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NetSure -48V DC Bulk Output Power System Installation and User Instructions (UM582127100)
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Rev. E
23
MAKING ELECTRICAL CONNECTIONS
Important Safety Instructions
DANGER!
Adhere to the “Important Safety Instructions” presented at the front of this document.
Wiring Considerations
All wiring and branch circuit protection should follow the current edition of the American National Standards
Institute (ANSI) approved National Fire Protection Association's (NFPA) National Electrical Code (NEC), and
applicable local codes. For operation in countries where the NEC is not recognized, follow applicable codes.
For wire size, branch circuit protection, crimp lug, and general wiring recommendations; refer to System
Application Guide SAG582127100 and Power Data Sheet PD588705000.
Lugs should be crimped per lug manufacturer’s specifications.
Relay Rack Grounding Connection (Frame Ground)
For relay rack grounding requirements, refer to the current edition of the American National Standards Institute
(ANSI) approved National Fire Protection Association's (NFPA) National Electrical Code (NEC), applicable local
codes, and your specific site requirements.
A customer's grounding network lead can be attached to the top of the relay rack. Provision is made for
installing a lead with a two-hole lug that has 1/4" bolt clearance holes on 5/8" centers. When using 1/4-inch
hardware, recommended torque is 84 in-lbs when a standard flat washer and lock washer are used. Refer to
NOTE!
REMOVE TAPE FROM HOLE LOCATIONS BEFORE INSTALLING LUG.
NOTE!
The DC return connection to this system can remain isolated from system frame and chassis
(DC-I).
NOTE!
This system is suitable for installation as part of the Common Bonding Network (CBN).
