iMars grid-tied solar inverters
Technical parameters
65
10 Technical parameters
Table 10-1Technical parameters
Model
Three-phase
BG12KTR
BG15KTR
BG17KTR
BG20KTR-M
BG20KTR
Input(DC)
Max. DC voltage (V)
1000
1000
1000
1000
1000
Starting voltage (V)
200
200
200
300
300
MPPT voltage range(V)
180 - 800
180 - 800
180 - 800
280-800
280-800
Rated DC input voltage range(V)
350 - 800
400 - 800
400 - 800
450-800
450-800
Number of MPPT/string per MPPT
2/2
2/3
Max. DC input power (W)
12500
15600
17500
20800
20800
Max. DC current (A) X
Number of MPPT
19x2
21x2
23×2
25X 2
25X 2
Isc PV
(
A
)
21x2
23.5x2
25.5×2
27X 2
27X 2
Maximum backflow current
(inverter backflow to PV array)
0A
0A
0A
0A
0A
DC switch
Optional
Output(A
C)
Max output power(W)
12000
15000
17000
20000
20000
Voltage(V)/ frequency(Hz) range
320~460Vac
、
50Hz(47~51.5Hz)
Maximum output current(A)
19.3
24.1
27.3
32
Maximum output fault current
250A @41.6ms
472A @11.04ms
AC inrush current
Less than 10 A
Less than 20 A
Maximum output overcurrent
protection(A)
38.2
47.7
54
63.3
Power factor
-0.80~+0.80(adjustable)
Harmonic distortion
< 3% (rated power
)
Output(A
C)
Cooling method
Air cooling
Maximum efficiency
98.20%
98.30%
98.30%
98.4%
98.4%
European efficiency
97.60%
97.80%
97.80%
98.0%
98.0%
MPPT efficiency
99.9%
Protection degree
IP65
Power consumption at night
< 1W
Isolation mode
Transformerless
Safety class
I
Overvoltage protection class
AC:III,PV:II
Inverter topology
Non-isolated
Pollution degree
3
Operation temperature
-25
℃
~+60
℃
,
(
Derate after 45
℃)
Relative humidity
4~100%, Condensation
Max. altitude(m)
≤2000
,
(Derate if the altitude
>
2000)
Display
3.5 inches’ LCD, support backlight display
System language
English, Chinese, German, Dutch
Communication
RS485 (standard),Ethernet, WiFi (optional)
DC terminal
BC03A/ BC03B
Noise dB(A)
≤55
Installation mode
Wall installation
Others
Grid standard
DIN VDE 0126-1-1
:
2013
,
VDE-AR-N 4105
:
2011
,
DIN VDE V 0124-100
:
2012
,
IEC 61727
(
IEC62116
),
AS/NZS 4777.2
:
2015
,
NB/T32004-2013
,
IEC 60068-2-1
:
2007
,
IEC 60068-2-2
:
2007
,
IEC 60068-2-14
:
2009
,
IEC 60068-2-30
:
2005
,
IEC 61683
:
1999
,
C10/11
:
2012
Safe certificate / EMC category
IEC 62109-1
:
2010
,
IEC 62109-2
:
2011
,
EN 61000-6-2: 2005 / EN 61000-6-3:2007/A1:2011
Protection
Input overvoltage protection, input overcurrent protection, DC isolation monitoring, DC monitoring, grounding fa ult current monitoring, grid
monitoring, island protection, short circuit protection, overheating protection etc.