Instruction Manual
IM01005031E - Rev.6
Effective January 2019
Eaton
9
Eaton SPD Series for Mounting External
to Electrical Distribution Equipment
Figure 13. Wiring - Single Phase Units (230 L)
Figure 14. Wiring - Single Phase Units (240S) for 120V
Single Phase Applications
3.0 Operating Features
3.1 General
The Eaton SPD Series comes in three feature packages: Basic,
Standard, and Standard with Surge Counter. The operating spe-
cifics of each feature package are described below.
The Eaton SPD Series requires no operator involvement, other
than to monitor the display panel to determine status of the
SPD.
After system power is applied, the SPD automatically begins
protecting downstream electrical equipment from voltage tran-
sients.
Some SPD units have a Form C relay contact that allows for the
remote indication of SPD status. Form C contact wires are per-
manently connected to the SPD.
3.2 Displays and Indicators
All Eaton SPD Series units (Basic, Standard, and Standard With
Surge Counter) use a display panel to indicate system status.
The display panel is slightly different for each feature package.
Each display has both green and red light emitting diodes
(LEDs) to indicate the status of the protection on each phase.
Green indicates the phase is fully protected. Red indicates a
loss of protection. Wye, Split Phase and High-Leg Delta units
have an additional set of green/red LEDs to indicate status of
Neutral/Ground protection.
When the LEDs turn red, an audible alarm will also sound on
units equipped with an audible alarm.
Specific operating conditions displayed for each Eaton SPD
Series Feature Package are described below.
3.2.1 Basic Feature Package
The Eaton SPD Basic Feature Package display is shown in
Figure 15.
Figure 15. Basic Feature Package Display
The Basic Feature Package has the following features:
•
Green LEDs: Illumination indicates the phase is fully pro-
tected, and operating normally, with all protection active and
available. Green LEDs also indicate Neutral to Ground protec-
tion on units with a Neutral wire. Green LEDs do not indicate
on/off status of power.
•
Red LEDs: Illumination indicates a loss of protection, and
that one or more protective devices are now inactive and
unavailable for that Phase. Red LEDs also indicate Neutral to
Ground protection on units with a Neutral wire. Red LEDs do
not indicate on/off status of power.
