HWK3 fa'atonuga fa'asologa ma le puipuiga o mea fa'aoga e masani ona fa'aogaina i le matagaluega o le AC 50HZ (60HZ), fa'atulagaina le voluma galue i le 690V. Fa'atatauina galue i le taimi nei 1A i le 125A, afi afi 0.12KW i le 55KW, fa'aaoga masani mo le fa'atonuina o le ta'amilosaga, ma le puipuiga o mea sese o uta laina. E faʻaaogaina se fausaga tuʻufaʻatasia faʻapipiʻi, lea e tuʻufaʻatasia ai galuega autu o vaʻavaʻavaʻa, faʻafesoʻotaʻi, overload relays, starters, isolators ma isi oloa. E tasi le oloa e mafai ona suia le uluai tuufaatasiga tele-vaega.