Suitable Disconnection Device - Pylontech US5000 Series Operation Manual

NOTE
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Caution
1) For Australian market, an overcurrent and disconnection device that isolates
all live conductors (positive and negative) is required between the battery system
and the inverter
2) In Australia installations should be conducted in accordance with AS/
NZS 3000 and AS/NZS 5139.

5.7 Suitable disconnection device

It is recommended to have a disconnection device for protection between
battery system and inverter:
1) The rated voltage shall ≥60V DC. Do NOT use AC breaker.
2) The rated current shall match with system design:
shall consider:
the maximum DC current on inverter side.

the number of power cable: for instance, if only one pair of 4awg cable,

the rated current of breaker shall be 125A or smaller.
3) If using breaker, the type shall be type C (recommended) or type D.
The Icu required:
the maximum short circuit current for calculation of each module is 2500A.
for instance:
1~4 modules
5~8 modules
Icu of breaker
Must ≥10kA
Must ≥20kA
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