Split phase switch with spring return START to 1
https://www.teconex.eu/shop/m20zhp2g2-split-phase-switch-with-spring-return-start-to-1-48374
https://www.teconex.eu/web/image/product.template/48374/image_1920?unique=9d7a924
Interne referentie: M20ZHP2G2
