NF4000A-BY Series 3 Phase & 4 lines 250VAC 4 Line.
Soshin
NF4050A-BY - 4 Lines Type Root 3 times current
NF4000A-BY Series 3 Phase & 4 lines 250VAC 4 Lines Type Root 3 times current on neutral line is available. UL1283 (file No.E102708) Application Inv.