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Comparison Logicpower LP-850VA 850 VA vs Powercom BNT-1000AP Schuko 1000 VA

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Logicpower LP-850VA 850 VA
Powercom BNT-1000AP Schuko 1000 VA
Logicpower LP-850VA 850 VAPowercom BNT-1000AP Schuko 1000 VA
from $62.76 up to $74.12
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from $120.41 up to $132.00
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Typesmartsmart
Form factorstandard (Tower)standard (Tower)
Switching to battery6 ms4 ms
Input
Input voltage1 phase (230V)1 phase (230V)
Input voltage range165-275 V165 – 275 V
Max. current10 А
Bypass (direct connection)is absentmanual/automatic
Output
Output voltage1 phase (230V)1 phase (230V)
Peak output power850 VA1000 VA
Rated output power510 W600 W
Output waveformsimilar to a sinusoid (approximated)similar to a sinusoid (approximated)
Output frequency50-60 Hz50/60 Hz
Redundant sockets22
Socket typetype F (Schuko)type F (Schuko)
No reserve C13/C14 connectors1
Battery
Total battery capacity8.5 Ah7.2 Ah
Number of batteries12
Full charge time480 min360 min
Cold start
Protection
Protection
short circuit protection
overload protection
noise filtering
 
sound alarm
short circuit protection
overload protection
noise filtering
data line protection
sound alarm
Fusemeltingmelting
Surge protection220 J460 J
Control interfaces
 
USB
General
Operating temperature0 – 40 °C0 – 40 °C
Noise level40 dB
Dimensions (HxWxD)160х95х330 mm192x130x382 mm
Weight6.93 kg13.4 kg
Added to E-Catalogapril 2012april 2012

Switching to battery

The time required to transfer the load from mains power to battery power. In standby and interactive UPSs (see Type), a short-term power failure occurs at this moment — accordingly, the shorter the time to switch to the battery, the more uniform the power supply is provided by the source during a power failure. Ideally, the switching time for the traditional 50 Hz AC frequency should be less than 5 ms (a quarter of one cycle of the sine wave). With inverter UPSs, the transfer time is, by definition, zero.

Input voltage range

In this case, the input voltage range is implied, in which the UPS is able to supply a stable voltage to the load only due to its own regulators, without switching to the battery. For redundant UPSs (see "Type") this range is quite small, approximately 190 to 260 V; for interactive and especially inverter ones, it is much wider. Some UPS models allow you to manually set the input voltage range.

Max. current

The maximum current drawn by the UPS. In fact, the current reaches its maximum value only when the UPS is operating from the mains with maximum load power and a completely discharged battery. However, when calculating the load on the power grid, this parameter should be taken into account.

Bypass (direct connection)

Bypass(by-pass) means such a mode of operation of the UPS, in which power is supplied to the load directly from an external source — the mains, diesel generator, etc. — practically without processing in the UPS itself. This mode can be activated either automatically or manually.

— The automatic bypass is a kind of safety measure. It turns on when the UPS in normal mode cannot supply power to the load — for example, when the UPS is overloaded due to a sharp increase in the power consumption of the load.

— Manual bypass allows you to enable this mode at the request of the user, regardless of the operating parameters. This may be necessary, for example, to hot-swap a battery (see below for details) or to start equipment that has a starting capacity greater than that of the UPS. Technically, it can also play the role of a security measure, but automatic systems are more reliable in this sense.

Some UPSs provide both options for enabling the bypass.

Peak output power

The maximum output power supplied by the UPS, in other words, the highest apparent load power allowed for this model.

This indicator is measured in volt-amperes (the general meaning of this unit is the same as that of the watt, and different names are used to separate different types of power). The total power consumption of the load, implied in this case, is the sum of two powers — active and reactive. Active power is actually effective power (it is indicated in watts in the characteristics of electrical appliances). Reactive power is the power wasted by coils and capacitors in AC devices; with numerous coils and/or capacitors, this power can be a fairly significant part of the total energy consumption. Note that for simple tasks, you can use data on effective power (it is often given for UPS — see below); but for accurate electrical calculations it is worth using the full one.

The simplest selection rule for this indicator is: the maximum output power of the UPS in volt-amperes should be at least 1.7 times higher than the total load power in watts. There are also more detailed calculation formulas that take into account the characteristics of different types of load; they can be found in special sources. As for specific values, the most modest modern UPSs give out 700 – 1000 VA, or even less — this is enough to power a PC of average performance; and in the most "heavyweight" models, th...is figure can be 8 – 10 kVA and higher.

Rated output power

The effective output power of the UPS is, in fact, the maximum active power of the load that can be connected to the device.

Active power is consumed directly for the operation of the device; it is expressed in watts. In addition to it, most AC devices also consume reactive power, which is "wasted" (relatively speaking) is spent by coils and capacitors. Apparent power (denoted in volt-amperes) is precisely the sum of active and reactive power; it is this characteristic that should be used in accurate electrical calculations. See "Maximum output power" for details; here we note that when selecting a UPS for a relatively simple application, it is quite possible to use only effective power. This is at least easier than converting the watts claimed in the characteristics of the connected devices into full power volt-amps.

The most modest modern "uninterruptibles" give out less than 500 watts. 501 – 1000 W can be considered an average value, 1.1 – 2 kW is above average, and in the most powerful models this figure exceeds 2 kW and can reach very impressive values (up to 1000 kW or more in some industrial class UPS).

Output frequency

The frequency (frequency range) of the AC voltage output by the UPS. For computer technology, the frequency range of 47-53 Hz is considered normal, although the smaller the deviation from the 50 Hz standard, the better. On the other hand, in some UPS models, this frequency can be automatically synchronized with the frequency of the mains — so the power supplied to the load will not differ regardless of whether the load is powered by the mains or from the battery. In this case, a wider frequency range, on the contrary, is more desirable.

No reserve C13/C14 connectors

The number of C13 / C14 connectors without connection to the power reserve, provided in the design of the UPS.

Unlike connectors with a reserve, such connectors do not protect against loss of voltage in the network — for devices connected to them, the UPS only works as a surge protector, smoothing out power surges. This allows you to connect to the UPS devices that do not require continuous power and are not afraid of shutdowns, such as speakers or printers. In the event of a power failure, such devices will not consume battery power, and the UPS will be able to power devices for which continuous power, on the contrary, is essential for longer.

The C13/C14 connector is known colloquially as a "computer socket"; it delivers the same 230 V as a regular household outlet, but is not compatible with conventional plugs, as uses three flat contacts. However, there are adapters between these standards.

Total battery capacity

The capacity of the battery installed in the UPS. For models with multiple batteries, this is both the total working capacity and the capacity of each individual battery: the batteries in such devices are usually connected in series, so that their total capacity corresponds to the capacity of each individual cell.

Theoretically, a higher battery capacity means the ability to power loads of a given capacity for longer. However, in fact, this parameter is more of a reference than practically significant. The fact is that the actual amount of energy stored by the battery depends not only on the capacity in amp-hours, but also on the voltage in volts; this voltage is often not specified in the characteristics, despite the fact that for accurate calculations it must be known. So when choosing, you should focus on more "close to life" characteristics — first of all, on the directly claimed operating time in different modes (see above).
Logicpower LP-850VA often compared
Powercom BNT-1000AP Schuko often compared