Recommended contactor for Themo T700DIN

Created by Themo Support, Modified on Tue, 7 Mar, 2023 at 6:00 PM by Themo Support

• Relays, contactors, fans, motors and other inductive loads may produce voltage spikes when turning off the load that are strong enough to harm Themo and cause unreliability. An RC Snubber is required to be installed over the load to reduce these spikes. The RC snubber is installed between the phase and neutral of the load (L Load and N Load on Themo, A1 and A2 on the contactor). 

A suitable RC Snubber can be found here: 

So called ”silent” contactors are less likely to cause problems, as they usually have similar electronics embedded. However, there might be exceptions.

Hager ESC/ETC425S; ESC/ETC225S and ABB ESB16-20N contactors have been tested to work without an RC snubber.

See also: 
General Instructions for Themo Price Switch

Was this article helpful?

That’s Great!

Thank you for your feedback

Sorry! We couldn't be helpful

Thank you for your feedback

Let us know how can we improve this article!

Select at least one of the reasons
CAPTCHA verification is required.

Feedback sent

We appreciate your effort and will try to fix the article