American Power Conversion K250EI, BK600EI, BK400EI user manual Noise and surge suppression

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4.1 Noise and surge suppression

The UPS contains high performance EMI/RFI (Electro-Magnetic and Radio Frequency Interference) noise and surge suppression circuitry to protect your computer equipment. The UPS provides this suppression continuously, whether or not it is turned on. Nor- mally, the UPS will continuously filter surges and electrical noise without using the battery charge. The suppression circuitry will reduce the amplitude of these power disturbances to conform to the strict requirements of all modern computing equipment.

The illustration above shows what a typical “medium” amplitude surge or spike looks like when present on the utility voltage. Surges up to 15 times larger than this are easily suppressed by the UPS. Surges are commonly caused by nearby lightning activity and motor load switching created in air conditioners, elevators and heat pumps.

The illustration above shows what EMI/RFI noise looks like when present on the utility voltage. The UPS “filters” out this noise with components whose electrical resistance is very high at radio frequencies. EMI/RFI noise is commonly created by the same activity which produces surges but can also be caused by nearby radio transmitters and blinking neon bulbs and signs.

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Contents APC Back-UPS Pleasesavethismanual ImportantSafetyInstructionsPleasesaveorrecyclethepackagingmaterials TableofContents 2Userreplaceablebattery 3Optionswitches0Introduction 1Overview5SurgesuppressionandEMI/RFIfiltering Test / Alarm Disable switch6Remoteinterface 0Safety 0Sécurité!Françias 0Sicherheit!Deutsch Vorsicht¡Seguridad!Español ¡Atencion0Installation 2Placement1Receivinginspection 3Loadtypes4ConnectingtotheUtility 5BatterychargingConnecting Your Equipment to the UPS Example labels found at system equipment rear panels Test for Proper Operation 8Overloads0PrinciplesofOperation Noise and surge suppression 2Loadtransferswitch 3BatteryCharger4Battery 5InverterMonitoring and control electronics 6Transformer8Operationduringautilityfailure Page Controlsandindicators Power I/0 switchTest/Alarm Disable switch on units so equipped 3AudiblealarmOption Switch #1 4OptionSwitchesOption Switch #2 and #3 Option Switch #2 Switch #3 Undervoltage Transfer Option Switch #42PowerChuteSoftware600VAonly 0UPSmonitoring3ComputerInterfacePort600VAonly 0Difficulty 0Difficulté Françias0SchwierigkeitDeutsch 0Dificultad Español ¡Cuidado1TroubleshootingChart Mo r1TroubleshootingChart 2ReplacingtheBattery 3ObtainingService StorageConditions StoringtheUPS2ExtendedStorage 0RunTimeVersusLoad Specifications 10.2TransferCharacteristics10.3OutputCharacteristics 10.4Batteryandcharger10.6Operatingenvironmentandphysicaldimensions Surge and noise suppressionDeclaration of Conformity LimitedWarranty Page Serial number

K250EI, BK400EI, BK600EI specifications

American Power Conversion (APC) is renowned for its innovative power management solutions, and its uninterruptible power supplies (UPS) are a testament to this commitment. Among their product lineup, the BK600EI, BK400EI, and K250EI models are popular choices designed to provide reliable power protection to various devices and systems.

The BK600EI is a 600VA UPS, ideal for protecting office equipment, personal computers, and networking devices. One of its standout features is the line-interactive technology, which provides voltage regulation during brownouts and surges. This model also supports an LCD display that offers real-time data on battery status, load capacity, and input voltage, enabling users to monitor their power environment easily. Additionally, the BK600EI has a compact design, making it suitable for space-limited areas.

Conversely, the BK400EI is a slightly lower-capacity model, rated at 400VA, making it an excellent option for smaller systems or devices with lower power requirements. Similar to the BK600EI, it employs line-interactive technology, ensuring continuous operation even during power fluctuations. This model is designed with automatic shutdown software that protects devices from data loss during power outages, a critical feature for businesses that rely on information stability and integrity.

The K250EI stands out with its 250VA capacity, catering to entry-level applications. This model is perfect for those needing basic power protection for devices such as routers, modems, or small desktop computers. The K250EI is designed with overload protection, ensuring that devices are safeguarded against electrical surges and overload conditions. The LED indicators provide a quick visual reference for the unit's operational status, reducing user effort in monitoring performance.

All three models share essential characteristics, such as a compact footprint, user-friendly interfaces, and advanced battery management technologies that improve longevity and efficiency. They also come equipped with multiple outlets to ensure users can connect various devices simultaneously. Furthermore, each model is engineered to minimize the environmental impact, boasting energy-efficient designs that contribute to reduced power consumption.

In conclusion, the APC BK600EI, BK400EI, and K250EI UPS models exemplify affordable and effective power management solutions. With their high-quality features, advanced technologies, and protective characteristics, they are well-suited for home offices, small businesses, or individual users seeking reliable power backup and protection.
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