Agasanduku ko gukwirakwiza amashanyarazi XL-21 nigikoresho cyo mu nzu, kibereye amashanyarazi n’inganda n’inganda n’ubucukuzi bw’amabuye y'agaciro, AC inshuro 50Hz, AC voltage 380V, ibyiciro bitatu-bitatu, ibyuma bitatu-bine. Ikoreshwa mumashanyarazi no kumurika gukwirakwiza no kugenzura, kandi irashobora no gukoreshwa mubindi bihe byujuje imikorere yimitwaro yisanduku yo gukwirakwiza amashanyarazi, nka: ibyumba bya mudasobwa yo murugo, inganda, amashanyarazi yo mumijyi, inganda zubaka.