{"title":"Modbus RTU 32-Ch Relay Module, RS485 Interface, With Multiple Isolation Protection Circuits","handle":"modbus-rtu-32-ch-relay-module-rs485-interface-with-multiple-isolation-protection-circuits","url":"/products/modbus-rtu-32-ch-relay-module-rs485-interface-with-multiple-isolation-protection-circuits","description":"   Modbus RTU 32-Ch Relay Module, RS485 Interface, With Multiple Isolation Protection Circuits, Industrial-Grade, Rail-Mount Case               RS485 32-ch Relay Module       Modbus RTU Protocol, Multi Isolation Protection Circuits, Safe & Stable & Reliable                 Features at a glance                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, ADI 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 equipments and/or applications with high communication requirements.                    Configurable device address (1~255), multi devices can be cascaded on RS485 bus           Features flash-on, flash-off function, it is possible to turn on the relay for a while and then close it automatically via the command           Onboard voltage regulator chip, supports 7~36V wide voltage power supply           Onboard unibody power supply isolation, provides stable isolated voltage, needs no extra power supply for the isolated terminal           Onboard unibody ADI magnetical isolation, 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                                 Specifications                      Onboard multiple isolation protection circuit       Multiple protections, more safe and reliable                 Rail-mount case design       Rail-mounted ABS protective enclosure, easy to install, safe to use                 RS485 Communication       Configurable device address (1~255), multi devices can be cascaded on RS485 bus         In case of many devices are cascaded, or the communication distance is quite long,          it is necessary to use RS485 repeaters       * for reference only, the USB to RS485 is NOT included.                 Relay connection       Contact rating of the onboard relay up to 10A 250VAC/30VDC         Directly controlling 220VAC home appliances, or devices below 30VDC                 Applications                 Product show                 Outline dimensions                 Resources & Services                Wiki: www.waveshare.com/wiki/Modbus_RTU_Relay_32CH                        Selection Guide                      The power supply adapter is NOT included by default, it is recommended to purchase 12V power supply if you need it.           Modbus RTU Relay 32CH x1           1        ","vendor":"Waveshare","product_type":"","in_stock":true,"options":[],"variants":[{"id":1445,"title":"Default Title","sku":"WS-25140","price":99.18,"on_sale":false,"in_stock":true,"available_quantity":11,"option1":"Default Title"}]}