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WARNING
Failure to attach the protective earth ground wire securely to the enclosure
creates a potential shock hazard. Do not operate the Class 2000 meter without
a protective earth ground connection securely installed.
3. Wire Entry.
a. Two openings exist on the unit enclosure, one for 1/2" conduit and one for 3/
4" conduit. The 3/4" conduit opening located on the bottom of the enclosure
is used to bring in MAINS Power (voltage lines to power meter) and current
sensor wiring. The 1/2" conduit opening located on the top of the enclosure
is used to interface low voltage signals, such as the IDR interface and iso-
lated pulse output. (Outdoor enclosures equipped with one 3/4" conduit
opening on bottom of enclosure only.)
b. Route the appropriate cabling to and through the respective enclosure open-
ing. The conduit and fittings interfacing the enclosure entrances must be UL
listed and properly sized to the enclosure port diameter, The interfacing fit-
ting must use a gasket seal ring to interface between the conduit fitting and
the enclosure entry point. After installing the conduit fitting and conduit, verify
that the conduit fittings are aligned properly to their respective enclosure
entrance ports and tightened securely to prevent moisture entry. VERIFY
that each conduit slip nut is securely tightened to its respective conduit fit-
ting.
c. Outdoor applications require the use of the optional 4X enclosure. The same
principles outlined for indoor meter installations as defined in the aforemen-
tioned paragraph carry over and apply to outdoor installations with one
exception. This exception is that the conduit and fittings for outdoor installa-
tions require an outdoor material rating and approval for 4X applications.
4. Unit MAINS Wiring (Voltage Wiring Connections)
a. Remove the shield located over the phase A,B and C screw terminals on the
main power board. This shield can be removed by pulling back on the latch
on the right side of the shield and lifting up on the front. Wire each connec-
tion to the terminal block with stranded wire 14-12 AWG, rated at 600 VAC.
b. Strip back all wire insulation to expose between 1/4" and 3/8" of the copper
conductors. Gently twist each wire to prevent fraying. Insert the conductors
into their respective terminal block position and tighten down the terminal
block screw to securely fasten the conductor. The terminal block is clearly
labeled PHASE A, PHASE B, PHASE C and NEUTRAL.
c. Connect the NEUTRAL wire to the appropriate terminal block position.
NOTE: For Delta MAINS input wiring, DO NOT connect the NEUTRAL wire. Remove
the terminal block screw for this position.
9
CLASS 2000 METER
62-0389-03
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