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Price: €1,250.00


Price: €299.00
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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.

UDP LAN Four Channels Relay Ethernet IP Controller with Clips for DIN Mount Rail

Ethernet UDP controlled relay board.
  • Code: SS_UDP4REL_DIN
  • Manufacturer:
  • In stock: 1044

Price: €56.00

KMTronic LTD


- Each relay has an LED to indicate when it is operated.
- Relay outputs can be used to turn ON/OFF lights, motors and other devices.
Relays have Normally Open (NO) and
Normally Closed (NC) Contacts each capable of switching max:
- 12VDC/15A
- 24VDC/15A
- 125VAC/15A
- 250VAC/10A

9 to 24V DC 
Standby current at 12V - 80mA     
Maximum current drawn by digital circuitry at 9V - 270mA
Maximum current drawen by digital circuitry at 12V - 200mA
Maximum current drawen by digital circuitry at 24V - 100mA


User Manual:
Relay Controller Model UD4CR.pdf

IP add ress: 99
Subnet Mask:
Default Gateway:
UDP Port: 12345

UDP Commands:

FF0000 - Status Read command

FF0100 - Relay 1 OFF command
FF0101 - Relay 1 ON command

FF0200 - Relay 2 OFF command
FF0201 - Relay 2 ON command

FF0300 - Relay 3 OFF command
FF0301 - Relay 3 ON command

FF0400 - Relay 4 OFF command
FF0401 - Relay 4 ON command


UDP Test Software example including source code (C#):

KMTronic UDP Test
KMTronic UDP Test Software Source


More Software examples (Windows, Linux, AIX, BSD, HP-UX, Solaris e.a.):






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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