P74x  Appendix A – Wiring Diagrams 
P74x/EN M/Na7  A1 
Model  External Connection Diagram Title  Drawing-Sheet  Issue 
COMMS OPTIONS MICOM Px40 PLATFORM 
BUSBAR PROTECTION CENTRAL UNIT P741 (80TE) 
P742 
BUSBAR PROTECTION PERIPHERAL UNIT P742 (40TE) 
BUSBAR PROTECTION PERIPHERAL UNIT P742 (40TE) 
P743 
BUSBAR PROTECTION PERIPHERAL UNIT P743 (60TE) 
BUSBAR PROTECTION P743 PERIPHERAL UNIT (60TE) 
BUSBAR PROTECTION PERIPHERAL UNIT P743 (60TE) 
BUSBAR PROTECTION PERIPHERAL UNIT P743 (60TE) 
BUSBAR PROTECTION PERIPHERAL UNIT P743 (60TE) 
BUSBAR PROTECTION PERIPHERAL UNIT P743 (60TE) WITH NCIT 
BUSBAR PROTECTION PERIPHERAL UNIT P743 (60TE) WITH NCIT 
BUSBAR PROTECTION PERIPHERAL UNIT P743 (60TE) WITH NCIT 
BUSBAR PROTECTION PERIPHERAL UNIT P743 (60TE) WITH NCIT 
BUSBAR PROTECTION PERIPHERAL UNIT P743 (60TE) WITH NCIT 
* When selecting the applicable wiring diagram(s), refer to appropriate model’s Cortec.