Fire Hazard - Kussmaul Electronics Kussmaul Chief Auto Charge Guide D'utilisation

Preparing For Installation
Over-current Protection Disconnect
Electrical codes require the DC circuit from each battery to the
charger to be equipped with a disconnect and an over-current
protection device, usually within 7 inches (17.8 cm) of each
battery. The devices are usually DC-rated circuit breakers, fused
disconnects, or a separate fuse and disconnect for each circuit.
These devices must be rated for DC voltage and current and be
rated to withstand the short circuit current available from the
connected battery bank. Do not substitute devices rated only for
AC voltage; they may not operate properly.
The current rating of the DC fuses must be correctly matched to
the size of the DC wiring used, in accordance with the applicable
codes. This helps to protect the installation against fire in case of
any overcurrent or short circuit fault.
Table 2 Fuse Sizes versus Wire Sizes
AWG Max. Fuse/Breaker
8
6
DC Auxiliary
The DC auxiliary wire must be sized at 12AWG and colored red
for positive (+), if available. On the DC auxiliary device, its
negative (–) wire must be connected to the vehicle's common
Chassis ground bus. As always, refer to the local electrical codes
for your specific installation to determine the correct gauge.
18
50 A
80 A
AC Wiring

FIRE HAZARD

Use only on circuits provided with 20A maximum branch circuit
protection in accordance with National Electrical Code, NFPA 70
and Canadian Electrical Code (CSA C22.1).
Failure to follow these instructions will result in death or serious
injury.
The AC wiring must be of sufficient size and it must be protected
by the appropriate size and type of input breaker based on the
jurisdiction and application. Some basic examples are given
below.
The AC input wiring for the Auto Charge should be three-
conductor cable, providing a ground , line, and neutral conductors
(or G, L, N) in an outer jacket, rated a minimum of 75 °C, and sized
based on the AC input current to the charger (see AC Input
Specifications on page 73) and on the value of overcurrent
protection provided.
Kussmaul Chief Auto Charge Battery Charger Owner's Guide
DANGER