Power supplies
80
2.
POWER SUPPLIES
Non-regenerative Power Supplies
· 46 ·
Ref.2003
· 46 ·
QC-PDS
HARDWARE
A20 connector.
Power input to the auxiliary power supply
Female 4-pin connector located on top of the unit and identified as A20.
The aerial male plug-in connector has screw-on connection, a «lock and
release» lever and is supplied as an accessory. It is used to power the
auxiliary power supply with three-phase line voltages between 400 (1-10
%) V AC and 480 (1+10 %) V AC and, in this way internally generate the
+24 V DC to power the control circuits of the system equipment.
The following table shows the main data of the aerial plug-in connector and
the wire to be connected:
Pinout
The pinout is labeled on the connector as L1’/L2’/L3’/FE.
Installation
See section, 8.5.1 CONNECTING THE MAIN POWER SUPPLY TO THE MAINS
NOTE. Only available at the QC-PS-025 model.
Connector data
Nr of poles 4
Gap (mm)
7.62
Flat screwdriver, size (mm) 0.6 x 3.5
Max. current (A) 0.5
Min. cross-section (mm²) 1
Min./max. tightening torque (N·m) 0.5/0.6
Connection data
Length to strip (mm) 8
Min./max. cross-section of solid conductor (mm²) 1/2.5
Min./max. cross-section of flexible conductor (mm²) 1/2.5
Min./max. cross-section of flexible conductor, with
a ferrule and without a plastic sleeve (mm²)
1/2.5
Min./max. cross-section of flexible conductor, with
a ferrule and with a plastic sleeve (mm²)
1/2.5
NOTE. FE (Functional Earth) is functional earth or service earth.
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