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Rectifier AC Input and AC Input Equipment Grounding Connections
(Nominal 100 VAC / 120 VAC / 208 VAC / 240 VAC, Single Phase)
DANGER! Adhere to the "Important Safety Instructions" starting on page 6.
Wiring Considerations
For wire size, branch circuit protection, crimp lug, and general wiring recommendations; refer to System
Application Guide SAG582137100101 / SAG582137100102 / SAG582137100103 / SAG582137100104 /
SAG582137100105 / SAG582137100106.
General
The system cabinet provides circular openings on the top rear of the cabinet for rectifier AC input and
grounding conductors. The openings accept 3/4-inch conduit fittings. It is recommended that AC input wiring
be provided to all rectifier mounting positions, including currently unused positions. This wiring will ease future
installation of rectifiers to meet increased load requirements.
NOTE!
A grounding conductor must be provided with each conduit.
Refer to Figure 15 for connection details and recommended torque.
Procedure
1.
For systems with covers, remove the top rear cover from the system cabinet.
2.
Install conduit fittings as required in the openings in the top rear of the system cabinet. Plug buttons
are provided, and must be installed in the openings not being used.
3.
Route wiring into the system cabinet through the previously installed conduit fittings.
4.
Make input connections as shown in Figure 15. Connect each wire by inserting the stripped end into
the wire opening, and then tightening the screw. Torque connections to value shown in the appropriate
illustration.
NOTE!
The wires must be fully inserted into the power terminal, ensuring that no uninsulated part of the
wire is exposed to the end user.
NOTE!
Make equipment grounding connections to earth ground,
conductor.
5.
Connect equipment grounding leads to the frame ground studs using installer-provided ring lugs and
factory-supplied mounting hardware. Torque connections to value shown in the appropriate illustration.
6.
After all input and equipment grounding connections have been made and checked, reinstall the top
rear cover, if required.
Vertiv
| NetSure™ 7100 Compact DC Power System Installation and User Manual (UM582137100101) | Rev. B
not
to the branch circuit neutral
34
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