Installation Manual

Eaton Corporation Page 3
2.2 Wiring
IMPORTANT!
• Be sure to follow all national, state, and local elec-
trical codes when making wiring connections.
• When connecting the wires from the SPD to
the electrical system, cut the wires as neces-
sary to keep them as short as possible.
• To maximize the SPD’s performance, twist
and bind the wires together to reduce the
impedance of the wire (one twist/inch).
• If the system utilizes an isolated ground, the
SPD’s ground wire must be connected to the
system’s isolated ground bus.
1. Locate the electrical system’s applicable wiring
diagram in Section 2.3. Reference this wiring
diagram as necessary in Steps 2, 3, and 4.
2. Connect the SPD’s ground wire (green) to the
system’s ground connection. Delta only.
3. Connect the SPD’s neutral wire (white) to the
system’s neutral connection (not required for
3-phase delta systems – 240D, 480D, and
600D).
4. Connect the SPD’s phase A, B, and C
wires (black) to the system’s corresponding
phase A, B, and C connections accord-
ing to applicable national, state, and local
electrical codes.
SPD
PHASE A
NEUTRAL
PHASE B
PHASE C
Phase C (BLK)
Phase B (BLK)
Phase A (BLK)
Neutral (WHT)
Grounding and
bonding per
national and local
electrical codes
3-Phase Wye
(208Y, 480Y)
600Y
PHASE A
PHASE B
NEUTRAL
SPD
Neutral (WHT)
Phase B (BLK)
Phase A (BLK)
Grounding and
bonding per
national and local
electrical codes
Split Phase
(240S)
SPD
PHASE A
GROUND
PHASE B
PHASE C
Phase C (BLK)
Phase B (BLK)
Phase A (BLK)
Ground (GRN)
3-Phase Delta
(240D, 480D)
600D
3.0 Operation
3.1 Power Up and System Checkout
Apply system power. The LED should light.
If the connected LED does not light, remove
power, check connections, and test again. If
the LED still does not light, contact your sup-
plier.
3.2 Routine Operation
After system power has been applied, the SPD
automatically begins to protect down-stream elec-
trical devices from damaging voltage transients.
With all phase voltages present, the LED indica-
tor reports the status of the protection elements
and is active when all of them are intact and
providing protection. Any loss of protection is
signaled when the LED extinguishes.
The device is not repairable and contains no
user serviceable parts. If the unit fails, as evi-
denced by the LED turning OFF, the unit must
be replaced. Please contact your distributor as
the SPD may be under warranty.
WARNING! SHOCK HAZARDS:
DO NOT use the Suppression Circuit Status
LEDs as an indication of the presence or ab-
sence of system phase voltages.
2.3 SPD Wiring Diagrams