Auxiliary modules
AUXILIARY MODULES
External Auxiliary Power Supplies
4.
Ref.2003
· 159 ·
QC-PDS
HARDWARE
Function
A20 connector.
Three-phase power input
Male 4-pin connector located on top of the unit and identified as A20.
Female aerial plug connector with screw connection with tension sleeve
and lock and release lever supplied as an accessory. It is used to power the
auxiliary power supply with 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 power system.
The following table shows the main data of the aerial connector and the
wire to be connected:
Pinout
The pinout is printed on the connector as L1’-L2’-L3’-FE.
Installation
See section, 8.5.9 CONNECTING THE AUXILIARY POWER SUPPLY TO THE MAINS.
Connector data
Nr of poles 4
Gap (mm)
7.62
Flat screwdriver, size (mm) 0.6 x 3.5
Current (A) < 1
Min./max. cross-section (mm²) 1 / 2.5
Min./max. tightening torque (N·m)
0.5/0.6
Connection data
Length to strip (mm) 8
Cross-section of solid conductor (mm²)
1
Cross-section of flexible conductor (mm²)
1
Cross-section of flexible conductor, with a
ferrule and without a plastic sleeve (mm²)
1
Flexible conductor cross-section with a ferrule, with
plastic sleeve (mm²)
1
NOTE. FE (Functional Earth) is functional earth or service earth.
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