R7-125 usoro ụwa ntapu sekit sekit bụ tumadi eji maka AC 50 Hz, gosiri voltaji.

230/400V, gosiri ugbu a 6A ka 63A, na-enwe leakage electric ujo, ibufe, obere sekit nchebe ọrụ, wdg nwekwara ike tinye overvoltage nchedo ọrụ dị ka ndị ahịa chọrọ; A na-ejikarị eme ihe na ụlọ ọkụ na nchebe nke usoro nkesa ike. Enwere ike ịbawanye n'okpuru voltaji, karịa ọrụ nchekwa voltaji dịka ihe onye ọrụ chọrọ; Ngwaahịa a bụ ọkọlọtọ IEC61009-1 na GB16917.7.