KSTAR UD series online double conversion UPS System adopts advanced DSP control and N+X redundancy design to enhance the reliability. With high power factor (PF) and ECO mode operation for energy saving, UD series is the cost-effective choice in the industry. It has been widely used for server rooms, personal computers, data warehouses, medical clinics, industrial application and office facilities.

General Features

● True double-conversion

● Real-time digital signal processor (DSP) control

● N+X parallel redundancy

● Selectable quantity of battery for each group:for long run unit

● Adjustable charging current via LCD

● 3-stage charging design optimizes battery performance

● ECO mode operation for energy saving

● Self-diagnosis at startup

● Emergency power off function(EPO)

● Maintenance bypass is convenient for maintenance

● Generator compatible

● Communications:RS-232,USB,SNMP card(Optional), Relay card (Optional)

● Cold start

Technical Specification

MODEL

UD10 / UD10L

UD15 / UD15L

UD20 / UD20L

UD30 / UD30L

UD40L

UD60L

UD80L

Capacity (VA/Watts)

10K / 9K

15K / 13.5K

20K / 18K

30K / 27K

40K / 36K

60K / 54K

80K / 72K

INPUT

Nominal Voltage

380/400/415Vac(3Ph+N+PE)

Operating Voltage Range

208~478Vac@half load; 305~478Vac@full load

Operating Frequency Range

50Hz：45~55Hz，60Hz：54~66Hz

Power Factor

≥0.99

Max.voltage: 220V：+25%(Optional +10%,+15%,+20% )

Bypass Voltage Range

230V：+20%(Optional +10%,+15%)

240V：+15%(Optional +10% )

Min. voltage: -45% (Optional -10%, -20%,-30%)

ECO Range

Same as bypass

Harmonic Distortion (THDi)

≤3%(100% non-linear load)

OUTPUT

Output Voltage

380/400/415Vac(3Ph+N+PE)

Power Factor

0.9

Voltage Regulation

±1%

Frequency

Line Mode

±1%/±2%/±4%/±5%/±10% of the rated frequency(Optional)

Bat. Mode

50/60(1±0.1%)Hz

Crest Factor

3:01

Harmonic Distortion (THDv)

≤2% with linear load

≤5% with non-linear load

Waveform

Pure Sinewave

Transfer Time

Utility to Battery : 0ms; Utility to Bypass: 0ms

EFFICIENCY

Efficiency

95%

BATTERY

Battery

Standard unit

±120Vdc (20pcs 12V9AH)

±120Vdc (2x20pcs 12V9AH)

±120Vdc (3x20pcs 12V9AH)

N/A

Voltage

Long run unit

Selectable Voltage:±96V/±108V/±120Vdc

Selectable Voltage:±192V/±204V/±216V/ ±228V/±240Vdc

Charging

Standard unit

1.35

2.7

4.05

N/A

Current (A)

Long run unit

Max.current 10A

Max.current 15A

Max.current 30A

PROTECTI

ON

Line Mode

Load≤110%: last 60min, ≤125%: last 10min, ≤150%: last 1min, ≥150% turn to bypass mode immediately

Overload

Bat. Mode

Load≤110%: last 10min, ≤125%: last 1min, ≤150%: last 5S, ≥150% shut down UPS immediately

Bypass Mode

20A(Input breaker)

32A(Input breaker)

40A(Input breaker)

63A(Input breaker)

80A(Input breaker)

100A(Input breaker)

125A(Input breaker)

Short Circuit

Hold Whole System

Overheat

Line Mode: Switch to Bypass; Backup Mode: Shut down UPS immediately

Battery Low

Alarm and Switch off

INDICATORS

Audible & Visual Alarms

Line Failure, Battery Low, Overload, System Fault

Status LED & LCD Display

Line Mode, Backup Mode, Eco Mode, Bypass Mode, Battery Low, Battery Bad, Overload & UPS Fault

Parameters On The LCD Panel

Input/Output Voltage, Input/Output Frequency, Load Level, Battery Level, Inner Temperature & Remaining Battery Backup Time

MANAGEMENT

Communication Interface

RS-232,RS-485,USB,Parallel card, SNMP card(Optional), Relay card (Optional),Battery temperature sentor(optional)

ENVIRONMENT

Operating Temperature

0～40℃

Storage Temperature

-25～55℃

Humidity Range

0～95% (Non-condensing)

Altitude

< 1500m

Noise Level

<55dB

<58dB

<63dB

PHYSICAL

Dimension W×D×H (mm)

250×828×868

360×828×868

Net Weight (kg)

115/57

170/63

171/64

223/71

73

118

122

STANDARDS

Noise Suppression

Complies with EN62040-2

Safety

IEC/EN62040-1,IEC/EN60950-1

EMC

IEC/EN62040-2,IEC61000-4-2,IEC61000-4-3,IEC61000-4-4,

IEC61000-4-5,IEC61000-4-6,IEC61000-4-8

Specifications are subject to change withour notice in advanced