Battery and cable requirements
In order to utilize the full capacity of the Multi RS19 Solar, batteries with sufficient capacity and battery cables with sufficient cross section should be used. The use of undersized batteries or battery cables will lead to:
Reduction in system efficiency
Unwanted system alarms or shutdowns
Permanent damage to the system
The battery connection terminals on the Multi RS19 Solar are Amphenol SurLok Plus.
The appropriate 25mm2 plugs should be used to make the battery connections. The plugs should be crimped onto 25mm2 cable.
Amphenol SurLok Plus plugs
Connector Designation | Colour | Orientation | Amphenol part number |
|---|---|---|---|
Battery positive | Red | Right Angle | SLPPA25BSR |
Battery positive | Red | Straight | SLPIPA25BSR |
Battery negative | Black | Right Angle | SLPPA25BSB |
Battery negative | Black | Straight | SLPIPA25BSB |
Battery cable and fuse requirements
Cable length 0 - 2m | Cross sectional area: 25mm2 |
Recommended DC fuse | 125A |
Install a DC switch a main DC fuse in the system. Only install the main DC fuse after all of the necessary DC connections have been made.
Do not connect or disconnect the Amphenol connectors then the DC system is powered. Remove the main DC fuse before disconnecting the Amphenol connectors.
Warning
Consult the battery manufacturer recommendations to ensure the batteries can take the total charge current of the system. The decision on battery sizing should be made in consultation with your system designer.