Gold Member Since 2014
Audited Supplier
Shenzhen Must Energy Technology Co., Ltd.

Three Phase Ups, Low Frequency Ups, Online Ups manufacturer / supplier in China, offering Three Phase 20kVA Low Frequency DC384V UPS, PV1800 Mpk Series 2kVA 3kVA 4kVA 5kVA with 60A MPPT Solar Charge Controller Inverter, Air Conditioner 48V 6kw Pure Sine Wave Inverter and so on.

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Supplier Homepage Product Online UPS low frequency Three Phase 20kVA Low Frequency DC384V UPS

Three Phase 20kVA Low Frequency DC384V UPS

FOB Price: US $3,500 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $3,500/ Piece
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Production Capacity: 100 Per Week
Transport Package: in Wooden Box
Payment Terms: L/C, T/T, Western Union

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Basic Info
  • Model NO.: MD-C20K3/3L
  • Type: On-line
  • Feature: Low Frequency
  • Color: Black/Whilte
  • Display: LCD
  • ISO: Yes
  • Plug/Socket: Terminal Block
  • Trademark: MUST
  • Origin: China
  • Phase: Three Phase
  • Protection: Unbalanced Loads
  • Transformer: Isolated Transformer
  • Power Factor: 0.8
  • CE: Yes
  • Warranty: 1 Year
  • DC: 384V
  • Specification: CE/ISO
  • HS Code: 8504402000
Product Description

1. True on-line double conversion(AC/DC, DC/AC) UPS
2. Extremely wide input voltage range and ultra-strong capability against overload
3. IGBT mosfet and SPWM modulation technologies applied
4. Built-in isolated transformer and static switch
5. Built-in battery charger
6. User-friendly digital LED/LCD for system information available at a glance
7. Strong self-diagnosis and low battery voltage, over heat and circiut short protection functions
8. Smart RS232 port for computer monitoring
9. Can cold-start directly and smart operation for users
10. Audible alarm system for faults
Model(MD-C) MD-C10K3/3L  MD-C20K3/3L  MD-C30K3/3L  MD-C40K3/3L  MD-C50K3/3L  MD-C60K3/3L  MD-C80K3/3L  MD-C100K3/3L  MD-C120K3/3L 
Nominal capacity  10KVA/8KW 20KVA/16KW 30KVA/24KW 40KVA/32KW 50KVA/40KW 60KVA/48KW 80KVA/64KW 100KVA/80KW 120KVA/96KW
CONFIGURATION Low Frequency Double Conversion True online
Phase Three Phase 3L+N+G
Input Power Factor 0.9 ( 6pulse Rectifer+Filter ),0.96 ( 12pulse Rectifier+Filter)
Rectifier    ( Input )  Nominal Voltage 380vac, 400vac, 415vac, 200vac, 208vac, 220vac
Range ±25%
Frequency 50Hz±10% or 60Hz±10%
Harmonic Current  6pulse rectifier<30%, 12pulse rectifier+filter<5%
Output ripple wave <2%
Soft Start 0~100% 5Sec
  Charge Current 0.1C ( Automatic adjust according to battery capacity)                                                                                        Example: 100Ah battery, The charge current is setted 10A, or according the Charge time customer need
Battery Type maintenance free lead-acid battery, Optional Lithium battery
Capacity 7999AH settable (capacity vary with power)
Number 384VDC(12v 32pcs or 2v 192pcs), Optional 360VDC (12v 30pcs, or 2v 180pcs)
Inverter Phase Three Phase +N
Rated power Rated Capacity×0.9
Nominal Voltage 380vac, 400vac, 415vac, 200vac, 208vac, 220vac
Output voltage stability ±1%(steady load), ±3%(fluctuation of load)
Frequency stability 50Hz,60Hz<±0. 5% ( unsynchronous )
Crest Factor  >3:1
Output Waveform distortion degree Pure Sine Wave, linear load3%, non-linear load5%
Dynamic Feature Transient voltage±5% ( jump form 0% to 100% ), instant recovery time10ms
Unbalance load voltage ±5%
Overload Protection 115% normal work, 125% 10 mins, 150%1min, 2001s
Efficiency 92% ( Full Load ) 93% ( Full Load )
Bypass Phase 3Phase+N
Input Nominal Voltage 380vac, 400vac, 415vac, 200vac, 208vac, 220vac
Output Nominal Voltage 380vac, 400vac, 415vac, 200vac, 208vac, 220vac
Transfer Time 0ms (Static switch 0ms switch)
Protection Function Input Protection Voltage, Frequency ultralimit, Phase wrong, Phase lost 
Output Protection Overcurrent, Short circuit, Over Voltage, undervoltage
Battery Protection  Overcharge, Overdischarge protection
Temperature Protection Environment over-temperature protection, Inverter over-temperature protection
Hardware Fault Protection Auxiliary power supply abnormal, breaker trip, fuse break, power device overcurrent or overvoltage
Systems Parameters ECO Mode Can set the ECO Mode, High efficiency up to 98%
Voice Alarm Any failure will be alerted
Work Environment Ambient temperature: -3050,Relative humidity: 30%90%, altitude: 2000M                                                  ( power reduce 1% every 100M raised, 4000M utmost)
Cooling Method Forced Ventilation
Communication Port RS232, RS485, Dry contact interface, Optional SNMP card for remote control
Noise(dB) 48~55 55~60 60~65
Mechanical Size (W×D×H)mm 600×620×1250 700×620×1530 980×800×1800
Packing Size (W×D×H)mm 670×690×1460 800×690×1760 1050×870×2030
Net Weight(Kg) 205 265 311 407 485 506 770 913 937
Gross Weight(kg) 236 296 342 447 525 520 812 955 980
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