Replacing String Fuses; Safety; Preparation - Fronius DC Box 60/12 Bedienungsanleitung

Replacing String Fuses

Safety

Preparation

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Replacing
String Fuses
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WARNING! Operating the equipment incorrectly can cause
serious injury and damage. The following activities must only be
carried out by trained and qualified personnel. Follow the safety
rules in these operating instructions.
WARNING! An electrical shock can be fatal. Danger from DC
voltage from solar modules. Make sure that the input and out-
put sides in front of the device are not charged before conduc-
ting maintenance work.
Interrupt the connection to the AC supply lines using the inverter AC
disconnector
Disconnect solar module strings from the Fronius DC Box 60/12
Attach a clearly legible and easy-to-understand warning sign to pre-
vent anyone switching it on again or from reconnecting any open/
interrupted connections
Check to make sure that solar module strings are deenergized
Short circuit solar module strings
Remove the cover
Test the fuse holder at the terminal for continuity
NOTE! Only use fuses for solar modules that meet the proper
requirements for string fuses.
Fuse dimensions: Diameter 10.3 x 35 - 38 mm
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