. Smart Home
3. Smart Agriculture
4. Breeding and Farming

Features:

1. Configurable device address (1~255), multi-devices can be cascaded on RS485 bus
2. Features flash-on, and flash-off functions, it is possible to turn on the relay for a while and then close it automatically via the command
3. The onboard voltage regulator chip supports a 7~36V wide voltage power supply
4. Onboard unibody power supply isolation, provides stable isolated voltage and needs no extra power supply for the isolated terminal
5. Onboard unibody magnetical isolation, allows signal isolation, high reliability, strong anti-interference, low power consumption
6. 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, lightning proof & anti-electrostatic
7. Onboard Optocoupler isolation, prevents the relay from being interfered with by high-voltage circuit
8. Onboard dedicated relay driver chip, with built-in freewheeling diode protection, the driving ability is stronger and more stable
9. Reverse-proof circuit prevents the circuit from being damaged accidentally by an incorrect connection
10. High-quality relay, contact rating: ≤10A 250VAC/30VDC
11. Rail-mounted ABS case, easy to install, safe to use
12. 3 LEDs for indicating the MCU status and signal transceiving status