PS 123, cont’d
WInstallation and service must be performed by a qualified electrician only.
CA UL listed electrical distribution box is recommended for the termination of the conduit opposite the PS 123 power supply. See "UL requirements," below.
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.
NThe 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.
•This unit must be installed in accordance with the National Electrical Code and with all local codes.
Installing the flexible conduit cable
Install the flexible conduit cable assembly to the PS 123 as follows:
1. | Unplug the IEC power cord. | |
2. | Remove and retain the two Phillips head screws that | |
| secure the EMT plate (figure 3, below) to the PS 123 rear | |
| panel. |
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| EMT Plate |
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| OUTPUTS | |
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| RED- |
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| OVERLOAD |
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| 12 VDC TOTAL OUTPUT 3A |
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| Remove two screws. |
Figure 3 — Removing the EMT plate | ||
3. | Remove and retain the six screws that connect the top | |
| cover of the PS 123 to its bottom board (figure 4, on the | |
| next page). |
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Lift the cover straight up.
Remove three screws on each side.
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| 123 | |
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12 |
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RED |
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Figure 4 — Removing the top cover
4. Carefully lift the top cover up, taking care not to remove it completely.
CRough handling of the top cover can tear the wiring that connects the front panel LED.
5. | Use the Phillips head end of an Extron Tweeker or a small | ||||||||||
| standard screwdriver to loosen the screws holding the hot | ||||||||||
| and neutral wires on the side of the terminal block nearest | ||||||||||
| the EMT plate opening (figure 5). | ||||||||||
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| Terminal Block | Hot Terminal |
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Neutral Terminal Ground Wire Nut
Figure 5 — Terminal block and IEC wiring
6. Unscrew the EMT plate ground wire from the ground wire nut on the bare metal bottom of the PS 123 enclosure.
PS 123 12 VDC, 3 Amp Power Supply • User's Guide | PS 123 12 VDC, 3 Amp Power Supply • User's Guide |
