Making The Ac Input Connections - HindlePower AT30 SERIES Operating And Service Instructions

INSTALLING THE AT30

1.7. MAKING THE AC INPUT CONNECTIONS

The AT30 is a commercial product, and not intended for use in a
residential environment, or to be powered by low-voltage public mains.
It is the responsibility of the installer of the AT30 to provide suitable ac
supply wiring. Wiring must be approved for use in the country in which
the AT30 is installed. When selecting wire sizes, consult the data
nameplate decal affixed to the front panel of the AT30 for maximum
voltage and current requirements. The AT30 must also be grounded in
accordance with the electrical rules of the country where installed.
Follow these steps to connect ac power to the AT30:
1. Confirm that the AT30 main power transformer (T1) is properly jumpered for
your ac input supply voltage. See Section 1.6 for details.
2. Use a branch circuit breaker or fused disconnect switch upstream from the
AT30. This device should have lockout capability so that the ac input supply to
the AT30 can be de-energized for charger maintenance. A time delay circuit
breaker or slow-blow fuse is recommended.
3. Size the branch circuit breaker or fused disconnect switch for the maximum ac
input current of the AT30. This rating is listed on the left-hand side of the
AT30 data nameplate. For a comprehensive list of these maximum ac input
values, access standard (DC5016-00).
An ac feeder breaker (or fuse) is required if the AT30 features 480 Vac
input, is equipped with the standard AIC breaker, and no ac fuses. The
feeder must be rated to interrupt the short-circuit current of the ac supply.
4. Size ac input wiring per the National Electric Code (NEC) and local codes for
the trip rating of the branch circuit breaker or fused disconnect switch.
5. Do not run external ac input power wiring through the same conduit of the
AT30 enclosure as external dc output power wiring.
6. All site requirements of your facility take precedence over these instructions.
PROCEDURE
1. Remove the acrylic safety shield (if supplied).
2. Run the ac input supply wiring into the AT30, ending at terminals TB1-L1,
TB1-L2, TB1-L3, and TB1-GND on the I/O panel board.
3. The AT30 features four (4) CU-AL compression lugs on the ac input terminals.
• Style-5018 and Style-5030 enclosure ac lugs accept #14 - 1/0 AWG wire
• Style-163 and Style-198 enclosure ac lugs accept #6 AWG - 350 MCM wire
4. Strip 0.50in / 13mm from the insulation of the incoming ac input supply wiring.
5. Connect the wires to the appropriate ac lugs as shown on the next page.
6. Using proper tools, securely tighten the compression screws on the ac lugs to
proper torque specifications.
7. Check all connections and reinstall the acrylic safety shield (if supplied).
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WARNING
NOTICE