Tripp Lite UT1250UL Utility Work Truck Inverter / Charger are the quiet alternative to gas generators with no
fumes, fuel or noise. It provides equipment with utility or generator supplied AC electricity filtered through
premium ISOBAR surge protection. This DC-to-AC inverter with automatic line to battery transfer and integrated
charging system serves as an extended run UPS, a standalone power source or an automotive inverter suitable
for rugged work site applications. Supplies up to 1250 watts of continuous 120V AC power from any 12V DC
battery or automotive DC source. OverPower inverter output feature temporarily provides up to 150% of the
continuous output for 1-60 minutes, and DoubleBoost inverter output feature delivers up to 200% of continuous
output for up to 10 seconds, providing the extra power needed to start heavy-duty tools and motorized
equipment. When AC cable is connected to a live wall socket, commercial power passes through to connected
equipment and the battery set is recharged via 3-stage selectable 10/40Amp charging system. In UPS mode, the
UT system responds to blackouts and voltage fluctuations with a near instantaneous automatic transfer to
battery derived AC output. A set of high current DC input terminals is included for simple installation (user
supplies batteries and cabling – see owners manual for recommendations). Passes sine wave utility or generator
power during battery charging and UPS line power operation, plus efficient PWM sine wave AC output in inverter
and UPS backup modes. Reliable large transformer design, with frequency control, powers resistive electronic
loads or large inductive motors, compressors and other devices with high current needs on startup. Included is
the APSRM4 wired remote power switch with full status LED’s, which provides remote power inverter on/off
switching and continuous status information. The UT1250UL supports an unlimited amount of runtime with
user-supplied batteries.
auto-transfer switching serves as an
automotive inverter for utility work
trucks, conversion vans and fleet
service vehicles; a standalone power
source for off grid, alternative energy
or export applications, emergency
home power applications such as
sump pumps, and as an
uninterruptible power supply (UPS) for
items compatible with a 16.6
millisecond transfer time
Package Includes
UT1250UL Inverter/Charger
APSRM4 Remote
Remote battery temperature
sensor cable
Instruction manual with warranty
information
NOTE: To protect against high current draw that may occur during inverter failure, a fuse link rated at 200a should be positioned no more than 18" from the
UT1250UL's battery in the positive line.
Features
16.6 millisecond automatic transfer between line and battery power supports UPS protection for equipment compatible with a one cycle transfer time
1250W continuous AC output in inverter mode, 2500W continuous AC output
5
AC mode
in
1/
1250W continuous AC output in inverter mode, 2500W continuous AC output in AC mode
DoubleBoost output supports momentary startup loads of up to 200% of the continuous rating for up to 10 seconds - OverPower output supports duration
overloads to 150% for 1-60 minutes under ideal battery and temperature conditions
3-stage selectable 10/40 Amp battery charger with adjustable settings for wet/gel/AGM battery types
2 NEMA 5-15R GFCI protected outlets pass 120V line power or inverter output through to connected equipment
3 position operating mode switch supports “AUTO” mode to enable automatic transfer between DC and AC modes, CHARGE ONLY to maintain a full
battery charge when AC is present without auto transfer and SYSTEM OFF settings
Set of 6 front panel LED’s display continuous status
Set of 4 dip switches support wet/gel/AGM battery charging profiles, adjustable 135/145V high voltages and selectable 75/85/95/105V AC low voltage
auto transfer during brownouts
Set of 4 additional dip switches support 4 levels of charger limiting relative to output load size, a battery equalization program and battery charger
low/high settings
Resettable 10A charger AC input breaker and settable 12A AC output breaker and automatic 2-speed cooling fan
Automatic overload and thermal (overheating) shutoff
Front panel remote control connector enables remote off/on switching with included APSRM4 remote
Load sensing control dial enables adjustable load threshold required to automatically turn the inverter on and off in DC mode as load conditions change
Includes a battery temperature sensor with 20 foot cable to prolong battery life by adjusting the charge level based on battery temperature
Specifications
OVERVIEW
Intended Application
Utility/Long Haul Truck, Emergency Home Power
OUTPUT
Frequency compatibility
Output watts
Continuous output capacity (watts)
Peak output capacity (watts)
Output nominal voltage
Output voltage regulation
Output frequency regulation
Overload protection
Outlet quantity / type
Outlet details
60 Hz
1250
1250
2500
120V
LINE POWER (AC): Maintains 120V nominal sine wave output from line Source. Inverter Power (AC) Maintains
PWM sine wave output voltage of 120 VAC (+/- 5%)
60 Hz (+/- 0.3Hz)
Includes 10A input breaker dedicated to the charging system and 12A output breaker for AC output loads.
2 NEMA 5-15R
2 NEMA 5-15R GFCI protected outlets
INPUT
Nominal Input Voltage(s) Supported
Recommended Electrical Service
120V AC
DC INPUT: Requires 12VDC input source capable of delivering 127A for the required Duration (when used at full
continuous capacity- DC requirements increase during Over-Power and Double-Boost operation). AC INPUT: 15A
120VAC recommended
2/5
Maximum input amps / watts
Input connection type
Input cord length details
Voltage compatibility (VAC)
Voltage compatibility (VDC)
DC INPUT: Full continuous load 127A at 12 VDC. AC INPUT 20 amps at 120 VAC with full inverter and charger load
12A max charge only)
DC INPUT: set of two (2) DC bolt-down terminals. AC INPUT: NEMA 5-15R GFCI input plug
DC INPUT: User supplies cabling. 6 gauge or larger (see manual) AC INPUT: attached 6ft. AC line cord with plug.
120
12
BATTERY
Expandable battery runtime
DC system voltage (VDC)
Battery Pack Accessory (optional)
Battery charge
Runtime is expandable with any number of user supplied wet or gel or AGM type batteries
12
98-121
sealed lead acid battery (optional)
10A / 40A (selectable)
LEDS ALARMS & SWITCHES
Switches
3 position on / off remote switch enables simple on / off power control plus "auto/ remote" setting that enables distant
on / off control of the inverter system when used in conjunction with
APSRM
remote (included) when used in inverter
mode. In AC uninterrupt
Set of (6) LEDs offer continuous status information on load percentage ( 6 levels reported) and battery charge level
(7 levels reported) See manual for sequences
Front panel LEDs
SURGE / NOISE SUPPRESSION
AC suppression joule rating
600
PHYSICAL
Shipping Dimensions (HWD/in)
Shipping Dimensions (HWD/cm)
Shipping weight (lbs)
Shipping weight (kg)
Unit Dimensions (HWD/in)
Unit Dimensions (HWD/cm)
Unit weight (lbs)
Unit weight (kg)
Cooling method
Material of construction
Receptacle Color
Style
Form factors supported
12.5 x 11 x 10.75
31.75 x 27.94 x 27.31
24.8
11.249
7 x 8.75 x 9
17.78 x 22.23 x 22.86
23.2
10.5
Multi-speed fan
Polycarbonate
White
Heavy-duty with built-in battery charger
Mounting slots enable permanent placement of inverter on any horizontal surface.(see manual for additional
mounting information)
3/5
ENVIRONMENTAL
Relative Humidity
0-95% non-condensing
LINE / BATTERY TRANSFER
Transfer time from line power to
battery mode
Low voltage transfer to battery power
High voltage transfer to battery
power
16.6 milliseconds (typical -compatible with many computers, servers and networking equipment -verify transfer time
compatibility loads for UPS applications)
In AC "auto" mode, inverter / charger switches to battery mode as line voltage drops to 75V (user adjustable to
85,95,105- see manual)
In AC "auto" mode, inverter / charger switches to battery mode as line voltages increases to 135V (user adjustable
to 145 -see manual)
SPECIAL FEATURES
Load Sensing
Remote control capability
Load sense function enables automatic inverter shutoff and startup as connected equipment is powered off and on.
Front panel load sense potentiometer can be set to shutoff or turn on inverter power in response to loads of any
level.
Yes
CERTIFICATIONS
Certifications
Tested to UL 458 (USA) and CSA (Canada)
WARRANTY
Product Warranty Period (U.S. &
Canada)
Product Warranty Period
(International)
Product Warranty Period (Mexico)
Product Warranty Period (Puerto
Rico)
30-month limited warranty
1-year limited warranty
30-month limited warranty
30-month limited warranty
Related Items
Optional Products
Model Number
APSRM4
BP-260
98-121
Description
Remote Control Module - for Tripp Lite Inverters and Inverter/Chargers
Ideal battery housing for use with Tripp Lite PowerVerter APS inverter/charger systems with a 12 or
24V DC system voltage.
12V DC Sealed, Maintenance-Free Battery
Qty.
1
1
1
4/5
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