The EA880 low frequency UPS is the second generation digital true double conversion online UPS designed by STAR Electronics INC.. It supplies pure and uninterruptible AC power to computers, date centers, network administration centers, other equipment, etc. The system uses DSP technology with good quality power components, lots of auto protection, advanced software management and communication interface, etc.

Features
1. Advanced DSP, Digital Control Technology
The inverter control, phase synchronous, I/P rectify control, logic control systems are utilized in this online UPS, and all of them take advantage of the DSP technology. This UPS has features of high precision, high speed, simplified control circuit and high reliability.

2. High Input Power Factor, Green and Energy-Saving Power
1.) The I/P power factor is above 0.98.
2.) Input current THDI is less than 5%, so it can greatly reduce the humornic pollution of the AC network. At the same time, the efficiency of the usage of the utility is improved so the installation cost and the noise is also reduced.
3.) The speed of the fan is auto-adjustable.
4.) Our UPS is green energy-saving power.

3. Wide Input Voltage and Frequency Range
This EA880 series of online UPS 1/1 3/1 is designed with a wide input voltage and frequency range, so it helps reduce the frequency of battery discharge to prolong the battery life. It can work with an oil generator.

4. Reliable Parallel Technology
With the adoption of the most advanced parallel control technology and digital equal flow control technology, this online UPS is highly compatible and has the choice of N+1 parallel and redundancy and share battery sets.

5. Abundant Interface Setting Functions
The UPS is designed with front panel buttons, making it convenient for the user to set the O/P voltage and frequency. The UPS can be set to connect equipment with different voltage and frequency.

6. Flexible Network Monitoring and Management
1.) The UPS is available with RS232, USB, EPO, optional RS485, optional SNMP, optional dry contact, etc.
2.) It can support TCP/IP protocol with remote control.
3.) Due to network monitoring and management, the UPS has the function of self-diagnosis, sending, in a timely manner, the demanding instruction, email, automatically saving the files, turning off the UPS, etc.

7. Large LCD Display in Both Chinese and English
The EA880 series UPS comes with a large LCD display to show the working status and technical parameters of the UPS. It gives failure alarm information and reports which makes the daily maintenance of the UPS very easy.

8. Perfect Protection
This kind of UPS is provided with I/P and O/P over-voltage protection, low voltage protection, overload protection, short-circuit protection, over-heat protection, surge protection etc. so the UPS can work in different environments.

9. Cold Start and AC Start Function
The UPS can be started with the battery directly when the AC fails. In AC mode, UPS can be started by AC directly without battery. When the battery discharges and there is low voltage protection, after AC returns, the UPS starts up automatically.

10. Easy Maintenance Design
Our EA880 online UPS is designed with an English display option, manual bypass design, and failure information enquiry orientation. It is convenient to use and improves the usability and maintainability of the system.

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Model		EA884	EA886	EA888	EA8810	EA38810	EA38815	EA38820	EA38830
Rating Capacity		4KVA	6KVA	8KVA	10KVA	10KVA	15KVA	20KVA	30KVA
Operating Principle		On line static bypass switch, double conversion
Phase		1:1				3:1
Rectified I/P	P.F.	>0.98				>0.95
	Rating Voltage	200/208/220/230/240VAC				380VAC
	Voltage Range	110-280V				380VAC±25%
	Rating Frequency	50Hz/60Hz
	Frequency Range	40-70Hz
	THDI	<10%				***
	Soft Start	0 to 100%, 3 to 5 seconds
Bypass I/P	Voltage Range	±15%
	Frequency Range	±5%
Charge	Float Charge	220VDC
	Current	6 to 12A (Extension)
	Protection	Charge voltage, over current protection, short circuit protection
Battery	Model	Lead acid maintenance free battery
	Quantity	16x12V
	Rating Voltage	192Vdc
AC O/P	P.F.	0.8 (Lagging)
	Phase	L+N+G
	Rating Voltage	200/208/220/230/240VAC
	Rating Frequency	50Hz/60Hz
	Frequency	<±0.1Hz in battery mode
	Voltage	<±1% (Static)
	Crest Factor	3:1
	Wave Distortion	Liner load<3%; unlinear load<5%
	Dynamic Load Voltage Instant Distortion	Liner load<±5% (from 0-50%-100%)
	Dynamic Response Recover Time	<40ms
	Overload Capacity	105%~125%10min; 125%~150% 1min; >150%10ms
	Transfer Time	0mS (AC-Battery); <4ms (bypass-inverter)
Alarm	AC Abnormal	Intermission 4S, beep1S; 1min auto alarm eliminate
	Battery Low Voltage	Intermission 1S, continuous beep1S
	Overload	Intermission 4S,continuous beep1S
	Failure	Continuous beep
System	Display	LED+LCD
	Protection	O/P short circuit, overload, O/P over/low voltage, battery low voltage, over temp protection
	Efficiency	100% linear >85%
	Communication Interface	RS232 (RS485, RJ45, USB selectable)
	Operate Temp	0~40℃
	Relative Humidity	0~90% (Non-condensing)
	Cooling	Intelligent fan cooling
	Noise dB	<55 (≤1M)				<60(1M)
	I/P and O/P	Terminal
Others	Surge Protection	IEC60664-1
	Electromagnetism Capability	GB7260.2-2003
Physics	Configuration	Tower, IP21
	Weight (Kg)	60	68	100	128	176	218	258	344
	Dimension (W×H×D) mm	315×915×670				480×1150×860