Tripp Lite TMU Series - Manual (Page 10)

10T
• Connect DC Wiring: Though your UPS
System is a high-
efficiency device, its
rated output capacity
is limited by the
length and gauge of
the cabling running
from the battery to the unit. Use the shortest
length and largest diameter cabling (maximum
2/0 gauge) to fit your UPS System’s DC
Input terminals. Shorter and heavier gauge
cabling reduces DC voltage drop and allows
for maximum transfer of current. Your UPS
System is capable of delivering peak
wattage at up to 200% of its rated continu-
ous wattage output for brief periods of time.
See Specifications page for details. Heavier gauge cabling should be used when continu-
ously operating heavy draw equipment under
these conditions. Tighten your UPS System
and battery terminals to approximately 3.5
Newton-meters of torque to create an effi-
cient connection and to prevent excessive
heating at this connection. Insufficient tight-
ening of the terminals could void your war-
ranty. See Specifications page for
Minimum Recommended Cable Sizing
Chart.
• Connect Ground: Using a #8 AWG wire
or larger directly connect the Main Ground
Lug to earth ground. See the Feature
Identification section to locate the Main Ground
Lug on your specific UPS System model.
All installations must comply with national
and local codes and ordinances.
• Connect Fuse: NEC (National Electrical
Code) article 551 requires that you connect
all of your UPS System’s positive DC
Terminals directly to a UL-listed fuse(s) and
fuse block(s) within 18 inches of the battery.
The fuse’s rating must equal or exceed the
Minimum DC Fuse Rating listed in your
UPS System’s specifications. See
Specifications for fuse and fuse block rec-
ommendations. See diagrams below for
proper fuse placement.
Battery Connection
Connect your UPS System to your batteries using the following procedures:
WARNING!
• Failure to properly ground your UPS System to earth ground may result in a lethal electrical
shock hazard.
• Never attempt to operate your UPS System by connecting its DC terminals directly to output from a
generator rather than a battery or battery bank.
• Observe proper polarity with all DC connections.
DC Connectors
In a parallel connection, your UPS System’s Nominal DC Input Voltage (12V DC) must match the voltage of your battery or batteries (12V
DC). In a series connection, your UPS System’s Nominal DC Input Voltage must match the number of batteries multiplied by their voltage.
For example, a 12V DC UPS System would require two 6V batteries connected in series (12 = 2 × 6). See diagram below. Contact Tripp Lite
technical support for assistance with additional parallel, series or series/parallel connections.
Earth Ground Battery UL-Listed Fuse & Fuse Block (mounted within 18 inches of the battery) Large Diameter
Cabling, Maximum 2/0 Gauge to Fit Terminals Alternator (for vehicle connection only) 5
4 3 2 1
12 Volts UPS System
12 Volts
Single Battery Connection
4
1
2
3
12 Volt UPS System 6 Volts 6 Volts
Multiple Battery Connection (Series)
1
2 2 4
3
5
Optional connection
for Vehicular
applications only.
12 Volt UPS System 12 Volts
Single Battery Connection
1
2
4
3