SMA WB 3000-21 Installation - Manual (Page 86)

13 Technical Data SMA Solar Technology AG
86 WB3-5TL-21-IA-en-10 Installation Manual
13.3 Protective Devices
13.4 Climatic Conditions
According to IEC 60721-3-4, installation type C, class 4K4H
According to IEC 60721-3-2, transport type E, class 2K3
DC reverse polarity protection Short-circuit diode
DC disconnection device Electronic Solar Switch
DC overvoltage protection Thermally monitored varistors
AC short-circuit current capability Current control
Grid monitoring SMA Grid Guard 3
Maximum permissible fuse protection for
WB 3000TL-21 25 A
Maximum permissible fuse protection for
WB 3600TL-21 32 A
Maximum permissible fuse protection for
WB 4000TL-21 32 A
Maximum permissible fuse protection for
WB 5000TL-21 32 A
Ground-fault monitoring for WB 3000TL-21 Insulation monitoring R
iso
> 625 k Ω
Ground-fault monitoring for WB 3600TL-21 Insulation monitoring R
iso
> 550 k Ω
Ground-fault monitoring for WB 4000TL-21 Insulation monitoring R
iso
> 500 k Ω
Ground-fault monitoring for WB 5000TL-21 Insulation monitoring R
iso
> 400 k Ω
All-pole sensitive residual-current monitoring unit Available
Extended temperature range ‒25°C to +60°C
Extended humidity range 0% to 100%
Extended air pressure range 79.5 kPa to106 kPa
Temperature range ‒25°C to +70°C