Making The Dc Output Connections - HindlePower AT30 SERIES Operating And Service Instructions

INSTALLING THE AT30

1.8. MAKING THE DC OUTPUT CONNECTIONS

It is the responsibility of the installer of the AT30 to provide suitable dc
output, battery, and dc load wiring. Follow these steps to connect the
battery to the AT30:
1. Size the dc wiring to minimize voltage drop. The acceptable wire size
depends on your installation. As a guideline, the voltage drop should not
exceed 1% of nominal output voltage at full current.
2. Size the dc output wiring per your battery manufacturer's specifications and
local codes for the rating of the batteries and/or load.
3. The AT30 is factory wired to regulate the output voltage at the output
terminals. If the total voltage drop is greater than 1% (e.g., 1.3V for a 130
Vdc system), remote sense wiring is recommended, see Section 1.9.
4. Do not run the external dc power wiring through the same conduit of the
AT30 enclosure as the external ac power wiring.
5. All specific requirements of your facility take precedence over these
instructions.
PROCEDURE
1. Use a dc disconnect switch or circuit breaker between the AT30 and the dc
bus. This device should have lockout capability to allow the AT30 to be
disconnected from the dc bus for maintenance.
2. Remove the Plexiglas safety shield (if supplied).
3. Run the dc wiring to terminals TB1(+) and TB1(-) on the I/O panel board in
the enclosure. CU-AL Compression lugs are supplied for your convenience.
• Style-5018 enclosure dc output lugs accept #14 - 1/0 AWG wire
• Style-5030/163 enclosure dc output lugs accept #6 AWG - 350 MCM wire
4. Strip the insulation 0.5in / 12.7mm on the incoming ac wires and connect the
wires to the appropriate dc lugs as shown on the next page.
5. Using proper tools, securely tighten the compression screws on the lugs to
proper torque values.
6. Check all connections and reinstall the Plexiglas safety shield (if supplied).
NOTES
1. The dc output terminal hardware fastens other components mounted to the
I/O panel. Be careful not to disconect any other component leads.
2. Always use a proper ground.
3. Use copper or aluminum conductors only.
4. Refer to images on the following page for I/O panel layout.
14
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CAUTION