SMA IFCON Inline-Fuse-Connector-Set16 - Manual (Page 19)

8 Maintenance of Inline Fuse Connectors
Danger to life due to electric arc
An electric arc may occur when plugging or removing the DC connectors or the inline fuse
connectors under load and in case of a reverse-poled connection of the DC connectors. Electric
arcs can result in death or serious injury.
• Ensure the correct polarity of the strings before connection.
• Plug or remove DC connectors and inline fuse connectors only under load-free conditions.
• Disconnect the DC sub-distribution (see the DC sub-distribution manual).
• Wear suitable personal protective equipment.
Damage to the inline fuse connectors due the use of contact cleaner of other cleaning
agents
Some contact cleaners or other cleaning agents may contain substances that decompose the
plastic of the inline fuse connectors.
• Do not use contact cleaners or other cleaning agents for cleaning the inline fuse connectors.
Procedure:
1. Disconnect the DC sub-distribution (see the DC sub-distribution manual).
2. Check whether the inline fuse connectors are deformed.
If the inline fuse connectors are deformed, contact the Service (see Section 10, page 20).
9 Technical Data
String fuse
Nominal current strength of string fuses 6 A
DC
/ 8 A
DC
/ 10 A
DC
/12 A
DC
/ 15 A
DC
/
20 A
DC
/ 25 A
DC
/ 30 A
DC
Fuse characteristics gPV
Size of inline fuse connector 1,000 V
DC
26.4 mm x 175.0 mm
Size of inline fuse connector 1,500 V
DC
26.4 mm x 220.0 mm
30.0 mm x 220.0 mm*
Maximum rated current per fuse 0.55 x I
nom
fuse
Temperature range ‒40°C to +55°C
Maximum altitude above MSL** 4,000 m
* 20 A, 25 A, 30 A with spacer
** For installation altitudes above 2,000 m, an additional reduction factor of 0.5% for each additional
100 m must be taken into account when rating the fuses (see the Technical Information "IFCON Inline
Fuse Connector Set16").
8 Maintenance of Inline Fuse Connectors SMA Solar Technology AG
Installation Manual 19 InlineFuse-IA-xx-10
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