Ammeter switch 1-pole 3 current transformer circuits
https://www.teconex.eu/shop/m20em31g2-ammeter-switch-1-pole-3-current-transformer-circuits-48124
https://www.teconex.eu/web/image/product.template/48124/image_1920?unique=ba62e87
Interne referentie: M20EM31G2
