Ammeter switch 1-pole 3 current transformer circuits
https://www.teconex.eu/shop/n20pm31g2-ammeter-switch-1-pole-3-current-transformer-circuits-51830
https://www.teconex.eu/web/image/product.template/51830/image_1920?unique=ba62e87
Interne referentie: N20PM31G2
