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AC Power Connection
The SPD is installed in parallel with the incoming phase conductors.
It is recommended to connect the SPD to a 60A circuit breaker. This allows for
servicing of the SPD without shutting power off at the panel main breaker.
Route all SPD conductors taking care to avoiding sharp bends and keeping all leads
as short as possible, not exceeding five feet (5').
To ensure optimum SPD performance, verify that all electrical connections are clean.
Connect the phase and neutral wires to the terminals marked Phase 1, Phase 2,
Phase 3, and Neutral.
Connect the green safety ground wire (building ground system) to the Safety Ground
lug.
Tighten all connections to the recommended torque value.
Remote Alarm Connection
The SPD offers one set of dry contacts for remote alarm monitoring. These screw
terminal connections are located on the PC board as shown on Pages 8 or 10. The
three connections are labeled NC (Normally Closed), NO (Normally Open) and C
(Common).
Remote Alarm Contact Maximum Ratings:
125 Vdc / 0.24 A
125 Vac / 0.5 A
30 Vdc / 2.0 A
Final Check
Apply AC power to the SPD.
The SPD TVSS Status LED should be illuminated green.
If the TVSS Status LED is red or not illuminated, contact LEA International's
technical support at 800.882.9110.
If the Alarm Disabled LED is red, press the audible alarm Enable button to Enable
the audible alarm. The Alarm Disabled LED will turn dark
5
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