Eaton SPD Series for Mounting External to Electrical Distribution Equipment Installation Manual IM01005031E—Rev 09 5
2. Layout the four enclosure mounting holes using the enclosure dimensions provided in Figures Figure 3,
Figure 4, Figure 5, Figure 6 and Figure 7 . Drill the appropriate holes per the product dimensions.
NNOOTTEE NEMA 1 enclosures require a #10 fastener and NEMA 4 and 4X enclosures require a 1/4
inch fastener.
3. Determine the correct length and install metal conduit onto the SPD. NEMA 1 SPDs have a 3/4 inch trade
size chase nipple and NEMA 4 and NEMA 4X SPDs have 3/4 inch trade size hubs. Route all phase, neutral
(where applicable), ground and Form C (where applicable) wires through the conduit.
4. Determine the hole location on the receiving electrical enclosure and either remove the knock-out provided
or drill the appropriate size hole at this location. Route the SPD wires through the enclosure hole and
mount the SPD enclosure.
5. Select the correct wiring diagram for the SPD you are installing. You must refer to this diagram while
wiring the SPD. See Figure 10- Figure 14. SPD Series type 1 and type 2 units do not require over current
protection devices, fuses or circuit breakers to operate correctly. All local and national electric codes must
be followed during installation and these codes may require protection of the conductors leading to the
SPD unit.
6. Determine the wire length required to make the SPD phase connections and cut the wires to the
appropriate length. (To maximize SPD performance, wire length should be as short as possible). Connect
the phase wires.
NNOOTTEE For wire lengths longer than 4 inches, phase wires should be twisted once for each 4
inches of wire length to maximize SPD performance.
7. Determine the wire length for the ground and neutral (where applicable) wires and cut these wires as
needed. Again, keep these wires as short as possible to maximize SPD performance.
8. Standard, Standard with Surge Counter, and Power Xpert SPD provide a connector for form C relay
contacts. This connection can be used for remote monitoring of the SPD. The form C contacts are rated at
150 Vac @ 0.46 A or 30 Vdc @ 1 A. Wire the remote monitoring connections per the form C wiring diagram
in Figure 9. Follow all NEC, CEC, state and local electrical codes when making these connections.
9. Power Xpert SPD includes an Ethernet port located on the side of the enclosure to allow the user to
connect the SPD to either a laptop or a network connection using a cat 5e cable (not provided).
NNOOTTEE To maintain a NEMA 4 enclosure rating when connecting an Ethernet cable to the
enclosure install a Conec RJ45-IP67 plug kit p/n: 17-10001 to the enclosure as shown in
Figures Figure 3- Figure 7.
Installation
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