ʻO ka pahu hoʻolaha mana XL-21 he mea i loko, kūpono no nā mea kanu kīwila a me nā ʻoihana ʻenehana a me nā ʻoihana mining, AC frequency 50Hz, AC voltage 380V, ʻekolu manawa ʻekolu-uea, ʻekolu-phase ʻehā-wire mana ʻōnaehana. Hoʻohana ʻia ia no ka hāʻawi ʻana i ka mana a me ke kukui a me ka mana, a hiki ke hoʻohana ʻia no nā manawa ʻē aʻe e hoʻokō i ka hana hoʻokō o ka pahu hoʻoili mana, e like me: nā lumi kamepiula i loko, nā hale hana, ka uila kūlanakauhale, ka ʻoihana kūkulu.