Comparison Eleks Amper U 12-1/50 v2.0 11 kVA vs Eleks Amper-Duo U 16-1/50 v2.0 11 kVA

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	Eleks Amper U 12-1/50 v2.0 11 kVA	Eleks Amper-Duo U 16-1/50 v2.0 11 kVA
	Outdated Product	from $527.60 Outdated Product
all specs only differences
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AVR type	thyristor	thyristor
Input voltage	230V (1 phase)	230V (1 phase)
Power	11 kVA	11 kVA
Specs
Input voltage range	100 – 295 V	100 – 295 V
Output voltage accuracy (±)	3.5 %	2.5 %
Response time	20 ms	20 ms
Efficiency	98 %	98 %
Voltmeter	digital	digital
Sockets
Terminal connection
Protection levels
Protection	overheating short circuit overload over / under voltage	overheating short circuit overload over / under voltage
General
Installation	wall floor	wall floor
Cooling	active	active
IP protection rating	20	20
Dimensions	530x295x175 mm	545x285x170 mm
Weight	25 kg	27 kg
Added to E-Catalog	july 2019	november 2016

Output voltage accuracy (±)

The largest deviation from the nominal output voltage (230 V or 400 V, depending on the number of phases), which the regulator allows when operating in the normal input voltage range (see above). The smaller this deviation, the more efficiently the device works, the more accurately it adapts to “changes in the situation” and the less voltage fluctuations the connected load is exposed to.

When choosing for this parameter, it is worth considering first of all how demanding the connected devices are for voltage stability. On the one hand, high stability is good for any device, on the other hand, it usually means a high price. Accordingly, it usually does not make sense to buy an advanced stabilizer for an unpretentious load like light bulbs and heaters, but for sensitive devices like audio systems or computers, it can be very useful.