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To all customers and suppliers,
With reference to the current international health situation we confirm the normal activity of our company. There will be no delay in shipments and the workflow will remain as it has been.
We hope that you all are in good health and that the situation will be resolved as soon as possible.

RS485 Relay Controller - Four Channel with Clips for DIN Mount Rail

The general purpose of RS-485 Four Channel Relay Controller. Control devices using your PC.
  • Code: SS_RS485_4REL_DIN
  • Manufacturer:
  • In stock: 989

Price: €42.00

The board is fully compatible with the 8 relay version.
This version has an option to change the BOARD NUMBER  (from 01 to 15) manually through a DIP Switch placed near RS485 connector.


Required power:
Allows power supply voltage from 9 to 24V DC.


Relays have Normally Open (NO) and Normally Closed (NC) Contacts each capable of switching max:
- 12VDC/15A
- 24VDC/15A
- 125VAC/15A
- 250VAC/10A


User Manual:
RS485 Relay Controller - Four Channel.pdf

Communication Parameters:
8 Data, 1 Stop, No Parity
Baud rate : 9600

Relay commands:
OFF command : FF xx 00 (HEX) or 255 xx 0 (DEC)
ON command : FF xx 01 (HEX) or 255 xx 1 (DEC)


Additonal information

  Payment accepted:
Credit Card payments, PayPal

Bank Wire Transfer

We ship WORLDWIDE through TNT.

  Import duties, taxes and charges are not included in the item price or shipping charges. These charges
are the buyer's responsibility. Please check with your country's customs office to determine what these additional
costs before you purchase.

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