Iswitshi ephambili ye-R7VI yenzelwe ukwamkela uqhagamshelo lwentambo/ukuphuma kwentambo. Ingasetyenziswa njengeswitshi yokwahlula. Iswitshi engaxhunyiweyo iyakwazi ukutshintsha imithwalo yokuthintela kunye neyokubangela uqhushululu.
Le mveliso ihambelana ne-IEC60947-3.
| I-voltage elinganisiweyo (V) | 250/41550/60Hz |
| Umlinganiselo wangoku (A) | 32,63,100 |
| Iipali | 1,2,3,4 |
| Udidi lokusetyenziswa | I-AC-22A |
| I-voltage yokugquma elinganisiweyo | 500V |
| Ubomi bombane | 1500 |
| Ubomi boomatshini | 8500 |