Kussmaul Electronics 091-200-12 User Manual
Page 5

II. BOOST VOLTAGE WITH 1-HOUR TIMER
1. Whenever the vehicle is powered from shoreline the charger charges the battery at boost voltage
level for approximately 1-hour. At the completion of 1-hour, which starts when AC power is cycled,
the output voltage switches to “float” voltage level.
III. AUX OUTPUT
1. The AUX output is current-limited to 15 amps via an internal automatic reset fuse. The AUX output
shares current demand with the battery output. The combination of both outputs never exceeds
40 amps. If the AUX output demands 15 amps then the battery output will be limited to 25 amps.
2. The AUX output voltage follows the battery output voltage. If the battery output is regulated at
boost voltage (first 1-hour) the the AUX output is also at boost voltage level. Similarly, if the battery
output is regulated at float voltage then the AUX output is also at float voltage.
WIRING
I. BATTERY CHARGER WIRING INSTRUCTIONS
1. Refer to Installation Wiring Diagram I. and II.
2. Refer to Wiring Specifications to determine the recommended wire size and maximum lengths.
Using a smaller gauge may cause overheating of the terminal. Additional information is available
upon request if longer, larger wiring is required.
3. Double check all wiring before applying AC power to input terminal.
4. Apply AC power (shoreline power) to input terminal and observe that the charger is operating.
5. Verify that the battery voltage appears at the charger output terminals. A minimum of 9 volts is
required to start the charger.
II. WIRING SPECIFICATIONS
170 Cherry Avenue
West Sayville, NY 11796
www.kussmaul.com
Ph: 800-346-0857
Fax: 631-567-5826
5
Length of Wire to Battery (feet)
Battery Charger Connections
V.
BA
T +
AU
X +
CO
M
-
V.
BA
T +
AU
X +
CO
M
-
V.
BA
T +
AU
X +
CO
M
-
Wire # Gauge (awg)
8
12
8
8
12
8
6
12
6
Wire Ferrule Used
09
1-
TE
RF
ER
81
2
09
1-
TE
RF
EG
12
12
09
1-
TE
RF
ER
81
2
09
1-
TE
RF
ER
81
2
09
1-
TE
RF
EG
12
12
09
1-
TE
RF
ER
81
2
09
1-
TE
RF
EB
61
2
09
1-
TE
RF
EG
12
12
09
1-
TE
RF
EB
61
2
0-5
5 - 10**
10 - 20*
* Consult factory if length of wire to battery is longer than 20 feet
** Supplied with wire terminal hardware for 10 foot installation