Protective Devices
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DC reverse polarity protection |
Short-circuit diode |
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Input-side disconnection point |
Electronic Solar Switch, SUNCLIX DC connector |
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DC overvoltage protection |
Thermally monitored varistors |
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AC short-circuit current capability |
Current control |
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Grid monitoring |
SMA Grid Guard 3 |
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Maximum permissible fuse protection for SB 3000TL-21 |
25 A |
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Maximum permissible fuse protection for SB 3600TL-21 |
32 A |
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Maximum permissible fuse protection for SB 4000TL-21 |
32 A |
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Maximum permissible fuse protection for SB 5000TL-21 |
32 A |
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Ground-fault monitoring for SB 3000TL-21 |
Insulation monitoring: Riso > 625 kΩ |
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Ground-fault monitoring for SB 3600TL-21 |
Insulation monitoring: Riso > 550 kΩ |
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Ground-fault monitoring for SB 4000TL-21 |
Insulation monitoring: Riso > 500 kΩ |
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Ground-fault monitoring for SB 5000TL-21 |
Insulation monitoring: Riso > 400 kΩ |
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All-pole sensitive residual-current monitoring unit |
Available |