
Electrical equipment should only be installed, operated, serviced and maintained by qualified personnel.
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Hubbell Wiring Devices
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21
Operation
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
• Apply appropriate personal protective equipment (PPE) and follow safe
electrical work practices. See NFPA 70E.
• This equipment must only be installed and serviced by qualified electrical
personnel.
• Turn off all power supplying this equipment before working on or inside
equipment.
• Always use a properly rated voltage sensing device to confirm power is off.
• Replace all devices, doors and covers before turning on power to this
equipment.
• This equipment must be effectively grounded per all applicable codes. Use
an equipment-grounding conductor to connect this equipment to the power
system ground.
Failure to follow these instructions will result in death or serious injury.
LED Status Indicators
The SPD diagnostic display panel shows the status of each SpikeShield module
with diagnostically controlled green/red LEDs (see Figure 16). If a unit is
operating correctly, all of the phase LEDs will be illuminated green. To test the
integrity of the diagnostics for each phase, push the button below the phase
LEDs on the diagnostic display panel. The green LED will turn red and the alarm
will sound, if the alarm is enabled. Releasing the test button will complete the
test; the red LED will turn green and the alarm will shut off.
If an inoperable condition occurs on any phase, the audible alarm sounds and
the corresponding phase LED on the diagnostic display panel is illuminated red.
This indicates that the device needs service by qualified electrical personnel.
The audible alarm can be silenced, until a qualified person is able to evaluate
and service the SPD, by pressing the alarm enable/disable button. The alarm
will silence and the green alarm LED will not be lit. The red phase LED will
continue to be illuminated until the inoperative condition had been cleared.
On the SPD module (see Figure 14), if either LED is not lit, the module should be
replaced. If both green LEDs are not lit and the diagnostic display panel has
power, then power has been lost to that phase or the module should be replaced
(refer to Table 1 on page 6). Refer to the final equipment instruction bulletin for
SPD module disconnection and access instructions.
When power is applied to the SPD and one or more of the diagnostic display
panel LEDs are red, and one or more module LEDs are out, the appropriate
module should be replaced. Refer to “Maintenance and Troubleshooting” on
page 25 for proper troubleshooting.
Figure
14:
SpikeShield LEDs
Left green LED lit:
L-G suppression
is operating.
Left green LED not lit:
Loss of surge suppression
from L-G.
Right green LED not lit:
Loss of surge suppression from
L-N for MA(1, 3, 4, or 8)IMA_
L-L for
Right green LED lit:
Suppression is operating
L-N for MA(1, 3, 4, or 8)IMA_
L-L for MA(5, 6, or 9)IMA_ (Delta/HRG)
MA(5, 6, or 9)IMA_ (Delta/HRG)
DANGER
SpikeShield
®
Modular Panel Surge Protective Device (SPD)
OPERATION