EAST stock code: 300376

EA660 25-125 kVA

Characteristics Technical Specifications Documents

l  DSP microprocessor control technology

l  True on-line, double conversion power protection, and with strong load capacity

l  Modular hot-swappable design for easy maintenance and scalability

l  High efficiency up to 96.5% at most frequently-used load rate

l  Inbuilt integrated PDU system simplifying installation and saving investment

l  Output power factor 1.0, input power factor 0.99, input THDi <3%, output THDv 1%

l  138 ~ 485 Vac wide input voltage range, 50 Hz / 60 Hz grid self-adaptive

l  Soft-start technology improves generator matching up to 1:1.1

l  Support two modes of frequency conversion: 50 Hz input / 60 Hz output and 60 Hz input / 50 Hz output

l  Intelligent hibernation mode upgrading enables UPS to operate efficiently at low load rate

l  Advanced parallel and redundancy technology, support 4 units connected in parallel

l  Share battery pack in parallel operation, saving user’s battery cost

l  Flexible charger parameter and battery configuration settings, battery number 30 ~ 46 pcs selectable

l  Intelligent battery management technology (Intelligent charge/discharge management and float charging voltage temperature compensation), extending battery lifespan

l  Support cold start with battery and auto restart with mains power

l  Self-aging function to simplify debugging and test on site

l  Fault-tolerant design for fan system, taking 30% loads when 2 fans fail and 50% loads when 1 fan fails

l  Superior hardware and software protection function, robust self-diagnostic function, and abundant event log for check

l  7 inches LCD touch screen, friendly human-machine interface

l  System with built-in SNMP, supporting RS485 and dry contacts

l  Back-feed protection function (optional)



Rated capacity of system cabinet


Number of power module


Rated capacity of power module



Input wiring

Three-phase five-wire (3Φ+N+PE)

Rated voltage

380Vac / 400Vac / 415Vac

Voltage range

135 ~ 305Vac (linear derating), 305 ~ 485Vac (no derating)

Frequency range

40 ~ 70Hz

Input power factor

Full load>0.99; half load>0.98


<3% (linear full load); <5% (non-linear full load)

Battery voltage

± 240Vdc (±180, ± 192, ±204,   ±216, ±228, ±252, ±264, ± 276 selectable)

Number of battery

40pcs 12V batteries (30, 32, 34, 36, 38, 42, 44, 46pcs selectable)


Output wiring

Three-phase five-wire (3Φ+N+PE)

Rated voltage

380Vac / 400Vac / 415Vac

Output voltage regulation accuracy


Output frequency accuracy

Synchronized with utility in mains power mode; 50Hz/60Hz ± 0.05% in battery mode

Output power factor


Output waveform distortion (THDv)

≤1% (linear load); ≤4% (non-linear load)

Crest factor


Inverter overload capacity

105%< load ≤110% for 60min,110%< load ≤125% for 10min,

125%< load ≤150% for 1min, load >150% for 300ms

Bypass overload capacity

Temperature ≤30℃,   load ≤135% for long term; temperature ≤40℃, load ≤125% for long term; load >1000% for 0.1s



Up to 96%

Max. number of parallel connections


Transfer time

0 ms


Lack-phase protection, phase sequence error protection, short circuit protection, overload protection, over-temperature protection, battery low voltage protection, output undervoltage protection, fans failure   protection etc.


RS485, dry contacts, SNMP


7 inches LCD touchscreen


Operating temperature

0℃ ~ 40℃

Storage temperature

-40℃ ~ +70℃

Relative humidity

0% RH ~ 95% RH (non-condensing)


≤1000m, above 1000m, derating 1% for each additional 100m

Protection level

IP 20


≤ 65dB (at 1m)


Cabinet dimensions (W x D x H) (mm)

600 x 850 x 2000

Module dimensions (W x D x H) (mm)

442 x 620 x 86

Cabinet weight (kg)


Power module weight (kg)


EA660 25 kVA - 125 kVA Datasheet - PDF

EA660 25 kVA - 125 kVA User Manual - PDF

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