Installation and Operating Instructions V00
23
5.4 AC connection
5.4.1 Conditions for the AC connection
Cable Requirements
The grid connection is established using three conductors (L, N, and PE).
We recommend the following specifications for
stranded copper wire.
ASW3000-S/3680-S/4000-S/5000-S
Object Description
Value
A
External diameter
8 to 16 mm
B
Conductor cross-section
2.5 to 6 mm²
C
Stripping length of the insulated conductors
approx. 13 mm
D
Stripping length of the outer sheath of AC cable
approx. 53 mm
The PE conductor must be 2mm longer than the L and N conductors
Larger cross-sections should be used for longer cables.
Cable design
The conductor cross-section should be dimensioned to avoid power loss in cables
exceeding 1% of rated output power.
The higher grid impedance of the AC cable makes it easier to disconnect from the grid
due to excessive voltage at the feed-in point.
The maximum cable lengths depend on the conductor cross-section as follows:
Danger to life due to high voltages in the inverter
• Before establishing the electrical connection, ensure that the
miniature circuit-breaker is switched off and cannot be reactivated.
