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Note: UPS are temporary "switch-over" solutions that provide power for 5 to 15 minutes (100% load). UPS beep during a power failure.
An inverter is required to power devices for an extended period of time. Note that continuous power cuts will shorten battery life. The warranty covers charge cycles, not a period of time. Stage 4 load-shedding may shorten battery life to 6 months or less if batteries discharge below recommended charge levels (Lead Acid 50% DOD, LiFePO4 80% DOD). APC (American Power Convertion) UPS 220V / 230V uninterrupted power suppliesAPC (American Power Convertion). UPS 220V / 230V uninterrupted power supplies. Computer hardware South AfricaPrices displayed on our site are a reference and are subject to change without notice, quotation prices are final, subject to stock availability. All transactions are subject to our terms of sale. E&OE. | ||||
| There are 193 products in UPS 220V / 230V uninterrupted power supplies
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Display all brands for this type of product Display all APC (American Power Convertion) products APC easy-ups BV650i - black with AVR+power conditioning, line interactive, 650VA / 375w, 6 power outputs, with wall mounting sockets - No software + interface [more info] This product has been added to the cart.
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Display all brands for this type of product Display all APC (American Power Convertion) products APC BX750MI Back-UPS 750VA 230V AVR UPS with IEC sockets, Line Interactive, 6 ms typical transfer time, Lead-acid battery, 8 hours typical recharge time, RJ45 10 / 100 / 1000 BASE-T Ethernet protection [more info] This product has been added to the cart.
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APC EASY UPS BV 650VA, 375W AVR, IEC C13 Outlet, 230V [more info] This product has been added to the cart.
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Display all brands for this type of product Display all APC (American Power Convertion) products BV800I
APC EASY UPS BV 800VA, AVR, Schuko Outlet, 230V [more info] This product has been added to the cart.
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APC Back-UPS 750VA, 410W, 230V, AVR, IEC Sockets [more info] This product has been added to the cart.
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APC UPS BK325I - 325VA UNIT WITH SURGE ARREST & BATTERY BACKUP GERMAN [more info] This product has been added to the cart.
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APC EASY UPS BV 1000VA, AVR, IEC Outlet, 230V [more info] This product has been added to the cart.
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APC Back-ups BX750Mi - black with AVR+power conditioning, line interactive, 750VA / 410w, 4x iEC power outputs - RJ-45 UTP protection; with monitoring software, USB interface [more info] This product has been added to the cart.
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APC EASY UPS BV 800VA, 450W AVR, IEC C13 Outlet, 230V [more info] This product has been added to the cart.
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Display all brands for this type of product Display all APC (American Power Convertion) products UPAPSMX039-2
APC Smart-UPS X 48V Battery Extension Cable, Shipping Weight: 2.00(lbs) 0.91(kilos), Shipping Dimensions: 8.80x 6.80x 2.50(in) 22.40x 17.30x 6.40(cent), UPC Code: 731304269045 [more info] This product has been added to the cart.
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Display all brands for this type of product Display all APC (American Power Convertion) products APC Smart-UPS X 48V Battery Extension Cable, Shipping Weight: 2.00(lbs) 0.91(kilos), Shipping Dimensions: 8.80x 6.80x 2.50(in) 22.40x 17.30x 6.40(cent), UPC Code: 731304269045, ©2014 ComXpert International CC [more info] This product has been added to the cart.
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APC Back-UPS 950VA, 480W, 230V, AVR, IEC Sockets [more info] This product has been added to the cart.
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Display all brands for this type of product Display all APC (American Power Convertion) products APC Back-ups BX1200Mi - black with AVR+power conditioning, line interactive, 1200VA / 650w, 6x iEC power outputs - RJ-45 UTP protection; with monitoring software, USB interface [more info] This product has been added to the cart.
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APC Back-ups BX950Mi - black with AVR+power conditioning, line interactive, 950VA / 480w, 6x iEC power outputs - RJ-45 UTP protection; with monitoring software, USB interface [more info] This product has been added to the cart.
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BK350EI - 350VA UNIT COMPLETE SYSTEM PROTECTION, USB OR SERIAL CONNECTIVITY AND SOFTWARE. [more info] This product has been added to the cart.
What would you like to do now: More information about APC (American Power Convertion) UPS 220V / 230V uninterrupted power suppliesThis category consists of 13 pages. You can navigate through the pages by clicking the page number, or by clicking NEXT / PREVIOUS. The following brands are currently available for "ups 220v / 230v uninterrupted power supplies". You can select to display only a specific brand for the category "ups 220v / 230v uninterrupted power supplies" by selecting the brand's icon at the top of this page.
An uninterruptible power supply, also uninterruptible power source, UPS or battery/flywheel backup, is an electrical apparatus that provides emergency power to a load when the input power source, typically mains power, fails. *Note: A UPS will beep continuously when power is off. This is normal. Offline UPS Offline UPS connects the computer to the ESKOM's power grid (or to a generator) until the voltage falls below a certain level, in which case, the UPS switches over to battery backup. The switch-over time can be as long as 25 milliseconds depending on the amount of time it takes the standby UPS to detect the lost utility voltage. The UPS will be designed to power certain equipment, such as a personal computer, without any objectionable dip or brownout to that device. Online UPS Online UPS connects the computer directly to the battery backup at all times. This type of UPS is able to tolerate continuous under-voltage brownouts and over-voltage surges without consuming the limited reserve battery power. It instead compensates by automatically selecting different power taps on the auto-transformer. Double conversion UPS The primary power path is the inverter / battery and it is not the AC mains. This means that the output power is supplied by the battery all the time and no switch-over happens if power fails (0ms switch over) Other UPS features may include:
What is the difference between VA and WattsUPS are rated in VA (Volt-Amps). This is a basic rating for UPS and is the Voltage multiplied by the Amperage the UPS handles. At 220Volts, a UPS that can supply 1Amp would be rated 220VA. This however is not the real power for AC devices because AC power rating requires the power factor to be taken into account. A 1000VA UPS would therefore have an AC power rating of approximately 600Watts. What is power factor? In AC circuits, the power factor is the ratio of the real power that is used to do work and the apparent power that is supplied to the circuit. Typical power factors
UPS
are sensitive to the voltage and frequency on its input - this is the
way it detects whether it should switch to battery backup mode or not.
This is normal operation for a UPS. Some generators, especially the cheaper "home use" generators, are not always calibrated accurately when it comes to frequency (50Hz in South Africa), while the voltage seems to be in range. If the frequency is border-line, the UPS tends to switch over to battery mode whenever it falls out of range, and then switches off when it is in range again. The best way to correct this on/off behaviour is to set the throttle on the generator to a point where the UPS becomes stable. Note: A Voltage regulator / AVR will not correct the frequency and will do little to fix this behaviour. An AVR is all about Voltage, and the AVR will fix voltage fluctuations from a generator, protecting sensitive equipment from Voltage dips and spikes. | |||||
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