Kukula kwa ntchito 

R7 mndandanda modudlar isotating switch imagwiritsidwa ntchito pakuzungulira kwa AC 50Hz, yoyendera magwiridwe antchito 230V / 400V kapena ochepera, ovoteledwa pakadali pano mpaka 100A. Itha kupanga ndikuphwanya dera lokhala ndi vuto.

Zomangamanga

Nkhani ya R7 mndandanda yodziyimira payokha yokhayokha lophimba utenga mkulu kukana ndi mkulu intension mapulasitiki wapadera, amene ali ndi ubwino wa amadza amphamvu, kulemera kuwala kwambiri ndi odalirika contact.It ndi oyenera unsembe kalozera ndipo angagwiritsidwe ntchito ndi zida zina yodziyimira payokha osachiritsika.