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Details
Characteristics
TECHNICAL SHEET
MANUAL DE OPERACIÓN

Solar Inverter

ZGR SOLAR STR 20 / 40 / 50

ZGR SOLAR STR 20 / 40 / 50 THREE-PHASE STRING INVERTERS

ZGR STR 20 / 40 / 50 solar inverters offer high energy efficiency with a compact and
lightweight design.

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Characteristics

String inverters ZGR SOLAR STR are easy-to-use devices that have been designed to meet the needs of all solar power plants connected to the grid.
In an effort to improve the performance of solar plants, these inverters offer high energy efficiency, greater than 98%.
ZGR SOLAR STR inverters have an LCD display, to make it easier for the user to access the information of the inverter and its parameters.
This new range of string inverters offers a DC input voltage range between 480 to 800 Vdc and an IP 65 tightness rating.

TECHNICAL SHEET

Maximum Power Point Tracking (MPPT)
High efficiency, greater than 98%
Reduced harmonic distortion, THD <3%
Direct grid connection
Parallel connection without limitation
Anti-island protection with automatic disconnection
Local monitoring via LCD
Protection against • Reverse - polarity • Short-circuits • Overvoltages • Isolation faults
Compact and lightweight design, easy installation

TECHNICAL SHEET

TECHNICAL SPECIFICATIONS

Model	ZGR SOLAR STR 20	ZGR SOLAR STR 40	ZGR SOLAR STR 50

INPUT [DC]
Max. PV voltage	1000 V
MPP voltage range	250 - 950 V
MPP voltage range for nominal power	480 - 800 V
Nominal PV input voltage	620 V
Min. PV input voltage	250 V
No. of MPPT trackers	2	3	3
Max. Number of input connector per MPPT	2	4	4
Max. Current per MPPT	21 A	36 A	36 A
Max. Short-circuit current per MPPT	28 A	48 A	48 A
Max. Current DC	42 A	108 A	108 A

OUTPUT [AC]
Nominal AC output power	22 kW @30ºC; 20 kW @40ºC; 18 kW @50ºC	44 kW @30ºC; 40 kW @40ºC; 40 kW @50ºC	55 kW @30ºC; 50 kW @40ºC; 45 kW @50ºC
Max. AC apparent power	22 kVA	44 kVA	55 kVA
Max. AC Active Power (cosø=1)	22 kVA	44 kVA	55 kVA
Nominal AC voltage	400 V ± 20%
AC connection	3W + N + PE
AC grid frequency range	50 / 60 Hz (± 5 Hz)
Nominal output current	29 A	58 A	72 A
Max. output current	32 A	64 A	80 A
Adjustable power factor range	0,8 lagging/leading
THDi	<3%

EFFICIENCY
Eficiencia máxima	98 %	98,6 %	98,6 %
Eficiencia europea	97,5 %	98 %	98 %

PROTECTIONS
Protecciones	DC switch; Anti-islanding Protection; DC Reverse-polarity Protection; PV-array String Fault Monitoring; Overvoltage protection; Ground fault monitoring; AC Overcurrent Protection; AC short circuit protection

GENERAL CHARACTERISTICS
Topology	Transformerless
Cooling Method	Natural cooling	Smart forced air cooling	Smart forced air cooling
Operating Temperature Range	-25ºC - 60ºC
Protection class	IP 65
Ingress protection rating	Clase I
Noise emission	<40 dB	<60 dB	<60 dB
Operating Altitude	< 3000 m
Relative Humidity	0 a 95 % non-condesing
Dimensions (W x H x D)	715 x 553 x 228 mm	958 x 636 x 260 mm	958 x 636 x 260 mm
Weight	39 kg	68 kg	68 kg

COMUNICACIONES
Comunicaciones	RS485

COMPLIANCE
Certification & Standards	EN 62109-1: 2011 & EN 62109-2:2013 ; EN 61000-3-12:2012 ; EN 61000-6-2 & EN 61000-6-4 ; VDE 0126-1-1 ; RD 244/2019 & UNE 217001:2020 ; EN206007 & UNE 217002:2020 ; UE 2016/631:NTS 631 v2

MANUAL DE OPERACIÓN

Manual castellano str 20

Hybrid, robust and reliable solutions

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