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V4.1
INSTALLATION
Mounting Your New Phase Perfect
Proper installation of the unit is important to the performance and normal operating life of
the unit. The unit should be installed in a location free from:
• Corrosive gases or liquids
• Excessive vibration
• Airborne metallic particles
Mount the unit to a solid, non-flammable surface capable of bearing the weight using the
mounting brackets provided with the unit. Model weights are found in Table 9 – Table 14.
Mounting Bracket Installation
For shipping purposes, mounting brackets may be installed upside down, or shipped
separately in a bag. If the mounting brackets are not installed in an upright position,
remove the mounting screws, turn to an upright position, and then fasten the screws tightly.
NEMA 3R Rain Hoods
Phase Perfect phase converters can be ordered in NEMA 1 indoor or NEMA 3R outdoor
rated enclosures. Exterior openings on the top and sides of enclosure must be covered by
a rain hood to be NEMA 3R outdoor rated. If the unit is being installed outdoors, install the
supplied rain hood before operation. Installing products outdoors without the proper rain
hood will void the manufacturer warranty.
Proper Ventilation
To maintain air circulation for adequate cooling, minimum clearance around the unit must
be maintained. Allow six inches on each side and top, and at least 18 inches below.
Ensure air intake and exhaust openings are not obstructed. If the unit is mounted in a small
room, cabinet, or building, ensure there is adequate ventilation to provide sufficient cooling.
Service Entrance Equipment
Phase Perfect phase converters are suitable for use as service equipment when the
molded case circuit breaker (MCCB)/disconnect, service ground conductor terminal, and
grounding electrode conductor are factory installed and the converter is labeled “Suitable
for use as Service Equipment.” Consult local electrical code for installation guidance.
Source Branch Circuit Protection
If a circuit breaker is not factory installed, branch circuit protection must be installed in the
circuit sourcing the phase converter. See Table 16 for recommended circuit breaker sizing.
Fuses may be used for circuit protection, consult local electrical code for proper sizing.
Installation of a disconnection means within sight of the phase converter is recommended.
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