Enatel DC System Manual
Page
13
of
26
Model: RWxxx
Version: 3.6
Lumberg IDC connectors (insulation displacement). Each terminal on the connector is
rated at 16Amps at 50°C.
To crimp the cable into the connector, simply insert the correct wire into the connector,
and squeeze the connector in a vice or with a small press. Vice grips can be used
provided a metal plate is used either side of the connection to protect the plastic. Once
the connector has been crimped, it cannot be reused, so take great care to make sure
that the correct wire and polarity colour is inserted before crimping. Additional spare
connectors are available from the rectifier supplier.
Figure 4: DC Connector
3.4
Temperature Compensation
Temperature Compensation Probes are available in different lengths. The end of the
Temperature Compensation Probe should be attached to a terminal on a battery (the lug
is isolated, so it doesn’t matter which terminal). Any excess cable should be neatly coiled.
As the current in the Temperature Compensation Probe is minimal, it does not matter if
the cable is longer than necessary (unlike the current carrying load and battery cables).
Caution
Do not reverse the polarity of the cables from the battery.
This will blow an internal protection fuse, requiring the
rectifier to be returned for servicing
Do not connect the Temperature Compensation Probe to the rectifier until
3.5
Multiple Rectifiers
The rectifiers may be operated in parallel to provide greater current capability and to
provide redundancy.
When rectifiers are connected in parallel (and load sharing), alarm outputs on the
rectifiers give the status of all the units. This means that you only need to connect one
alarm card to the alarm circuitry when the rectifiers are connected in parallel.
The load and battery cables should be wired in parallel to the rectifiers as per the diagram
in section 2.3. Each rectifier should be fitted with a Temperature Compensation Probe
connected to the same terminal on the same battery.
For load and alarm sharing, an alarm and control interface cable should be connected to
each parallel rectifier to ensure that all rectifiers load share automatically. When two or
DC Connector
4 Way Lumberg layout (viewed facing the front of the plug)
