480V:
Bolt idler leads 4 & 7 together, 5 & 8 together, and 6 & 9 together in pairs
inside the motor conduit box. Insulate these connections with electrical tape
or heat shrink tubing. Connect the ground line to the ground screw inside
the motor conduit box. Inside the phase converter panel box, connect
terminal A to 1, terminal B to 2, and terminal C to 3. Wiring diagram is listed
on the idler motor for your reference.
2.1.3 GENERAL WIRING CONSIDERATIONS
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Follow all local, state and national electric codes (NEC) which may supersede
Larson Electronics recommendations.
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T3 is the manufactured line; DO NOT use T3 for any single phase loads.
-
Protect all wire and machinery with proper size breakers
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Always make sure rotary phase converter starts before external load(s) are applied.
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A qualified electrician should do all wiring.
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DO NOT assume that a breaker box neutral is a ground! Be sure to ground all equipment
including breaker boxes, phase converter control panel & Idler, disconnect switches,
transformers, loads etc.
-
Run all control voltage and equipment controls from lines L1/T1 and L2/T2. Terminals A
and B are for the idler only.
-
See Wire Sizing Recommendations (section 2.1.4) for wire sizes. This is VERY
IMPORTANT, as under sizing the wire may lead to a phase converter that does not start
or work properly.
-
To minimize voltage drop, Larson Electronics recommends increasing wire size one size for
every 50 feet of run and rounding up.
4 & 7
5 & 8
6 & 9
3
2
1
1 & 7
3 & 9
2 & 8
4, 5, 6
