Datasheet

ManualsBrandsSTECA ManualsDC DC Converters & InvertersGrid-tie inverter

COOLCEPT / COOLCEPT-X / COOLCEPT³ / COOLCEPT³-X / COOLCEPT FLEX

StecaGrid 3203x StecaGrid 4003x StecaGrid 4803x StecaGrid 5503x

DC input side (PV generator)

Maximum input voltage 1000 V

Operating input voltage range 250 V … 800 V

Number of MPP tracker 1

Maximum input current 11.0 A

Maximum short circuit current +20 A / -13 A

Maximum input power at maximum active

output power

3300 W 4100 W 4920 W 5620 W

AC output side (Grid connection)

Grid voltage 320 V … 480 V (depending on regional settings)

Rated grid voltage 400 V

Maximum output current 7.0 A 7.0 A 10.0 A 10.0 A

Maximum active power (cos phi = 1) 3200 W 4000 W 4800 W 5500 W

Maximum active power (cos phi = 0.95) 3040 W 3800 W 4560 W 5225 W

Maximum active power (cos phi = 0.9) 2880 W 3600 W 4320 W 4950 W

Maximum apparent power (cos phi =

0.95)

3200 VA 4000 VA 4800 VA 5500 VA

Maximum apparent power (cos phi = 0.9) 3200 VA 4000 VA 4800 VA 5500 VA

Rated power 3200 W 4000 W 4800 W 5500 W

Rated frequency 50 Hz and 60 Hz

Frequency 45 Hz … 65 Hz (depending on regional settings)

Night-time power loss < 3 W

Feeding phases three-phase

Total harmonic distortion (cos phi = 1) < 1 %

Power factor cos phi 0.8 capacitive … 0.8 inductive

Characterisation of the operating performance

Max. efficiency 98.6 % 98.6 % 98.7 % 98.7 %

European efficiency 97.9 % 98.1 % 98.2 % 98.3 %

Californian efficiency 98.3 % 98.4 % 98.5 % 98.5 %

MPP efficiency > 99.8 % (static), > 99 % (dynamic)

Own consumption < 8 W

Power derating at full power from 50 °C (T

amb

) 50 °C (T

amb

) 50 °C (T

amb

) 45 °C (T

amb

)

Safety

Isolation principle no galvanic isolation, transformerless

Grid monitoring yes, integrated

Residual current monitoring yes, integrated (The design of the inverter prevents it from causing DC leakage current)

Operating conditions

Area of application indoor rooms with or without air conditioning, outdoors with or without protection

Climate protection class as per IEC

60721-3-4

4K4H

Ambient temperature -25 °C … +60 °C

Storage temperature -30 °C … +70 °C

Relative humidity 0 % … 100 %, non-condensating

Noise emission (typical) 29 dBA

Fitting and construction

Degree of protection IP 65

Overvoltage category III (AC), II (DC)

DC Input side connection Phoenix Contact SUNCLIX (1 pair), mating connector included

AC output side connection Wieland RST25i5 plug, mating connector included

Dimensions (X x Y x Z) 399 x 657 x 227 mm

Weight 12.0 kg

Communication interface RS-485 (2 x RJ45 sockets; connectable to Meteocontrol WEB‘log or Solar-Log™), Ethernet interface (1 x RJ45)

Integrated DC circuit breaker yes, compliant with VDE 0100-712

Cooling principle temperature controlled fan, variable speed, internal (dustproof)

Test certificate see certificate download on the product page