USB-RLY02-SN USB-Relais
Devantech
The USB-RLY02-SN provides two volt free contact relay outputs with a current rating of up to 16Amp each. Between the normally open and common contacts we have also integrated snubbers for inductive loads. Power for driving of the relays is conveniently sourced from the USB supply. The relays are SPCO (Single Pole Change Over) types. The normally open, normally closed and common pins are all available on the screw terminals.
Overview
| USB-RLY02 | |
|---|---|
| Relays | 2 |
| Power | Powered from standard USB bus |
| Control interface | USB with a mini B connector |
| Relay current | Up to 16Amp @24vdc or 250vac |
| Connections | Screw Terminals for N/O N/C and Common contacts. |
Snubbers
Integrated snubbers have be added to the module between the common and normally open poles. When inductive loads are to be used the snubbers suppress the switching spikes and relay arc associated with such loads. We have a simple guide here.
LED indication
Red LEDÂ’s are mounted immediately next to each relay to indicate whether it is in a powered state (LED on).
Relay power rating
| load type | Typical applications | Rating |
| AC1 | Non inductive or slightly inductive loads |
16A @ 250V AC 3A @ 120V AC |
| AC15 | Control of electromagnetic load (>72VA) |
1.5A @ 240V AC |
| AC3 | Control of motor | 750W |
| DC1 | Non inductive or slightly inductive loads |
16A @ 24V DC |
| DC13 | Control of electromagnetic loads |
0.22A @ 120V DC 0.1A @ 250V DC |
Download
A full datasheet for the relays used is here.
Board Dimensions
Test Program
To get the USB-RLY02-SN up and running in the minimum amount of time the manufacturer has put together a RelayTestprogram to demonstrate the functionality of the module.
Examples
Linux
Linux GCC - A command line tool that will set the relay states according to input from the user
Linux with Mono and Xbuild (C#) - Simple example of switching the relays
Mac
Xcode - Simple example of switching the relays
Microsoft Windows
Visual C# Express - Simple example of switching the relays
Visual Basic Express - Simple example of switching the relays
Technical Specifications Manufacturer
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Product information for: USB-RLY02-SN USB-Relay
Publishing date (date of last technical specification): 2021-03-31
Shipping weight: 160 g
Manufacturer: Devantech
Brand: ROBOT ELECTRONICS
Article number: DEV-USB-RLY02-SN
Manufacturer's part number: USB-RLY02-SN
The article USB-RLY02-SN USB-Relay is listed in the following categories:
Modules > Relay > USB
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Article no.: DEV-USB-RS485
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Article no.: DEV-USB-RLY16
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Article no.: DEV-USB-RLY16L
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Article no.: DEV-USB-RLY82
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Article no.: DEV-USB-RLY08-B
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Availability
Not in stock. We will obtain the article for you.
Estimated manufacturer's time of delivery: 30 days
updated: 17/11/2023
Information on currency
EUR 43.98 = GBP 37.61
EUR 36.96 = GBP 31.60
(€1=GBP0.85505)
EUR 43.98 = USD 50.35
EUR 36.96 = USD 42.31
(€1=USD1.1448)
EUR 43.98 = CAD 63.40
EUR 36.96 = CAD 53.28
(€1=CAD1.4416)
EUR 43.98 = AUD 69.00
EUR 36.96 = AUD 57.99
(€1=AUD1.5690)
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About ROBOT ELECTRONICS
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.
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