It is a neutral 10A 250V ~ push button with fast terminal connection system, white in color, with tilting operation, Simon 27 Play.
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Rocker half element for switches graphite Simon 27 Play
Rocker for switches graphite Simon 27 Play
Why do some European countries not have a ground wire, while the US does? - Quora
Edwards 590 Series Class 2 Signaling Transformers are easy to install, low voltage power sources for residential, commercial, and industrial uses. Mounts in a standard 1/2 (13mm) knockout or surface mounts using the provided foot mounts. These transformers are suitable for mounting in both plastic and metal back boxes. May also be used with the 593 transformer plate for enclosed mounting in a standard two gang outlet box.
Edwards Signaling 599 Transformer