Growatt WIT 50-100K-US - Page 95

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protection
AC surge protection
Yes（Class II）
Yes（Class II）
Yes（Class II）
Yes（Class II）
Ground fault
monitoring
Yes
Yes
Yes
Yes
Grid monitoring
Yes
Yes
Yes
Yes
String monitoring
Yes
Yes
Yes
Yes
Anti-PID function
Optional
Optional
Optional
Optional
AFCI protection
Optional
Optional
Optional
Optional
Display and
communication
Display
OLED+LED/APP
USB
Yes
Yes
Yes
Yes
RS485
Yes
Yes
Yes
Yes
4G
Optional
Optional
Optional
Optional
WiFi
Optional
Optional
Optional
Optional
General data
Dimensions (W /H /
D) in mm
53.2*33.5*20.1(in）
Weight
338lb
338lb
353lb
353lb
Operating
temperature range
–30°C ... +60°C (> 50°C, derating)
Noise emission
(typical)
≤53dB(A)
≤53dB(A)
≤65dB(A)
≤65dB(A)
Relative humidity
0~100%
Altitude
4000m
4000m
4000m
4000m
Nighttime power
consumption
20W
20W
20W
20W
Standby power
consumption
250W
250W
250W
250W
Topology
Transformerless
Transformerless
Transformerless
Transformerless
Cooling
Fan cool
Fan cool
Fan cool
Fan cool
Protection degree
IP66
IP66
IP66
IP66
Warranty
5/10 years
(Optional)
5/10 years
(Optional)
5/10 years
(Optional)
5/10 years
(Optional)
Standard compliance
Safety
UL 1741:2021, UL 1741 SA/SB:2020, CSAC22.2 NO107.1-2016
EMC
FCC Part 15
Grid connection
standards
IEEE 1547:2018, IEEE1547.1:2020, HECO Rule 14