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5
6. AC ELECTRICAL SUPPLY
The charger must be connected to either a single phase or three phase, 60 Hertz
(± 2%) AC power source. Three phase chargers cannot be powered with a single
phase source.
The following transformer options are available:
TABLE 1 – INPUT VOLTAGE CHOICES
Single phase Three phase
208/240/480VAC, 60Hz 208/240/480VAC, 60Hz
Only the AC input wire configuration for multi-input chargers can be changed. Follow
Figure 1 (page 6) for single-phase input or Figure 2 (page 7) for three-phase input
transformers. A qualified electrical contractor should perform this adjustment.
6.1. BRANCH CIRCUIT PROTECTION
The charger comes with an internal supplementary protective device rated to
accommodate the highest possible current and voltage for that model.
CAUTION: TO REDUCE THE RISK OF FIRE, USE ONLY ON CIRCUITS PROVIDED
WITH BRANCH CIRCUIT PROTECTION CONSISTENT WITH THE
CURRENT INDICATED ON THE FRONT PANEL-RATING LABEL AND
IN ACCORDANCE WITH THE NATIONAL ELECTRICAL CODE,
ANSI/NFPA 70.