Eaton SPC Max Series Installation Instructions Manual page 6

Instruction Booklet IB158002EN
Effective September 2023
Figure 5. Power Xpert SPD connector retaining clip
6. Unscrew the neutral and ground terminal blocks from the
enclosure base . Rotate the ground terminal block 180° and
mount the two terminal blocks in the mounting holes located
on the bottom left of the unit (see Figure 6).
Relocated
terminal
blocks
Figure 6. Neutral and ground terminal block relocated for top
entry wire installation
7. Cut #10 AWG neutral wire(s) to fit from the relocated neutral
terminal block to the individual SPD(s), keeping the wires as
short as possible .
8. Attach a #10 AWG ring terminal to one end of the new neutral
wire(s) and a #10 AWG ferrule to the other end .
9. Connect the ring terminal end of the new neutral wire(s) to the
SPD neutral connection and the ferrule end of the wire to the
relocated neutral block .
10. Tighten the neutral terminal block screws with a torque of
50 in-lb .
11. Tighten either SPD1 or SPD2 neutral connection with a torque of
36 in-lb, which is molded into the SPD plastic enclosure .
12. Up to a 1½ NPT conduit punch can be used to access the top of
the enclosure . Use the dimple located on the enclosure wall to
center the hole . Install proper conduit hub, NEMA 4 or NEMA 4X .
6
EATON www.eaton.com
SPC Max Series surge protective device
13. Optional Form C wiring—If using a remote monitoring Form C
relay, locate the dimples on the top or bottom of the enclosure
for centering the cut-out hole for conduit installation . Maximum
conduit size of ¾ NPT for Form C wires .
14. Mount SPD Max unit in desired location as close as possible to
equipment to be protected . Feed wire sizes #10–1/0 AWG into
the unit and terminate them per wiring diagram located on the
inside enclosure lid or the instruction manual .
15. Optional Form C relay—Install remote monitoring Form C relay
wiring, if needed, into only one SPD . If two SPDs are available,
either SPD can be used, but it's only necessary to connect the
Form C wires to one SPD device within the enclosure . For Power
Xpert SPD applications, secure Form C wires to phase wires
approximately one inch from where the phase wires exit the
SPD enclosure using a cable tie as shown in Figure 7 .
16. Swing hinged deadfront panels closed and reinstall the four
Torx screws to secure the deadfront panels .
17. Reattach all ribbon cable connectors, connector retaining clips
on Power Xpert SPD, and slide cable hold-down brackets back
into place and tighten screws to 5 lb-in .
18. Close and secure the seven enclosure lid latches .
Figure 7. Form C wires secured using cable ties
Installation instructions for