Electrical Connections; Important Safety Instructions; Make Frame Grounding Connections; Make Nominal 208/240 Volts Ac Input And Equipment Grounding Connections (If Equipped) - Emerson Netsur 721Npbb Quick Start Manual

NetSure ™ -48V DC Power System

Quick Start Guide, QS582127000 (Issue AC, December 10, 2013)

Electrical Connections

Important Safety Instructions

Danger! Adhere to the "Important Safety Instructions" presented at the front of this document.
Danger

Make Frame Grounding Connections

To do this...
Make Frame Grounding
Connection to Relay Rack
Make Central Office Ground
Connection

Make Nominal 208/240 Volts AC Input and Equipment Grounding Connections (if equipped)

Refer to Nominal 208/240 Volts AC Input and Equipment Grounding Connections (if equipped) in the MAKING ELECTRICAL CONNECTIONS
section of the Installation Instructions (IM582127000) for a complete procedure.
NOTE THAT THIS SYSTEM MAY BE EQUIPPED WITH AC OR DC INPUTS.
THESE PROCEDURES APPLY TO SYSTEMS WITH AC INPUTS.
SPECIFICALLY, THESE PROCEDURES APPLY TO THE FOLLOWING EQUIPMENT:
•
582127000 List 40, 41, 42
•
588705000 List 22
• 588705000 List 31
• 588705000 List 32
•
588705300 List 3
The available AC input options for this system are:
AC Input Termination Assemblies
• The system can be equipped with an AC input termination assembly which provides a separate single phase AC input
connection for each rectifier position (582127000 List 40).
•
The system can be equipped with an AC input termination assembly which provides a separate single phase AC input
connection for every two (2) rectifier positions (582127000 List 41).
• The system can be equipped with an AC input termination assembly which provides a separate three phase AC input connection
for every three (3) rectifier positions (582127000 List 42).
Direct AC Input Connections to the Module Mounting Shelves
•
The system can be equipped with module mounting shelves that contain AC input terminal blocks which provide a separate
single phase AC input connection for each rectifier position (588705000 List 31).
•
The system can be equipped with module mounting shelves that contain AC input terminal blocks which provide a separate
three phase AC input connection for every three (3) rectifier positions (588705000 List 32).
•
The system can be equipped with module mounting shelves that contain AC input line cords (one for each rectifier module
position) (588705000 List 22).
•
The system can be equipped with module mounting shelves that contain AC input cable assemblies which provide a separate
single phase AC input connection for every two (2) rectifier positions (588705300 List 3).
Spec. No: 582127000
Model No: 721
NPBB
See this in the Installation Instructions (IM582127000)
Relay Rack Grounding Connection (Frame Ground) in
the MAKING ELECTRICAL CONNECTIONS section.
Central Office Ground Connection in the MAKING
ELECTRICAL CONNECTIONS section.
[10]
Code: QS582127000
Issue AC, December 10, 2013