PowerVerter® APS 1250W Inverter/Charger with Auto-Transfer Switching and 2 Outlets

Model Number: APS1250


  • 12V DC or 120V AC input; 120V AC output; 2 outlets
  • 1250 watts continuous, 1875 watts OverPower™ and 2500 watts DoubleBoost™ inverter output
  • 2 NEMA 5-15R receptacles
  • 3 stage, 30 amp wet/dry cell battery charger
  • Auto Transfer Switching option for battery backup / UPS operation
  • Reliability enhanced large-transformer design with protected DC wiring terminals

Tripp Lite's APS1250 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. Supplies up to 1250 watts of continuous 120V AC power to 2 AC outlets from any 12V 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 the continuous output for up to 10 seconds, providing the extra power needed to cold 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, 30 amp charging system. In UPS mode, the APS system responds to blackouts and voltage fluctuations with a near instantaneous automatic transfer to battery-derived AC output. Includes a set of high current DC input terminals for simple installation (user supplies batteries and cabling - see owner's 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 items with high current needs on startup. Optional APSRM4 wired remote power switch with full status LEDs provides remote power inverter on/off switching and continuous status information (APSRM4 sold separate). Supports an unlimited amount of runtime with any number of user-supplied batteries connected. Highly adaptable to a variety of applications and site conditions with adjustable charger settings for wet/gel battery types and selectable line to battery power transfer voltages.

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 APS1250's battery in the positive line.

Key Features

  • APS1250 serves as an automotive or stationary DC-to-AC inverter with automatic line-to-battery transfer and integrated battery charger
  • Supports 120V AC output from a 120V AC line power source or 12V DC battery source
  • 16.6 millisecond automatic transfer between line and battery power supports UPS protection during blackouts and voltage fluctuations for equipment compatible with a one cycle transfer time
  • 1250 watts continuous AC output in inverter mode, 1440 watts continuous AC output in AC mode
  • Double Boost™ inverter output supports momentary startup loads up to 200% of the continuous rating for up to 10 seconds
  • OverPower™ inverter output supports longer duration overloads to 150% for 1-60 minutes under ideal battery and temperature conditions (For best results, utilize OverPower usage for as short of a duration as possible, ensure battery bank and cabling is able to provide full nominal DC voltage under load and allow inverter/charger to fully cool before and after OverPower usage).
  • 3 stage, 30 amp battery charger with adjustable settings for wet/gel battery types offers fast, reliable battery recharging
  • Protected hardwire bolt-down input lugs safely accept heavy gauge input wiring from attached battery bank
  • Two built-in NEMA 5-15R output receptacles pass 120V line power or inverter output through to connected equipment
  • Reliability enhanced large-transformer design with secure mounting flanges and protected DC wiring terminals
  • Moisture-resistant construction enables vehicular or marine operation in high humidity environments
  • 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 six front panel LEDs display AC/DC operational modes, overload status, DC voltage level, shutdown status and system fault status
  • Set of 4 configuration dipswitches support wet/gel battery charging profiles, adjustable 135/145V high voltage auto transfer during overvoltages and selectable 75/85/95/105V AC low voltage auto transfer during brownouts
  • Resettable 8A charger AC input breaker and resettable 12A AC output breaker and automatic 2 speed cooling fan protect the inverter from load and temperature related failures
  • Grounding lug properly connects the inverter/charger system to earth ground or vehicle grounding system
  • Automatic overload and thermal shutoff safely turns off inverter as excessive loads or overheating conditions develop
  • Front panel remote control connector enables remote off/on switching (requires APSRM4 switch accessory). Optional APSRM4 accessory also includes user configurable jacks to support inverter shutoff or startup as a vehicle ignition is engaged.

Typical Applications

  • Versatile inverter/charger system with auto-transfer switching serves as an automotive inverter for RVs, over-the-road trucking, conversion vans and fleet service vehicles; a standalone alternative power source for off-grid, alternative energy or export applications and as an uninterruptible power supply (UPS) for items compatible with a 16.6 millisecond transfer time. NOTE: For sump pump applications, Tripp Lite recommends its "UT" Utility Truck Inverter/Chargers.

Package Includes

  • APS1250 Inverter/Charger
  • Instruction manual with warranty information

OVERVIEW

Intended Application Emergency Home Power

OUTPUT

Frequency compatibility 60 Hz
Output watts 1250
Continuous output capacity (watts) 1250
Peak output capacity (watts) 2500
Output nominal voltage 120V
Output voltage regulation LINE POWER (AC): Maintains 120V nominal sine wave output from line power source. INVERTER POWER (AC): Maintains PWM sine wave output voltage of 120 V AC (+/-5%).
Output frequency regulation 60 Hz (+/- 0.3 Hz)
Overload protection Includes 8A input breaker dedicated to the charging system and 12A output breaker for AC output loads
Outlet quantity / type 2 NEMA 5-15R

INPUT

Nominal Input Voltage(s) Supported 120V AC
Recommended Electrical Service DC INPUT: Requires 12VDC input source capable of delivering 125A for the required duration (when used at full continuous capacity - DC requirements increase during OverPower and DoubleBoost operation). For automotive applications, professional hardwire installation with 225A minimum battery system fusing is recommended. AC INPUT: 120VAC
Maximum input amps / watts DC INPUT: Full continuous load - 127A at 12V DC. AC INPUT: 12 amps at 120VAC with full inverter and charger load (6.3A max charger-only)
Input connection type DC INPUT: Set of 2 DC bolt-down terminals. AC INPUT: NEMA 5-15P input plug
Voltage compatibility (VAC) 120
Voltage compatibility (VDC) 12

BATTERY

Expandable battery runtime Runtime is expandable with any number of user supplied wet, gel or SLA batteries
DC system voltage (VDC) 12
Battery Pack Accessory (optional) 98-121 sealed lead acid battery (optional)
Battery charge 30A max, 3 step, float for long term maintenance

UPC ASSIGNMENT

Unit Carton UPC# 037332090126

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 optional APSRM4 accessory when used in inverter mode. In AC uninterruptible power mode, auto/remote setting enables automatic transfer from line power to battery power - to maintain continuous AC power to connected loads.
Front panel LEDs 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.

SURGE / NOISE SUPPRESSION

AC suppression joule rating 450

PHYSICAL

Shipping Dimensions (HWD/in) 12.5 x 11 x 10.75
Shipping Dimensions (HWD/cm) 31.75 x 27.94 x 27.31
Shipping weight (lbs) 24.8
Shipping weight (kg) 11.3
Unit Dimensions (HWD/in) 7 x 8.75 x 9
Unit Dimensions (HWD/cm) 17.78 x 22.23 x 22.86
Unit weight (lbs) 23.2
Unit weight (kg) 10.5
Cooling method Multi-speed fan
Material of construction Polycarbonate
Receptacle Color BLACK
Style Heavy-duty with built-in battery charger
Form factors supported Mounting slots enable permanent placement of inverter on any horizontal surface (see manual for additional mounting information)

ENVIRONMENTAL

Relative Humidity 0-95% non-condensing

LINE / BATTERY TRANSFER

Transfer time from line power to battery mode 16.6 milliseconds (typical - compatible with many computers, servers and networking equipment - verify transfer time compatibility of loads for UPS applications)
Low voltage transfer to battery power In AC "auto" mode, inverter/charger switches to battery mode as line voltage drops to 75V (user adjustable to 85, 95, 105V - see manual)
High voltage transfer to battery power In AC "auto" mode, inverter/charger switches to battery mode as line voltage increases to 135V (user adjustable to 145 - see manual)

SPECIAL FEATURES

Remote control capability Yes

WARRANTY

Product Warranty Period (U.S. & Canada) 1-year limited warranty
Product Warranty Period (International) 2-year limited warranty
Product Warranty Period (Mexico) 2-year limited warranty
Product Warranty Period (Puerto Rico) 1-year limited warranty

† Tripp Lite uses primary and third-party agencies to test its products for compliance with standards. See a list of Tripp Lite's testing agencies.

APS1250 5 5 3 3
It just works!! I got this to replace multiple UPS units for my various computers, routers, switches, phones, satellite boxes, etc. I just paired it with a solar gel battery, and it works 100 times better than a regular UPS--and for less money. On top of that, I have a terrific scaleable source of power for the unbelievable amount of brownouts and outages we have here. I immediately got the same setup in my parents house, and now they barely notice the outages. I think everyone needs one of these! September 5, 2013
GREAT PRODUCT FOR WHEN UTILITY POWER FAILS Because I live in a suburban area, about 35 northeast of Houston, Texas, my neighborhood is subject to occasional electric utility failures... especially during severe thunder storms. I purchased this Tripp-Lite unit over a year ago, and it has served me well. I utilized it to replace several small, battery powered UPS units to power my computers, printers, cable modem and DSL modem. The Tripp-Lite unit has performed flawlessly. When the street power fails, the Tripp-Lite immediately turns itself on, allowing my electronic equipment to continue operating. Then, when the street power comes back on, the Tripp-Lite automatically turns itself off. I use a 100 amp sealed lead-acid car battery to power the Tripp-Lite. It is especially convenient that the Tripp-Lite has a built-in battery trickle charger which operates automatically. This keeps the battery charged at all times. I anticipate the 100 amp battery will probably need to be replaced after three years. But the cost of a new battery does not bother me, because during its life it has served me well... allowing all of my equipment (and data) to remain undamaged when the street power fails. I highly recommend this unit. In fact, I purchased a similar, higher output Tripp-Lite unit for my second residence in Ohio. December 8, 2011
Flawless Operation I use my APS 1250 as a sump pump back-up. I use it with a group 31 deep cycle battery and it works GREAT. It has been in use now for about 2 years. I unplug it about every 6 months to keep the battery active. It last me about 5 hours which is more than enough time for the power to come back online. Great Product Recomended December 8, 2011
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1 year, 4 months ago
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Answer: 
Thank you for your inquiry. From a discharge perspective there is no limit. From a re-charge perspective, the maximum that will allow the batteries to charge properly is +/-600 amp hour.
1 year, 4 months ago
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I need to use this one for my sump pump incase of power outage. I am going to use this unit with auto battery(s). I may not want to make one myself as it may not be secure on both ends, causing short circuit.
2 years, 7 months ago
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Answer: 
Thank you for your inquiry. The cables for the APS units are user supplied.
2 years, 7 months ago
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APS750 Not working?

I have been using a APS 750 for a few years. Lately when the power goes out instead of kicking over to the batteries the system shuts down with a single red light.

There have been no wiring or load changes. The system is being used to keep my heating system and sump pumps powered up through unexpected outages until I can get the generator running.

What could be causing this behavior?
2 years, 5 months ago
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Answer: 
Thank you for your inquiry. You should check the battery(s) to make sure that the voltage is at about 12 volts. If the battery(s) are measuring the correct voltage, you should call into Tech Support for assitance with your product.
2 years, 5 months ago
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2 years, 3 months ago
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Answer: 
Thank you for your inquiry. The country of origin for the APS1250 is China.
2 years, 3 months ago
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inverter efficiency?

What is the efficiency rating on the inverter component of the APS1250 inverter/charger?

I cannot find it anywhere in the PDF manual or posted anywhere on the website.

Is it in the 90% or even 95% range or closer to 80%?

Just trying to calc some loads and need this number so i know what it can handle.
2 years, 1 month ago
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Answer: 
The APS1250 inverter efficiency is 92% at half load and 89% at full load.
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[FAQ-778] What is the main difference between the PV and APS series inverters?

APS series inverters include a built-in battery charger.[Last Updated: Mar 23, 2009]

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[FAQ-1176] Where is the APS1250 made?

The APS1250 is made in China. [Last Updated: Nov 1, 2013]

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