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Multi RS

Battery and battery lead requirements

In order to utilize the full capacity of the Multi RS, 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 system.

See table for MINIMUM battery and cable requirements.

Battery capacity

Lead acid

200 Ah

Lithium

100 Ah

Recommended DC fuse

35 mm2 cable

125 A

70 mm2 cable

200 A

Minimum cross section (mm2) per + and - connection terminal

0 - 2 m

35 mm 2

2 - 5 m

70 mm 2

Warning

Consult battery manufacture recommendations to ensure the batteries can take the total charge current of the system. Decision on battery sizing should be made in consultation with your system designer.

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Always use a torque wrench with insulated box spanner in order to avoid shorting the battery and / or battery cables.

Maximum torque: 14 Nm

Avoid shorting the battery cables.

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Install a DC main switch and DC main fuse in the system and only place the DC main-fuse for the Multi RS after all necessary DC connections have been made.

To access the battery terminals, undo the two screws at the bottom of the enclosure and remove the cover to expose the wiring compartment.

  • The battery terminals for the Multi RS are located on the left-hand side of the wiring compartment.

  • Remove the nut, spring washer, and flat washer before attaching the cable terminal lug.

Warning

The bottom nut is soldered to the PCB; do not attempt to loosen it.

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  • It is important to place the terminal lug onto the stud first, followed by the flat washer, spring washer, and nut, in that order.

  • Ensure that each nut is tightened to a maximum torque of 14 Nm.

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