SUN-18-25K-G05

Name: SUN-18-25K-G05
SKU: SUN-18-25K-G05

String inverter · Three-phase · 18 – 25 kW

18 – 25 kWThree-phaseIP65

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18 – 25 kWRated power

Three-phasePhase

2MPPT trackers

98.5 %Max. efficiency

Technical data

PV input
	SUN-18K-G05	SUN-20K-G05	SUN-22K-G05	SUN-23K-G05	SUN-25K-G05
Max. PV input power (W)	23400	26000	28600	29900	32500
Max. PV input voltage (V)	1100
Rated PV input voltage (V)	600
MPPT voltage range (V)	200 – 1000
Start-up voltage (V)	250
Max. input current per MPPT (A)	26
Max. short-circuit current per MPPT (A)	39
Number of MPPT trackers	2
PV strings per MPPT	2
AC output
Rated output power (W)	18000	20000	22000	23000	25000
Max. apparent power (VA)	19800	22000	24200	25300	27500
Rated AC voltage (V)	400
Rated AC output current (A)	26.1	29	31.9	33.4	36.2
Phase	Three-phase
Rated AC frequency (Hz)	50/60
Max. AC output current (A)	28.7	31.9	35.1	36.7	39.8
Total harmonic distortion (THDi) (%)	<3
Power factor	0.8 leading to 0.8 lagging
Grid connection type	3L/N/PE
Rated AC voltage options (V)	220/380; 230/400
AC voltage range (relative to rated voltage)	0.85 Un-1.1 Un
AC grid frequency range (50 Hz / 60 Hz) (Hz)	45-55 / 55-65
DC injection current	<0.5% In
Efficiency
Max. efficiency (%)	98.5
European efficiency (%)	98
MPPT efficiency (%)	>99
Protection
Protection functions	DC reverse polarity protection; AC output overcurrent protection; AC output overvoltage protection; AC output short-circuit protection; thermal protection; insulation impedance detection; DC component monitoring; arc fault circuit interrupter (AFCI) (optional); anti-islanding protection; residual current detection; DC switch
Surge protection level	Type II (DC), Type II (AC)
Anti-PID function	Optional
General data
Dimensions (W x H x D) (mm)	362 × 527 × 220
Weight (kg)	20
Ingress protection (IP rating)	IP65
Operating temperature range (°C)	−25 – 60
Relative humidity (%)	0 – 100
Max. operating altitude (m)	4000
Cooling	Intelligent air cooling
Noise level (dB)	≤50
Topology	Non-isolated
Warranty (years)	5
Overvoltage category	OVC II (DC), OVC III (AC)
Communication
Communication interfaces	RS485; RS232
Monitoring	GPRS / Wi-Fi / Bluetooth / 4G / LAN (optional); string intelligent monitoring (optional)
Certifications
Certifications and standards	IEC/EN 61000-6-1/2/3/4; IEC/EN 62109-1; IEC/EN 62109-2
Grid codes	IEC 61727; IEC 62116; CEI 0-21; EN 50549; NRS 097; RD 140; UNE 217002; OVE-Richtlinie R25; G99; VDE-AR-N 4105