Instruction Manual
IM01005031E - Rev.6
Effective January 2019
Eaton
3
Eaton SPD Series for Mounting External
to Electrical Distribution Equipment
1.5 Equipment Testing
WARNING
CONDUCTING DIELECTRIC, MEGGER, OR HI-POTENTIAL TESTING
WITH THE SPD INSTALLED WILL CAUSE INTERNAL DAMAGE TO THE
SPD. THE SPD WILL ALSO CAUSE THE TEST TO FAIL.
Every Eaton SPD Series unit is tested at the factory for dielec-
tric breakdown. No further SPD testing is required for installa-
tion.
If you desire to test distribution equipment by performing
dielectric, megger, or hi-potential tests, any installed SPD
must
be disconnected from the power distribution system to prevent
damage to the unit.
Follow this procedure to safely disconnect the SPD:
1. For SPDs connected to a circuit breaker or fuse:
a. 3-wire delta SPDs: Turn off the circuit breaker or remove
the fuses from the fuse holder to isolate the SPD.
b. Wye and Split phase SPDs: Turn off the circuit breaker or
remove the fuses from the fuse holder to isolate the SPD
and remove the Neutral connection on Wye connected
SPDs.
2.0 Installation
WARNING
INSTALLING AN SPD THAT IS IMPROPERLY RATED FOR THE ELECTRI-
CAL SYSTEM VOLTAGE COULD CREATE A POTENTIALLY HAZARDOUS
CONDITION, RESULTING IN INJURY OR EQUIPMENT DAMAGE.
2.1 Preparation for Installation
CAUTION
EATON SPD SERIES PRODUCTS MUST BE INSTALLED OR REPLACED
BY A QUALIFIED ELECTRICIAN TO AVOID INJURY OR EQUIPMENT
DAMAGE.
Before installing an Eaton SPD Series unit, do the following:
•
Verify that the area is clear of any dirt, debris or clutter that
may hamper the installation process.
•
Verify that there is enough space to install the SPD. See
Section 2.3, "Installation Procedures" for dimensions.
•
Confirm that all tools and equipment needed for the installa-
tion are available.
•
Confirm that the system voltage and wiring configuration is
the same as the SPD you are installing. Check the voltage
rating label on the side of the SPD.
WARNING
TURN OFF THE POWER SUPPLY BEFORE WORKING IN ANY ELECTRI-
CAL CABINET OR ON ANY CIRCUIT BREAKER PANEL. FAILURE TO DO
SO COULD RESULT IN INJURY OR DEATH FROM ELECTRICAL SHOCK.
NOTICE
A POOR GROUND, OR GROUNDING/BONDING VIOLATIONS, COULD
PREVENT THE SPD FROM PERFORMING AS SPECIFIED.
DO NOT USE THE SPD TO CARRY OR PASS THROUGH GROUND TO
OTHER DEVICES OR LEADS. DAMAGE TO THE EQUIPMENT MAY
RESULT.
•
Check the facility grounding system. All grounding, bonding,
and earthing must meet the NEC and any other national, state
and local electrical codes.
2.2 Installation Locations
Eaton's SPD Series can be installed next to, above, or below any
existing electrical enclosure.
The ideal mounting location for the Eaton SPD Series is as close
as possible to the electrical enclosure. The Eaton SPD Series
should be mounted in such a way as to minimize any sharp
bends in the wiring conduit.
2.3 Installation Procedures
1. Before mounting the SPD first determine the ideal location
and ensure that the mounting surface is sufficient to sup-
port the weight of the SPD (See Figures 2, 3, 4, 5, and 6 on
pages 4, 5, and 6 for model weights). The SPD should be
mounted as close a possible to the electrical enclosure and
as close as possible to the wiring connection point within the
enclosure. This will ensure a minimum wire length and maxi-
mum SPD performance.
2. Lay out the four enclosure mounting holes using the enclo-
sure dimensions provided in Figures 2, 3, 4, 5 and 6 on
pages 4, 5 and 6. Drill the appropriate holes per the product
dimensions. Note: 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 nip-
ple 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 enclo-
sure 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 install-
ing. You must refer to this diagram while wiring the SPD. See
Figures 9 - 14. SPD Series Type 1 and Type 2 units do not
require over current protection devices, fuses or circuit break-
ers 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.
otee:
N
For wire lengths longer than 4 inches, Phase wires should
be twisted once for each 4 inches of wire length to maximize SPD
performance.