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UPS Type:

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Help with Uninterruptible Power Supplies (UPS) specifications:

General Specifications
   UPS Type       
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   Single Phase       Single-phase uninterruptible power supplies (UPS) sit between an AC outlet and an electronic device to provide power conditioning, back-up protection, and distribution for electronic equipment loads. They also prevent power disturbances from affecting the performance and life of the electronic device and vital data.  
   Three Phase       Three-phase uninterruptible power supplies (UPS) operate in conjunction with existing electrical systems to provide power conditioning, back-up protection, and distribution for electronic equipment loads that use three-phase power.  
   DC Power       DC uninterruptible power suppliers are designed specifically for DC systems. This type of UPS provides continuous back-up for telecommunication, telephone, and other systems that use DC power. 
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   Technology       
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   Delta Conversion       Delta conversion technology delivers a fraction of the input power to the load. 
   Ferro-Resonant       Ferro-resonant technology enables the UPS to operate like a standby/offline device. The difference, however, is that a ferro-resonant transformer is used to filter the output. 
   Fuel Cell UPS       This type of UPS uses a fuel cell as the power source. The fuel cell replaces the battery used in other types of units. 
   Hybrid Topology       Hybrid topology (double conversion on-demand) operates as an offline/standby for a particular preset window of power conditions. When the power conditions are outside of this predefined window, the UPS switches to online/double conversion operation. This type of operation is highly efficient. 
   Line-Interactive       The inverter works in parallel with conditioned input AC power to supply power to the load (boosting or bucking), and only handles the full load power when the AC input power fails. A line-interactive UPS provides protection from spikes and surges. It also supplies auxiliary power if a voltage sag or blackout occurs. Unlike a standby unit, a line-interactive UPS provides an automatic voltage boost (or buck) when the power dips, but without accessing the batteries. This feature provides continuous line conditioning, promotes longer battery life, and eliminates electronic "noise" that can cause minor application errors and loss of data. 
   On-line (Double-Conversion)       The load is supplied by a continuously-operating power converter that receives its input from a DC supply (a battery) and a large battery charger that are connected in parallel. By using an on-line conversion technique, an on-line UPS provides the highest-quality power protection. The UPS takes the incoming AC power and recreates it by converting the voltage to DC; then conditions the power to eliminate noise, sags, or surges; and, finally, converts the power back to AC before it exits the UPS. Because power runs continuously through the inverter, there is no transfer or switching time to battery mode in the event of a blackout. 
   Off-line (Standby)       With off-line or standby power supplies, power comes directly from the AC outlet until the voltage sags or the power fails. When such conditions occur, a battery-powered inverter turns on almost immediately and continues the supply of power. Batteries are charged as necessary when direct AC power is available. Even while power comes directly from the AC outlet, an off-line or standby UPS provides protection from voltage spikes and surges. 
   Rotary       A rotary UPS uses the inertia of a large spinning flywheel to provide short-term power in the event of a power loss. 
   Other       Other unlisted, specialized, or proprietary technologies. 
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   Protection       
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   Lightning       The device provides protection against lightning. 
   Over Voltage       The device provides protection against over voltage transients. 
   Power Failure       The UPS protects when a total loss of power takes place. 
   Short Circuit       The device provides protection against short-circuits. 
   Surge       The device provides protection against surge. 
   Voltage Sags       The device provides protection against voltage sags.  Voltage sags are a brief reduction in the voltage on AC power systems. 
   Under Voltage       The UPS provides protection against low-voltage changes for prolonged periods. 
   Unbalanced Loads       The device provides protection against unbalanced Loads. 
   Other       Other unlisted protection types. 
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Performance
   Volt-Amp Rating       Uninterruptible power supplies (UPS) are rated in volt-amperes (VA) or kilo volt-amperes (kVA). The VA rating is the maximum number of volts * amps that a device can deliver. Note that the  VA rating is not necessarily the same as the power drain (in watts) of the equipment. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Watt Rating       Specify the watt rating only if the volt-amp (VA) rating is unknown. The watt rating is less than or equal to the VA rating. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
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Compliance
           
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   UL 1449 Rated Surge Protection       UL 1449 is a standard from Underwriters Laboratories (UL) that covers transient voltage surge suppressors (TVSS) that are intended for permanently-connected, cord-connected, and direct plug-in applications. UL 1449 establishes various values for suppressed voltage ratings (SVR), and includes a requirement that surge suppression devices be marked with the surge let-through voltage for a specific UL test. By assigning a UL voltage rating for a particular mode (i.e., N-G), it can be inferred that this mode is protected against surges. For the three-wire, single-phase branch circuit commonly used in the U.S. and Canada, the power transfer potential, L-N, is called the normal mode. Sometimes, this mode is also called the transverse mode. Any voltage measurement taken with respect to ground (N-G and L-G) represents common mode potentials. These are sometimes abbreviated as L=N-G. Note, however, that limiting voltages are rounded up to the nearest UL rating (e.g., a SVR of 380V would be classified as a UL 1449 400 rating). Consult the supplier for the actual suppressed voltage rating. 
   Grade MIL 901 / 167       Grade MIL 901 / 167 is a U.S. military specification for uninterruptible power supplies. 
   FCC       Under Rules and Regulations, Title 47, Part 15 Subpart B, the Federal Communications Commission (FCC) regulates all commercial electronic devices (unintentional radio-frequency radiators) destined for sale in the United States that have clocks / oscillators that operate at a frequency greater than 9 kHz and that use digital techniques. This includes most products that employ microprocessors, as well as RF devices. 
   UL       Underwriters Laboratories (UL) is a non-profit organization that tests components, systems, and materials according to its published standards for safety. Products that receive UL approval bear a UL Mark. 
   IEC 62040-3       IEC 62040-3 is a generic UPS standard from the International Electrotechnical Commission (IEC). It defines limits on the amplitude and duration of the output voltage. 
   C-UL Listing Mark
C-UL Listing Mark
 
     The C-UL Listing Mark from Underwriters Laboratories (UL) is applied to products for the Canadian market. These products meet Canadian safety requirements, which may differ from U.S. safety requirements.  
   Other       Other unlisted compliances. 
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