Eaton.com/bussmannseries 9
BSPD SPDs for switchgear and power distribution panels Instruction Sheet IS10207 Rev 3
Effective July 2015
3.2.4 SPD display rotation
Regardless of any configuration’s mounting position, best display
panel visibility can be accomplished by rotating the display 180
degrees, 90 degrees clockwise or 90 degrees counterclockwise.
NEMA 1 enclosures
1. Follow all prescribed safety procedures and deenergize the
electrical system to remove power from the unit.
2. Remove and discard the perforated overlay material at the two
opposite corners of the display panel.
3. Remove the two phillips head screws that hold the display panel
onto the SPD enclosure.
4. Being careful not to overstress the display panel’s ribbon cable,
rotate the display to the desired position.
5. Place the display back onto the SPD enclosure. Again, be careful
not to overstress or crimp the ribbon cable.
6. Replacethetwophillipsheadscrewsandtightento1.35N•m
(12 lb-in).
7. Follow all prescribed safety procedures to restore power to the
electrical system.
Table 2. Troubleshooting Chart
Condition Probable Cause Solution
Green LEDs ON (1 per phase) and one Green
LED ON for Neutral/Ground Protection
Normal operation N/A
Audible Alarm OFF, Form C (N.C.) contact in the
CLOSED state
Normal operation N/A
Phase Green LED is OFF, same Phase Red LED
is ON, Audible Alarm is ON
Phase protection compromised or lost
Extended Temporary Overvoltage (TOV)
Significant surge event
Replace SPD
Check electrical system for TOV sources, correct, replace SPD
Replace SPD
Neutral/Ground Green LED is OFF,
Neutral/Ground Red LED is ON,
Audible Alarm is ON (for models with Neutral
connections)
Neutral/Ground protection is compromised or lost
Significant surge event
Replace SPD
Replace SPD
All Phase Green LEDs OFF, all phase RED LEDs
ON, Audible Alarm is ON
All phase protection is compromised or lost
SPD rated voltage is less than system voltage
Extended Temporary Overvoltage (TOV)
Significant surge event
Replace SPD
Replace SPD with correct voltage model
Check electrical system for TOV sources, correct, replace SPD
Replace SPD
One of the display panel Red LEDs is ON.
Audible Alarm is OFF
Audible Alarm Silence button has been depressed
and Alarm is silenced
Normal operation
If power is cycled and a fault condition still exists, the Audible
Alarm will reactivate
All Green and Red LEDs are OFF, LCD display (on
Surge Counter models) is OFF
SPD is not connected to a an energized system
Power is OFF on two phases
Check system voltage at SPD connection
Check SPD connections
NEMA 4X Enclosures
1. Follow all prescribed safety procedures and deenergize the
electrical system to remove power from the unit.
2. Open the enclosure’s door.
3. Remove and discard the perforated overlay material at the two
opposite corners of the display panel.
4. Remove the two phillips head screws that hold the display panel
onto the SPD deadfront.
5. Being careful not to overstress the display panel’s ribbon cable,
rotate the display to the desired position.
6. Place the display back onto the SPD deadfront. Again, be careful
not to overstress or crimp the ribbon cable.
7. Replacethetwophillipsheadscrewsandtightento1.35N•m
(12 lb-in).
8. Close and secure the enclosure’s door so that its NEMA 4X
rating is reestablished.
9. Follow all prescribed safety procedures to restore power to the
electrical system.
4.0 Troubleshooting
Many SPD failures result from improper installation. Once the SPD
is properly installed, it is a highly reliable unit. If the SPD does
not function properly, first confirm that the SPD is correct for the
system voltage and type (Wye/Delta) and is properly installed (See
Section 2,
Installation
).
If the SPD malfunctions after it has been routinely operating, refer to
Table 2,
Troubleshooting Chart
. This troubleshooting chart lists con-
ditions, probable causes and solutions. Further assistance may be
obtained by calling our Application Engineering Team between 7:00
a.m. and 5:00 p.m. Central Time, at 1-855-287-7626 or sending an
e-mail to fusetech@eaton.com.
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