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Ko te takahuri hiko M4 he mea whakarewa, he takahuri hiko AC 50/60Hz te rahi, he ngaohiko whakamahana kua whakatauria 690 V (M4-125 500V), he ngaohiko whakahaere kua whakatauria AC 690V, he iti iho rānei, he iahiko whakahaere kua whakatauria 12.5-1600A, hei tohatoha i te kaha o te hiko me te takahuri hiko koretake i roto i te āhua noa. Kei ngā takahuri hiko te mahi tiaki i te taumaha me te takahuri poto me te ngaohiko iti. Ka tutuki ngā takahuri hiko i te paerewa IEC60947-2. He takahuri takirua ngā takahuri hiko (i roto i te m=250A, neke atu rānei), kua wehea te takahuri whakahaere o ngā taputapu ki te takahuri matua, ā, kāore e hiahiatia kia whakatuwherahia te taupoki o te takahuri hiko i te wā e tāuta ana i ngā taputapu.