Fronius IG 300 Manuel d'utilisateur télécharger pdf (Page 62)

Replacing fuses

Criteria for selecting fuses:

1. I

= 20 A

2. U

= 600 V DC and AC

3. Fuse dimensions: 10.3 x 35 - 38 mm

Explanation:

: Nominal current rating of fuse

: Nominal voltage rating of fuse

1. Undo two screws on each of the two bottom-most power modules

2. Remove these two power modules

NOTE! When replacing defective fuses, make sure that new fuses comply with

the criteria for fuse selection.

Important! Each power module has both an AC fuse (F4.x) and a DC fuse (F3.x). The

overview circuit diagram shows how fuses are assigned to the appropriate power modu-

les.

WARNING! Danger due to mains voltage and DC voltage from solar modules.

The connection area should only ever be opened by an authorised electrical

engineer, and only when the power is disconnected.

Replacing fuses

F4.1

F4.4

F4.7

F4.10

F4.13

F4.2

F4.5

F4.8

F4.11

F4.14

F4.0

F4.3

F4.6

F4.9

F4.12

F3.0

F3.1

F3.2

F3.3

F3.5

F3.6

F3.7

F3.4

F3.8

F3.9

F3.10

F3.11

F3.12

F3.13

F3.14

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Fronius IG 300 Manuel d'utilisateur Page 62

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