Solar inverter 3F, 50kW, 4MPPT, PIKO CI 50 KOSTAL / 05-7785 / Inverter, accumulator

Product ID: 05-7785

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4303.35€

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7684.75€

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Updated 11.09.2026 11:08

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Specifications
Description
Documentation
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Input side (DC)

Max. PV power (kWp): 75
Nominal DC power (kW): 50
Rated input voltage (V): 620
Start-up input voltage (V): 250
Max system voltage: 1100V
MPP range at rated output (V): 540...800
Working voltage range (V): 200...960
Max. DC short-circuit current (A): 150 (45/45/30/30)
Max. DC current per DC terminal (A): 18
Internal DC string fuses (A): 20 (10x38 mm, gPV)
Number of DC inputs: 10
Number of independent MPP trackers: 4

Output side (AC)

Rated power (kW): 50
Nominal apparent power (kW): 50
Max. apparent output power (kVA): 55
Min. output voltage (V): 277
Max. output voltage (V): 520
Rated current (A): 72.2
Max. output current (A): 83
Short-circuit current (A): 83
Grid connection: 3N~, 230/400V, 50Hz
Rated frequency (Hz): 50
Min/max grid frequency (Hz): 47/53
Setting range of the power factor: 0.8…1…0.8
Power factor for rated power: 1
Max. THD (%): < 3
Standby (W): <1

Max. efficiency (%): 98.3
European efficiency (%): 98.1
MPP adjustment efficiency (%): 99.9

System data

Protection class: IP65 - moisture resistant
AC cable diameter (min-max): 35...50 mm
AC cable cross-section (min-max): 35...50 mm²
DC cable cross-section (PV/BAT) (min-max): 4...6 mm²
Size [HxWxD]: 710x885x285 mm
Weight: 83 kg
Ambient temperature: -20…60°C
Warranty (Smart Warranty / warranty extension): 10 (5 + 5) years

Smart Project Design

Optimised generator design with system voltage of up to 1100 V
Integrated KOSTAL Smart AC Switch takes the place of the external circuit breaker
Simple DC installation at an attractive cost without any string distribution boxes
Generator is disconnected on site by integrated DC voltage separator
Over-assignment of up to 50% (DC to AC) permits flexible generator design

Smart Performance

Maximum energy yield thanks to high certified efficiency
The connected PV strings are monitored in pairs for optimum monitoring and service
Integrated, certified grid service functions ensure reliable operation

Smart Connected

Simple communication (daisy chain) via dual LAN interface (RJ45) with integrated switch
Tried and tested communication via RS485 bus integrated as standard
Compatible with many plant controllers and data loggers, so you can use the monitoring system you prefer
Trouble-free use in direct marketing thanks integrated feed management
Integrated data loggers back system information up at all times

Smart Installation

Optimum protection from dust and water for tough outdoor use (protection class IP65)
Protection against overvoltage on the AC and DC side type 2
Cost-optimised 4-wire AC connection, no neutral wire

Product data sheet

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