INSTALLATION, OPERATING AND TROUBLESHOOTING INSTRUCTIONS FOR MODEL A75D / A75DE –
THREE PHASE
Page 10 of 20
SHOCK
The battery charger in its shipping container withstands shock developed when one edge of the container
is dropped six (6) inches while the opposite edge is resting on the ground, or it is dropped two (2) inches
without any physical damage or degradation of the electrical performance.
VIBRATION
The battery charger in its shipping contained, withstands vibration encountered in shipping without
physical damage or degradation of the electrical performance.
ALTITUDE
This battery charger is capable of operation at altitudes up to 10,000 feet at an ambient temperature of
up to +40 degrees C.
VENTILATION
The unit should be mounted so that ventilating openings are not blocked and air entering the cabinet
does not exceed 50 degrees C (122 degrees F).
INSTALLATION INFORMATION
MINIMUM WIRE SIZES
See Wire Size Chart, lists the ac input and dc output minimum wire size requirements. At distances
exceeding 10 feet, the dc wire size should be chosen to keep the voltage difference between the units dc
output terminals and the battery at less that ½ volt when the unit is fully loaded. See the section on
“POWER CABLING FORMULAS”. The total loop length is twice the distance from the wiring point to the
unit.
NATIONAL CODES
These wire sizes are based on those recommended in the National Electric Code table 310-16 for copper
wire at 75 degrees C conductor temperature operating in an ambient of 30 degrees C. For higher
operation temperatures refer to the de-rating factors in the National Electric Code table 310-16.
FIELD GROUND TERMINAL
This terminal should be connected to an earth ground. The size of the conductor is based on National
Electric Code table 250-95 for copper wire at 75 degrees C. See table for recommended wire sizes.
MOUNTING
Install the battery charger so that the flow of air through the ventilators is not obstructed.
