RELAYHI1 Yocto PowerRelay


USB interface driving a tiny electromagnetic relay capable of switching directly mains powered appliances, up to 1250W.

SKU: RELAYHI1 Categories: ,


The RELAYHI1 Yocto PowerRelay is a Swiss-made USB relay, containing a USB-driven SPDT relay switch. The relay input can be driven by software to one of the two outputs. To make it easier to test your project, two LEDs positioned on each side of the connector show the output currently active.

This device only includes a single relay, but it can drive higher loads than the Yocto Relay device. The relay and the connector can stand a current of 5A. Be aware that using a relay to drive inductive loads (motors, transformers) may lead to accelerated aging of the relay. Please refer to the documentation for hints on reducing this type of problem.

This product is about to be replaced by the Yocto PowerRelay V2, which is almost identical but features reinforced insulation and a higher withholding voltage. Caution, A and B outputs are swapped on the terminal block of the Yocto PowerRelay V2!

This device can be connected directly to an Ethernet network using a YoctoHub Ethernet, to a WiFi network using a YoctoHub Wireless-g, it can even be connected to a GSM network thanks to the YoctoHub GSM.

USB cables and enclosure to be ordered separately.

Specifications of RELAYHI1 Yocto PowerRelay

Manufacturer Product Number – RELAYHI1
Product name – Yocto-PowerRelay
Width – 20mm
Length – 45mm
Weight – 12g
USB connector – micro-B
Channels – 1
Max switching current – 5A
Max switching power – 1250W
Max withholding voltage – 400V DC
Supported Operating Systems – Windows, Linux (Intel + ARM), Mac OS X, Android
Drivers – no driver needed
API / SDK / Libraries (USB+TCP) – C++, Objective-C, C#, VB .NET, Delphi, Python, Java/Android
API / SDK / Libraries (TCP only) – Javascript, Node.js, PHP, Java
RoHS – yes
Suggested enclosure – YoctoBox-Short-Thick-Black
Made in – Switzerland


Yocto Power Relay

Additional information

Weight 0.1 lbs
Dimensions 2.5 × 1 × 1 in


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