Welcome to JFY!

Welcome to JFY!

You are here:Home > Products > UPS > Low Frequency Online UPS > Low Frequency Online UPS 3 phase in 3 phase out 160~500KVA
  • Low Frequency Online UPS - Low Frequency Online UPS 3 phase in 3 phase out 160~500KVA
  • Low Frequency Online UPS - Low Frequency Online UPS 3 phase in 3 phase out 160~500KVA

Low Frequency Online UPS - Low Frequency Online UPS 3 phase in 3 phase out 160~500KVA

Low Frequency Online UPS

Low Frequency Online UPS 3 phase in 3 phase out 160~500KVA

Industry Automation protection

Power Protection for Transportation, Electricity, Medical service, Stadium

Large IDC Center

Banking, Insurance, Stock Service Centers

Communication Network Management Center




Title: Mr. Ms.



CONVOY MF33 series 160~500KVA low frequency UPS is transformer based UPS which address the needs of high end business. Features with double conversion architecture topology, advanced DSP control technology, latest large power IGBT and SCR devices. MF33 offer you more value through its reliable and efficient digital architecture which integrate digital control, information technology, network connectivity into one. It offers perfect Sine wave output which suits all kinds of load condition.


  • Advance Architecture

    Online Double Conversion, complete isolation between load and Grid/Generator

    Zero phase shift output isolation transformer based. Superior overload capacity. Minimize the neutral to earth voltage and load harmonic current to protect inverter. Powerful capacity to handle 100% unbalanced load

    High Power Factor

    High Rated Output Power Factor 0.9, deliver more real power

    High input power factor 0.95 (with filter), lower pollution

    Dual DSP Controlled

    Fully digitally controlled by twin DSP, features with more stability and reliability

    Highly Environment Adaptive

    Wide input voltage tolerance (±25%)

    Wide input frequency range (45~65Hz)

    Superior Overload Capacity

    Superior overload capacity and short circuit capacity (5s) to ensure system stability and safety under extreme harsh condition

    Advanced Battery Management

    Advanced battery management technology which match the battery features to prolong the battery life.

    Temperature compensation function included.

    Battery discharge time assessment, periodic self detection

    Battery switch status gathering, detection and control

  • N+X Paralleling Redundancy

    Up to 6 cabinets direct paralleling, no need for centralized bypass cabinet


    LBS (Load Bus Synchronization) enable two independent UPS systems to form Dual Bus Architecture for higher reliability

    Highly Adapt to Generator

    Power Walk In function lower down the inrush current of system start, so to minimize the requirement for generator capacity

    Intelligent Fan Speed Regulation

    Automatically adjust fan speed according to inside temperature and load rate to obtain lower noise, longer fan life and less energy consumption

    DC Cold Start

    Start the UPS into battery (charged) mode directly, convenient operation option for user

    Auto Restart

    The UPS can be programmed to auto restart after invert shutting down when the battery reaches EOD (End of Discharging)

    Modular like Design for Power Device

    IGBT based SPWM inverter. Power devices built in rectifier, static switch and inverter are equipped with independent dissipaters. Combine with front access design, make installation and maintenance easie

  • 7 inch LCD Display

    ARM controlled 7 inch TFT provides real time UPS operating status and parameters information in bilingual

    Full Protection

    Self-diagnose when starting

    Full software and hardware protection (short circuit, inverter overheat, battery voltage low & high, surge)

    Flexible Operation Mode

    Normal mode, Battery mode, Bypass mode, Maintenance mode, Auto-restart mode, Source Share mode, ECO mode, Frequency converter mode

    Multiple Connectivity Choice

    Standard: RS232/RS485.

    Optional: SNMP/JBUS/MODBUS/Dry contact card. Flexible connectivity for real time management

    Abundant Options

    Harmonic filter, Bypass load sharing inductor.

    Class C surge protection device

    Parallel cable/LBS cable

    SNMP/JBUS/MODBUS/Dry Contact card

    Battery Ground Fault Detector

    Battery Temperature Sensor

    UPS Ambient Signal Adapter

Technical data

Model MF33160 MF33200 MF33300 MF33400 MF33500
Capacity(KVA/KW) 160/144 200/180 300/270 400/360 500/450
Main input Nominal voltage(Vac) 380/400/415
Voltage range(Vac) ±25%
Phase three phase five wire(3L+N+PE)
Frequency range(Hz) 45~65
Input power factor >0.95(with filter)
Bypass input Nominal voltage(Vac) 380/400/415
Voltage range(Vac) +10%,+15%,+20%(setting);-10%,-20%,-30%(setting)
Phase three phase five wire(3L+N+PE)
Bypass tracking(Hz) ±2%(±0.5%,±1%,±2%,±3% setting)
  Voltage(Vac) 380/400/415 ±1%
  Power factor 0.9
  Frequency(Hz) Synchronized with bypass
  Wave Form Sine wave,THDV<1%(linear load)
  Transfer time(ms) 0
  System efficiency ≥93% ≥95%
  Overload 105%~110%: 60min;110%~125%: 10min;125%~150%: 1min;>150%: 10s
  Battery voltage(Vdc) (standard 384)/(396/408 customized)
  Operating temperature(℃) -10~40
  Storage temperature(℃) -25~55(battery excluded)
  Humidity range 0~95%(no condensing)
  Operating altitude <1500m
  Noise(dB) <65 <70 <75
Other Characteristic          
  Alarm function Overload, main fault, UPS fault, battery voltage low, etc
  Protection function short circuit, overload, overheat,battery voltage low, surge protection(optional)
  Communication interface standard:RS232/RS485, optional:SNMP/JBUS/MODBUS/Dry contact card
  Dimension(W×D×H)mm 1000×900×1900(6P)
  Net weight(kg) 1200(6P)
  Standards YD/T1095-2008