How to determine the type of RCD electronic or electromechanical?

Andrew asks:
There is an RCD legrand 40A I 30mA series 089 94 - what type of protection does it have: electronic or electromechanical? I can’t figure out how to determine this.
The answer to the question:
1. Connect the battery to one of the poles. The RCD must be checked - if it works and turns off, then it is electromechanical.
2. When the flag is cocked, hold it with a permanent magnet near one of the sides - if it works and turns off, then it is electromechanical.
3. According to the scheme on the front panel.

How to distinguish electromechanical RCD from electronic

Electronic without full power (phase and zero) will not work.

And yes, 089 94 is a catalog number, not a series. He has a series, as I understand it, DX3 - and they are electromechanical, if nothing has changed in the design.

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