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INSTALLATION
Common Problems to Avoid:
• Confirm System voltage to SPD voltage (120V SPD will fail instantly on 240V, 277V, etc.).
• Locate SPD close so leads are short & straight as possible (or will seriously hurt performance).
• Make sure N-G or XO bonding meets NEC
• Energize SPD AFTER system is stabilized & checked (inadvertent system problem may fail SPD).
• SPDs are regulated by NEC
• Never Hi-Pot test any SPD (will prematurely fail SPD).
• Do not install XDS through bottom of a NEMA 3R panel. (Dripping water will prematurely fail the SPD).
Pre-Plan your installation. You will need to accomplish the following:
• Meet all National and Local codes (NEC
• Mount SPD as close to panel or equipment as possible to keep leads short.
• Ensure leads are as short and straight as possible, including neutral and ground. Consider a
breaker position that is closest to the SPD and the panel's neutral & ground.
• Suggested breaker and conductor size is 50A-30A with 8 AWG.
• Make sure system is grounded per NEC
1.
Use a voltmeter to check all voltages to ensure correct SPD.
2.
If unit has Flush Mount option refer to Flush Mount Installation Instructions following.
3.
If SPD has Dry Contact pre-plan its installation.
4.
Remove power for panel. Confirm panel is deenergized.
5.
Identify breaker location and SPD location.
6.
Remove an appropriately sized knockout from panel.
7.
Mount SPD, use appropriate weatherproofing equipment as needed.
Connect conductors as appropriate – short and straight as possible (Note that Hi-Legs are Phase B).
8.
Label or mark conductors as appropriate (neutral: white, ground: green, energized: black, hi-leg: orange).
9.
10. Make sure system is bonded per NEC
(N-G bonding not per NEC
11. Energize and confirm proper operation of indicators and/or options.
A sealing O-ring is provided. SPD can be chase-nipple mounted (nut is provided).
Note that any conduits must be installed correctly.
Figure 4
CONDUIT INSTALLATION
INCORRECT INSTALLATIONS
POOR
ENGAGEMENT
Conduit needs
to be threaded
in farther
6
(or will prematurely fail SPD).
®
Article 285 and UL 1449.
®
Article 285 addresses SPDs).
®
and clear of faults before energizing SPD.
®
and is clear of hazards or faults before energizing
®
will fail SPDs: #1 cause of SPD failures).
®
CORRECT
INSTALLATION
Threaded 6
Full Turns
OVERTIGHTENED
Stresses box,
ONLY
6 full turns
required
Figure 5
TYPICAL PANEL
INSTALLATION
To Protected Loads
A
B
C
BREAKER
N
G
Outdoor installation requires appropriate weather
sealing at nipple (o-ring, sealing conduit, etc.)
• Use closest
breaker to SPD
• Locate SPD
close to intended
breaker
• Keep Leads Short
as Possible
• Avoid Sharp
Bends
Rotate XD such
that LED indicator is
most visible
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