10
Procedure
Proceed as follows to connect the battery cables:
Use an insulated box spanner in order to avoid shorting the battery.
Avoid shorting the battery cables.
Connect battery cables to the Multi and battery, see appendix A.
Reverse polarity connection will cause damage to the product. (Safety fuse inside the Multi
can be damaged).
Use PZ 2 screwdriver for Multi 500/800VA and 24V/48V 1200VA.
Use Flatscrewdriver 6.5mm for Multi 12V 1200VA.
Internal DC Fuses
All servicing must be undertaken by qualified personnel.
4.3 Connection of the AC cabling
The Multi is provided with a ground relay (relay H, see appendix B) that automatically
connects the Neutral output to the chassis if no external AC supply is available. If an
external AC supply is provided, the ground relay H will open before the input safety relay
closes. This ensures the correct operation of an earth leakage circuit breaker that is
connected to the output.
- In a fixed installation, uninterruptable grounding can be secured by means of the grounding
wire of the AC input. Otherwise the casing must be grounded.
- In a mobile installation, interrupting the shore connection will simultaneously disconnect the
grounding connection. In that case, the casing must be connected to the chassis (of the
vehicle) or to the hull or grounding plate (of the boat).
- In case of a boat, direct connection to the shore ground is not recommended because of
potential galvanic corrosion. The solution to this is using an isolation transformer.
The mains input & output terminal connector can be found on the bottom of the Multi, see
appendix A. The shore or mains cable must be connected to the connector with a three-wire
cable. Use a three-wire cable with a flexible core and a cross section of at least 1.5mm².
Automotive Bolt-Down Fuse
This is a Safety Class I product (supplied with a protective grounding terminal).
Uninterruptible protective grounding must be provided at the AC input
and/or output terminals and/or chassis grounding point located externally
on the product.
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