Growatt WIT 50-100K-US - Page 79

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Frequency accuracy
0.1Hz
THDv
3%
Unbalanced load
100% three-phase unbalanced
Overload capacity
≤110%，continuous;
110%～120%：10min
>120%，200ms
Efficiency
Max. battery
charge/discharge
efficiency
98.20%
98.20%
98.20%
98.20%
Protection devices
PV reverse polarity
protection
Yes
Yes
Yes
Yes
DC surge protection
Yes（Class II）
Yes（Class II）
Yes（Class II）
Yes（Class II）
Insulation resistance
monitoring
Yes
Yes
Yes
Yes
RCD detection
Yes
Yes
Yes
Yes
AC short-circuit
protection
Yes
Yes
Yes
Yes
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
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
265lb
265lb
265lb
265lb
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
250W
250W
250W
250W