Extron Electronics PS 123 User Manual
PS 123 Flexible Conduit Adapter Kit Instruction Guide
OUTPUTS
REDOVERLOAD
12 VDC TOTAL OUTPUT 3A
100-240 50/60Hz 1A MAX.
Remove Two Screws
IEC Connector
R
E
D
-
O
V
E
R
L
O
A
D
P/S
1
23
1
2
V
D
C
3
A
P
O
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E
R
S
U
P
P
L
Y
Remove three
screws on
each side.
Lift the cover
straight up.
The Flexible Conduit Adapter Kit includes the following parts:
• One EMT adaptor plate
• One 6-foot long electrical conduit
• Three 7.5 feet, 18-gauge spade connector power wires
• One UL rated zip tie wrap
• Three auxiliary crimp style spade connectors designed for 14- to 16-gauge wires
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The kit provides a convenient means to replace the IEC power cord of the Extron PS 123 12 VDC,
3 Amp power supply (part #60-814-01) with conduit, where required by local codes.
Make sure that the source device, the PS 123 power supply, and all output devices are turned off
and disconnected from the power source before you begin.
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UL requirements
The Underwriters Laboratories (UL) requirements listed below pertain to the installation of the
flexible conduit onto a PS 123 power supply.
• This unit is not to be used beyond its rated voltage range.
• This unit must be wired to a UL listed distribution box.
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• This unit must be installed in accordance with the National Electrical Code and with all local
If needed, Extron recommends using a UL-rated crimp tool to terminate the spade connectors.
One recommended choice is the Molex crimp tool (Molex part #19285-0008).
The circuit breaker used for this connection should be rated a minimum of 20 Amps.
Installation and service must be performed by a qualified electrician only.
A UL listed electrical distribution box is recommended for the termination of the conduit
opposite the PS 123 power supply. See "UL requirements", below.
The UL approved electrical distribution box is not included with either the PS 123 power
supply or the Flexible Conduit Adapter Kit; the installer is responsible for obtaining and
installing the box.
codes.
Installing the flexible conduit cable
Install the flexible conduit cable assembly to the PS 123 as follows:
1. Unplug the IEC power cord.
Figure 1 — Removing the EMT plate
PS 123 Flexible Conduit Adapter Kit • Instruction Guide
2. Remove and retain the two Phillips head
screws that secure the IEC plate (figure 1,
at left) to the PS 123 rear panel.
3. Remove and retain the six screws that connect
the top cover of the PS 123 to its bottom board
(figure 2, below).
4. Carefully lift the top cover up, taking care not to
remove it completely.
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Rough handling of the top cover
can tear the wiring that connects
the front panel LED.
Figure 2 — Removing the top
cover
68-1322-01 Rev. A
09 06
1
5. Use a standard screwdriver to loosen the screws holding the hot and
Tie Wrap
Neutral Terminal
Ground Wire Nut
Terminal Block
Conduit Nut
Hot Terminal
Metal Tab
Hot Terminal
Neutral Terminal
Ground Wire Nut
Terminal Block
Extron Electronics, USA
1230 South Lewis Street
Anaheim, CA 92805
Extron Electronics, Europe
Beeldschermweg 6C
3821 AH Amersfoort
Extron Electronics, Asia
135 Joo Seng Road, #04-01
PM Industrial Building
Singapore 368363
Extron Electronics, Japan
Kyodo Building
16 Ichibancho
Chiyoda-ku, Tokyo 102-0082
www.extron.com
© 2006 Extron Electronics. All rights reserved.
neutral
wires on the
side of the terminal block nearest the IEC plate (figure 3, below).
6. Unscrew the IEC connector ground wire from the ground wire nut on the bare metal bottom
of the PS 123 enclosure.
7. From the rear panel end, pull the IEC connector (figure 1) out of the enclosure.
8. Thread the 18-gauge power wires through the length of the electrical conduit tube.
Figure 3 — Terminal block and IEC wiring
9. Install the EMT adapter plate (figure 4) (with conduit attached) into the opening from which
you removed the IEC in step 7. Use the Phillips head screws (figure 1) that you removed in
step 2 to attach the EMT adapter plate.
10. Slide the conduit nut (figure 4) over the bundle of wires exiting the conduit and onto the
conduit itself inside the PS 123. Hand-tighten the nut.
11. Attach and screw down the hot and neutral wires exiting from the conduit to their
corresponding screws on the terminal block.
Figure 4 — Terminal block and conduit wiring
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12. Attach the ground wire from the conduit to the PS 123's bare metal plate bottom, securing it
13. Thread a tie wrap through the metal tab on the bare metal bottom of the PS 123, place all the
14. Ensure that the conduit nut from step 10 (figure 4, above) firmly secures the conduit EMT
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15. Use the six screws you removed in step 3 to secure the top cover of the PS 123 back onto its
PS 123 Flexible Conduit Adapter Kit • Instruction Guide
Ensure that you observe wire polarity. Figure 4 shows the location of the neutral and
hot poles on the mother board connector. The conduit wiring harness' neutral wire is
identified with a tag marked "N" (neutral).
by reattaching the ground wire nut.
wires within its cradle, and zip the tie wrap over the bundle of wires.
adapter plate to the power supply.
bottom board (figure 2).
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