Liebert UPS System user manual Lcd+Led

Chapter 1 Introduction

	Capacity		20kVA		30kVA		40kVA	60kVA
	Model		UL33-0200L	UL33-0300L			UL33-0400L	UL33-0600L
			105% < load 125% , transfer to bypass mode after 10±0.1min;
	Overload capability(inverter)		125% < load 150% , transfer to bypass mode after 1 minute;
			When load > 150%, transfer to bypass mode after 200ms
			135% Rated Current continuously
			135%~170% for 1 minute
Output	Overload capability(bypass)		>170%, shutdown in 2s
			1000% rated current for 20ms(a standard for selecting static
			switch)
	Ratio of output	current peak	3: 1
	value to RMS value
	Transfer time(normal mode)		0(uninterrupted transfer)，15ms(interrupted transfer)
	Transfer time(ECO mode)		15ms
System	System efficiency(linear load)		87%		87%		88%	89%
	Efficiency in battery		92%		93%		93%	94%
	mode(linear load)
	Display		LCD+LED
		Conduction	EN50091-2
		Radiation	EN50091-2 CLASS-A
	EMC/EMI	Harmonic	IEC1000-3-4
		Immunity	EN 61000-4-2.3.4..6.8.9.11			Level III,
			EN 61000-4-5		Level Ⅳ
	MTBF(inverter)		30,000 hours
	MTBF(Single UPS)		150,000 hours
	MTBF(1+1 parallel operation		400,000 hours
	system)
	Safety		CCEE
	Audible noise at 2m		<60dB					<65dB
	Cross current without		<3A
	load(1+1)
	Cross current without		<4A
	load(3+1)
	current unbalance rate(1+1)		<3%
	current unbalance rate(3+1)		<4%

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