Split phase switch with spring return START to 0
https://www.teconex.eu/shop/m20zhp1g2-split-phase-switch-with-spring-return-start-to-0-48372
https://www.teconex.eu/web/image/product.template/48372/image_1920?unique=9d7a924
Interne referentie: M20ZHP1G2
