SMA IFCON Inline-Fuse-Connector-Set16 - Manual (Page 16)

3 Scope of Delivery
Check the scope of delivery for completeness and any externally visible damage. Contact your
distributor if the scope of delivery is incomplete or damaged.
Figure 2 : Components included in the scope of delivery
Position Quantity Designation
A 16 Inline fuse connector
B 1 Installation Manual
4 Fuse Rating
The inline fuse connectors can be used in bundles underneath the SMA String-Monitor without
additional derating at ambient temperatures up to +55°C. When selecting the correct nominal fuse
values (I
nom
), the reduction factor 0.55 must refer to the short-circuit current of the connected PV
array in standard test conditions (ISC_STC).
The following applies:
ISC_STC ≤ I
nom
x reduction factor or I
nom
≥ ISC_STC/reduction factor
The reduction factor 0.55 applies for a maximum irradiation of 1,200 W/m 2 (hourly average value
of the horizontal global radiation). If even higher irradiation is to be expected, the reduction factor
must be linearly adapted downwards, based on 1,200 W/m
2 .
Fuse Rating for Installation Altitudes up to 2,000 m
When rating the fuses, the following factors for installation altitudes up to 2,000 m must be taken
into account:
• Ambient temperature: ‒40°C to +55°C
• Maximum rated current per fuse: 0.55 x I
nom fuse
• Maximum rated current per measuring channel of the device
• Maximum current for the device
The reverse-current resistance of the PV modules must be taken into account for fuse rating.
Supplementary Reduction Factor for Installation Altitudes above 2,000 m
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.
For further information, refer to the Technical Information "IFCON Inline Fuse Connector Set16".
3 Scope of Delivery SMA Solar Technology AG
Installation Manual InlineFuse-IA-xx-10 16
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