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1. Thermostat
2. X1 (auxiliary power supply)
3. X4 (customer connections)
4. X2 (internal connections)
5. X3 (internal connections)
6. EMC filter
Connecting the auxiliary voltage supply
The auxiliary voltage is supplied either by an
external transformer or an external
low-voltage power supply. In both cases,
insert the connection cable through the cable
gland (see Figure 22: Three-phase type SDR
controller connections on page 20) into the
three-phase type SDR controller and attach to
the corresponding terminals at terminal block
X1.
Refer to the wiring diagrams supplied with
the order specific drawings for terminal
numbers and terminal block location.
Optional provision for connectorized power
supply cables may be provided as shown in
Figure 22: Three-phase type SDR controller
connections on page 20.
Hazardous voltages.
Will cause death, serious injury and property damage.
Do not contact energized conductors.
De-energize and ground the equipment before working on or near high
voltage conductors.
Establishing high-voltage connection
The recloser switch unit is equipped with
terminal connectors to fasten cables or with
flat spade connectors, depending on the
configuration specified by the purchaser.
Commissioning
The equipment must be commissioned as
follows. The installation and commis-sioning
report (see page 32) serves as documentation
and a checklist.
Function and operational instructions
For functional test and operational
instructions for use with the type SDR three-
phase controller, refer to the vendor website
information in Annex A on page 38.
Only the Siemens type 7SR224 control and
protection relay option is illustrated in this
instruction manual.
1
2
3
4
5
Figure 25: Typical terminal block
arrangement (terminals for the type
7SR224 control and protection relay
illustrated)
6
21
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