Obsolete item

This item is not available any more. Some components might no longer be manufactured or there is an improved successor model.


ETH-RLY02 Ethernet Relay



The ETH-RLY02 provides two volt free contact relay outputs with a current rating of up to 16Amp each. The module is power from a 12vdc supply which can be regulated or unregulated. The DC input jack is 2.1mm with positive core polarity, DC supplies are required to supply at least 500mA at 12vdc. The relays are SPCO (Single Pole Change Over) types. The normally open, normally closed and common pins are all available on the screw terminals.

Operating Temperature

-40°C to +70°C

LED indication

The ETH-RLY02 provides a red LED mounted immediately next to each relay to indicate whether it is in a powered state (LED on), there is also two LED's mounted in the Ethernet connector which will flash with Ethernet traffic. Finally there is a red power LED alongside the screw terminals.

Relay power rating

If the contact load voltage and current of the relay are in the region enclosed by the solid and dotted lines in the figure below, the relay can perform stable switching operation. If the relay is used at a voltage or current exceeding this region, the life of the contacts may be significantly shortened.

 load type   Typical applications   Rating  Max DC load capacity

Relais Rating

 AC1  Non inductive or
 slightly inductive loads 
 16A @ 250V AC 
 AC15  Control of 
 electromagnetic load 
 3A @ 120V AC  
 1.5A @ 240V AC 
 AC3  Control of motor   750W
 DC1  Non inductive or
 slightly inductive loads
 16A @ 24V DC 
 DC13  Control of electromagnetic 
 0.22A @ 120V DC
 0.1A @ 250V DC


A full datasheet for the relays used on the ETH-RLY02 is here.


PP-SW4047D universal mains adapter, 12VDC 1.25A 15W max. output
PP-SW4047D universal mains adapter

Manufacturer's data

Technical Specification - link to the manufacturer


DEV-PA122521 12V universal mains adapter DEV-PA122521

DEV-PA122521 12V universal mains adapter

Newest specification: 08/2019
EUR 17.98
plus EUR 5.95 shipping costs
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EUR 15.11
plus EUR 5.00 shipping costs
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Article no.: DEV-PA122521
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Product information for: ETH-RLY02 Ethernet Relay

Publishing date (date of last technical specification): 2012-07-01
Weight: 70 g
Shipping weight: 90 g
Manufacturer: Devantech
Article number: DEV-ETH-RLY02
Manufacturer's part number: ETH-RLY02

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Obsolete item

This item is not available any more. Some components might no longer be manufactured or there is an improved successor model.



ROBOT ELECTRONICS is a brand by English manufacturer Devantech Ltd., based in Norfolk. Product range comprises sensors, in particular ultrasonic or compass, servocontrollers as well as small robot drive systems or relay modules with various interfaces. Sensors are produced in England and are of consistently high quality.