Pentair TraceTek TTDM-128 Installation Instructions Manual page 3

Mounting the Enclosure
Install the enclosure using the four screws in the prepunched 8
mm (5/16-inch) mounting holes with centers as shown in Figure 3.
If plastic plugs are in the mounting holes, remove them. Make sure
the rubber elastomeric washers (provided in the shipping box) are
aligned to seal around the mounting screws to maintain the NEMA
12 and Ip54 ratings.
Making Enclosure Entries Using the Removable Gland plate
The removable gland plate br on the bottom edge of the enclosure
provides a location to feed wires into the enclosure (Figure 4).
The plate is attached with eight screws. Unscrew these to remove
the gland plate, then you can drill or punch holes in the gland
plate appropriate for your application. There is sufficient width for
up to five 1/2-inch or M20 holes. Remove all metal filings and dust
from the gland plate before remounting. Take care not to damage
the gasket on the gland plate. You must secure the gland plate
ground wire to the chassis ground lug after remounting the gland
plate.
connecting the power cable and Relays
TTdM-128 power Supply connection
• Open door of TTDM-128 enclosure.
• For 110/220 Vac power supply: select the appropriate voltage
using the voltage selector switch bo.
TTdM-128-24 V power Supply connection
Note: For proper operation of the TTDM-128-24 V, use a power
supply whose output is electrically isolated from the incoming
line power and ground.
• Each TTDM-128-24 V requires a separate isolated power supply.
TTdM-128 and TTdM-128-24 V power Wiring connection
• Pass the power cable through the gland plate adapter/bushing
into the enclosure.
• Connect the ground/earth wire to the ground/earth stud bq.
• The ground/earth stud is marked with this symbol:
Note: Proper grounding/earthing of the TTDM-128 enclosure is
important to avoid the possibility of electromagnetic interference.
• Remove the power cable plug from the socket bn on the power
supply board bl.
• Connect the power supply wires to the power cable plug. Use L2
for neutral, if present.
Note: The terminals can accept wires 10 AWG (4.7 sq. mm) or
smaller. We recommend 12 AWG (3.0 sq. mm) wires, with branch
circuit protection sized accordingly. Cable should have a tem-
perature rating of 65°C minimum.
• Insert the power cable plug back into the socket bn on the power
supply board bl.
THERMAL MANAGEMENT SOLUTIONS EN-TraceTekTTDM128-IM-H57341 03/13
Figure 3
20 mm
mounting hole
(0.79 in)
(four places)
8 mm (5/16 in)
200 mm
(7.87 in)
240 mm
(9.45 in)
Figure 4
110/220 Vac power supply
Do not
exceed
maximum
voltage
rating
24 V power supply
Do not
exceed
maximum
voltage
rating
300 mm
(11.81 in)
20 mm
(0.79 in)
261 mm
(10.26 in)
Attachment points
for motherboard
(four places)
Grounding wire to
attach to ground
lug in enclosure
terminal 62.
Gasket

Screws
Gland plate

Use L2
for neutral,
if present.

VAC IN



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