UPS Terminology

Volt Amps is the standard measurement of the power capacity of the UPS. Similar to watts, it loosely defines the “amount of stuff” you can plug into the unit without it overloading. Its value does NOT reflect the amount of runtime. That value is Volt-Amp-Hours or VAH
Watts is what most people use to describe the power needs of a piece of equipment. 100watt light bulb, 300watt heater, etc.
Watts are derived from Volts x Amps (VA), but not the same. However, think of Watts as useable power, where Volt-Amps is more theoretical.
A 3000va UPS can’t support 3000 watts because not all of the power can be converted or delivered. This ratio between VA and Watts is based on something called Power Factor. This factor means that some 3000va units can only support 2100watts.
We refer to the UPS units as having a low yield (2100watts) and high yield (2850watts) based on the ratio.
In most cases if you have 1000watts of stuff, its safe to assume you need a 1300va (+30%) UPS
Topology can be thought of as the method of UPS protection. There are several types. The most common are standby, line-interactive, and online (aka double conversion). For each type of Topology, the UPS reacts differently during a power disruption.
Standby – SWITCHES. If there is a problem, it switches over to clean battery power
Line Interactive – MODERATES. If there is a problem it first moderates the power by bucking or boosting the power to meet the equipment’s needs. This is why this often called Smart
Online – ISOLATES. If there is a problem, it doesn’t care because power problems are fully isolated from the power system
Volt Amp Hours or VAH is a rough measurement guide used to compare the amount of runtime in similar UPSes.
Its a product of the battery voltage X amp-hours of the batteries X the number of batteries. In general a UPS with 500vah will have less runtime than 1000vah unit at a given wattage. Many factors effect runtime, so the 1000vah unit won’t necessarily have twice the runtime as a 500vah unit.
We use VAH to help you gauge runtime and extended run battery packs
Frame is the mounting style of the UPS. Rackmount frame units are designed to fit standard 19″ racks. These units also will have a “U” size which refers to the thickness of the unit in the rack.
Tower or Desktop units are designed to mount on the floor.
However nearly every rackmount can be floor mounted with our tower conversion kit. Towers frequently can not be converted to rack style

Product Conditions

Fully Restored and Refurbished In House with Fresh New Power-sonic batteries. These are very clean and include all bezels. Each unit passes our 8 point performance check prior to shipping
Refurbished with New Powersonic batteries. Features New Bezels, Super Clean appearance, Branded Box & with all accessories.
Designed for Resellers looking to give extra value to their clients
Newy is an unused unit turned in by distributors when batteries expired. We refresh them with Genuine batts & resell them as close-to-new.. or Newy. Features 24month warranty
Starter units are refurbished units with recently expired new batteries. They will provide the same performance, but just not like our new units. Also, they may has cosmetic imperfections, so they should not be resold.  Often people buy these when they have their own batteries.

Understanding Voltages

When choosing a UPS, understanding voltages is critical. INPUT voltage is the voltage that the UPS accepts as normal from the outlet in the wall.  OUTPUT voltage is usually the same as the input. Usually you need a special UPS or transformer to CHANGE the voltage. See “Changing Voltage
120volt – also called low voltage, 110v, home power. This is the standard power coming from your traditional 3 prong outlets
This is the most common commercial US high voltage power. Sometimes called 220volt, its derived from 3phase power which is supplied to most commercial facilities. Many UPSes will only work on 208volt.
240volt – the ONLY other high voltage US power. Its far less common, but often seen as a superior to 208volt power. Some equipment needs 240volt power to run effectively
Surprisingly, 240volt is also found in your house. Your range and dryer run on this 240volt power. Home servers that want high voltage must choose a 240volt capable UPS. Beware most APC units are 208volt only
I call it unicorn power, because it simply doesn’t really exist in nature. My brain hears 208volt every time you say 220volt, so be warned

This is international power. Europe, Asia and Africa all use this power. Be careful, as it is structurally very different than 240volt power. Contact us for any US application which needs or has 230volt power.  Browse 230volt units.

Several UPS brands are rated for all types of high voltage. For these systems, we call them universal voltage. They work on 208v, 240, and 230v. You can usually set the voltage to whatever voltage you have or have it automatically adjust.
This 4wire power is a source of much confusion and frequent returns. Structurally, this is a type of power that brings both low and high voltage power to the UPS. This is done by bringing a 4th wire to your standard circuit. By doing this the UPS can output both low and high power. However if you don’t have the 4wire input, it wont work. There is no conversion from 208v to split phase 120/208v.
UPSes output the same voltage as you give them. If you need to change the power, you have 3 options.
1) Buy a transformer (see store) to convert the power. Or 2) Use an Online UPS to buck or boost the voltage. Most online units can change 208v to 240v. Or 3) Use a split phase unit, but that can be complicated

Plug Types