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7-24V Modbus RTU 4, Channels Relay Module, RS485/TTL Anti-Reverse, Connection

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977.50 (Including tax)

  1. On-board Chip: MAX485
  2. Communication protocol:  Modbus RTU protocol
  3. Communication interface: Support RS485 / TTL UART interface
  4. Operating Voltage: 5VDC
  5. No. of Channel: 4


Discount per Bulk Quantity

5 - 105%928.63 (Including tax)
11 - 2010%879.75 (Including tax)
21 - 4015%830.88 (Including tax)
41 - 10020%782.00 (Including tax)
  • Estimated delivery time 2-4 days
  • (Subject to stock Availability)
SKU: rz24320485

Product details

LC 4 channel Modbus relay module equipped with mature and stable 8-bit MCU and RS485 level communication chip adopt standard MODBUS RTU format RS485 communication protocol, It can realize 4-way input signal detection and 2-way relay output, can be used for digital detection or power control occasions.


  1. On-board mature and stable 8bit MCU and MAX485 level conversion chip
  2. Communication protocol: support standard Modbus RTU protocol
  3. Communication interface: Support RS485 / TTL UART interface
  4. Communication baud rate: 4800/9600/19200, default 9600bps, support power saving
  5. Photocoupler input signal range: DC3.3-30V (This input cannot be used for relay control)
  6. Output signal: relay switch signal, support manual, flash-off, flash-off mode, the delay base of flash-off / flash-off is 0.1S, the maximum settable flash-off / flash-off time is 0xFFFF * 0.1S = 65535 * 0.1 S = 6553.5S
  7. Device address: range 1-255, default 255, support power-down save
  8. Onboard one 5V, 10A / 250V AC 10A / 30V DC relay,
  9. Continuously attract 100,000 times, with diode leakage protection, short response time
  10. Onboard relay switch indicator
  11. Supply voltage: DC7-24V, with input anti-reverse protection
  12. Board Dimension(L x W x H) mm: 90 x 92 x 20
  13. Weight: 92gm

Package includes:

1  x  7-24V Modbus RTU 4 Channel Relay Module RS485

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