Assembling the DC Connectors
Qualified person
DANGER
Danger to life due to electric shock when live components or DC cables are touched
The DC cables connected to a battery may be live. Touching live DC cables results in death or serious injury due to electric shock.
- Disconnect the product and battery from voltage sources and make sure it cannot be reconnected before working on the device.
- Observe all safety information of the battery manufacturer.
- Do not touch non-insulated parts or cables.
- Do not disconnect the DC connectors under load.
- Wear suitable personal protective equipment for all work on the product.
The battery connection cables must be fitted with the supplied DC connectors. Assemble the DC connectors as described in the following. Be sure to observe the correct polarity. The DC connectors are marked with the symbols "Battery (+)" and "Battery (−)".

Negative (A) and positive (B) DC connectors
Cable requirements:
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Cable type: PV1-F, UL-ZKLA, USE2
External diameter: 5.5 mm to 8 mm
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Conductor cross-section: 2.5 mm² to 6 mm²
Qty single wires: minimum 7
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Nominal voltage: minimum 1000 V
Using bootlace ferrules is not allowed.
Procedure:
- Strip 12 mm of the cable insulation.
- Insert the stripped cable into the DC connector up to the stop. When doing so, ensure that the stripped cable and the DC connector are of the same polarity.
- Press the clamping bracket down until it audibly snaps into place.
- The stranded wire can be seen inside the clamping bracket chamber.
- If the stranded wire is not visible in the chamber, the cable is not correctly inserted and the connector must be reassembled. To do this, the cable must be removed from the connector.
Release the clamping bracket. To do so, insert a screwdriver (blade width: 3.5 mm) into the clamping bracket and pry the clamping bracket open.
Remove the cable and go back to step 2.
- Push the swivel nut up to the thread and tighten (torque: 2 Nm).




