5. Wiring
There are two connection modes: direct connection and indirect connection through CT.
(1) For Model 5(63)A, SPM93 should be connected directly. Direct connection
drawing, in 3-phase 4-wire system.
Figure 5-1 Direct connection type
(2) For model 5(6)A, SPM93 should be connect though external CT. Indirect
connection drawing through CT, in 3-phase 4-wire system (Suggest to connect
all 3 phase).
Figure 5-2 Current transformer connection type