Industrial RS485 4-ch High Current 30A Relay with RS485

Description

Industrial Modbus RTU 4-ch Relay Module with RS485 Interface, 30A High Current, Onboard LED Indicators, Multi Isolation Protection Circuits, Industrial Grade Rail-Mount Case

 Industrial Modbus RTU 4-ch Relay Module, front view

Features:

This is an industrial 4-ch relay module controlled via RS485 bus, utilising Modbus RTU protocol. It features embedded protection circuits such as power isolation, ADI magnetic isolation, resettable fuse, and TVS diode, etc. It also comes with an ABS enclosure. The Modbus RTU Relay 4CH is very easy to use. Due to its fast communication, stability, reliability, and safety, it is an ideal choice for industrial control equipmentmagnetic 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, by passing arguments to the command, it is possible to turn on the relay for a while and then close it automatically
  • Onboard voltage regulator, supports 7V~36V wide voltage 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
  • Adopts dedicated relay driver chip, with built-in flyback diode protection, for stronger and more stable driving ability
  • Reverse-proof circuit, prevent the circuit from being damaged accidentally by incorrect connection
  • High quality relay, contact rating: ≤30A 250V AC or ≤30A 28V DC
  • Rail-mounted ABS plastic enclosure, easy to install, safe to use
  • 3 LEDs for indicating the MCU status and signal transceiving status

Specifications

Power supply 7~36V
Communication interface RS485
Baudrate 4800, 9600, 19200, 38400, 57600, 115200, 128000, 256000
Default communication format 9600, N, 8, 1
Relay channels 4
Contact form 1NO 1NC
contact rating ≤30A 250V AC or ≤30A 28V DC
Communication protocol Standard Modbus RTU protocol
RS485 address 1~255
LED indicators STA: MCU indicator, keeps flashing when the MCU is normally working
TXD: TX indicator, lights up when sending data
RXD: RX indicator, lights up when receiving data

Interfaces & Indicators

With Multiple LED Indicators, Easy To Monitor The Operating Status

Industrial Modbus RTU 4-ch Relay Module, onboard multiple LED indicators


High Current Screw Terminals

30A high current relay, Onboard high quality screw terminals with covers, more convenient for high current wiring

Industrial Modbus RTU 4-ch Relay Module, onboard high quality screw terminal

Hardware Analysis

Multiple protections for safer and more reliable use

Industrial Modbus RTU 4-ch Relay Module, onboard components


Enclosure Design

Rail-mounted ABS plastic enclosure, easy to install, safe to use

Industrial Modbus RTU 4-ch Relay Module, with ABS plastic enclosure

RS485 Communication

Configurable device address (1~255), multi devices can be cascaded on RS485 bus

In case of many devices are cascaded, or communication distance is quite long, it is necessary to use RS485 repeaters

Industrial Modbus RTU 4-ch Relay Module, RS485 communication connection

for reference only, the USB TO RS232/485/TTL converter is Not included

Relay connection

Contact rating of the onboard relay up to 30A 250V AC or 30A 28V DC

Industrial Modbus RTU 4-ch Relay Module, connection examples with load

Applications

Industrial Modbus RTU 4-ch Relay Module, applications

Product show

Industrial Modbus RTU 4-ch Relay Module, product show

Outline dimensions

Industrial Modbus RTU 4-ch Relay Module, outline dimensions

Industrial RS485 4-ch High Current 30A Relay with RS485

Product form
Free pickup in our shop(s)

SKU: Modbus RTU Relay 4CH 30461

$109.00 $89.00 Excl. GST

$89.00
Product available in stock.

    • We ship from our stock in AU (Perth), pickup by prior booking
    • We Offer Quantity Discounts for Large Orders 10+ qty (Request Quote)
    • We accept Purchase Orders & Net 30-day Payment for Eligible Accounts

    Description

    Industrial Modbus RTU 4-ch Relay Module with RS485 Interface, 30A High Current, Onboard LED Indicators, Multi Isolation Protection Circuits, Industrial Grade Rail-Mount Case

     Industrial Modbus RTU 4-ch Relay Module, front view

    Features:

    This is an industrial 4-ch relay module controlled via RS485 bus, utilising Modbus RTU protocol. It features embedded protection circuits such as power isolation, ADI magnetic isolation, resettable fuse, and TVS diode, etc. It also comes with an ABS enclosure. The Modbus RTU Relay 4CH is very easy to use. Due to its fast communication, stability, reliability, and safety, it is an ideal choice for industrial control equipmentmagnetic 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, by passing arguments to the command, it is possible to turn on the relay for a while and then close it automatically
    • Onboard voltage regulator, supports 7V~36V wide voltage 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
    • Adopts dedicated relay driver chip, with built-in flyback diode protection, for stronger and more stable driving ability
    • Reverse-proof circuit, prevent the circuit from being damaged accidentally by incorrect connection
    • High quality relay, contact rating: ≤30A 250V AC or ≤30A 28V DC
    • Rail-mounted ABS plastic enclosure, easy to install, safe to use
    • 3 LEDs for indicating the MCU status and signal transceiving status

    Specifications

    Power supply 7~36V
    Communication interface RS485
    Baudrate 4800, 9600, 19200, 38400, 57600, 115200, 128000, 256000
    Default communication format 9600, N, 8, 1
    Relay channels 4
    Contact form 1NO 1NC
    contact rating ≤30A 250V AC or ≤30A 28V DC
    Communication protocol Standard Modbus RTU protocol
    RS485 address 1~255
    LED indicators STA: MCU indicator, keeps flashing when the MCU is normally working
    TXD: TX indicator, lights up when sending data
    RXD: RX indicator, lights up when receiving data

    Interfaces & Indicators

    With Multiple LED Indicators, Easy To Monitor The Operating Status

    Industrial Modbus RTU 4-ch Relay Module, onboard multiple LED indicators


    High Current Screw Terminals

    30A high current relay, Onboard high quality screw terminals with covers, more convenient for high current wiring

    Industrial Modbus RTU 4-ch Relay Module, onboard high quality screw terminal

    Hardware Analysis

    Multiple protections for safer and more reliable use

    Industrial Modbus RTU 4-ch Relay Module, onboard components


    Enclosure Design

    Rail-mounted ABS plastic enclosure, easy to install, safe to use

    Industrial Modbus RTU 4-ch Relay Module, with ABS plastic enclosure

    RS485 Communication

    Configurable device address (1~255), multi devices can be cascaded on RS485 bus

    In case of many devices are cascaded, or communication distance is quite long, it is necessary to use RS485 repeaters

    Industrial Modbus RTU 4-ch Relay Module, RS485 communication connection

    for reference only, the USB TO RS232/485/TTL converter is Not included

    Relay connection

    Contact rating of the onboard relay up to 30A 250V AC or 30A 28V DC

    Industrial Modbus RTU 4-ch Relay Module, connection examples with load

    Applications

    Industrial Modbus RTU 4-ch Relay Module, applications

    Product show

    Industrial Modbus RTU 4-ch Relay Module, product show

    Outline dimensions

    Industrial Modbus RTU 4-ch Relay Module, outline dimensions

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