GP5PL 5 HP Rotary Phase Converter

Before Installation

Important Safety and Installation Notes

• ? Never start the phase converter with a load, including transformers.
• ? Ensure incoming service is available. Contact your electric company to verify the KVA size of the transformer; it must be larger than the HP of the idler motor.
• ? Do not use wire nuts for connections; use bolt-down lugs.
• ? Verify all connections, including factory connections to the power block, are secure. Recheck connections after a few weeks of use.
• ? If the idler motor does not reach full speed upon powering up, shut down the phase converter immediately to prevent damage, which may not be covered under warranty. Consult a qualified electrician if unsure.
• ? Installation must be performed by a licensed industrial electrician. These guidelines do not supersede local and state laws.

Power Requirements

Breaker and Wire Sizing

• Use a motor load type breaker, not a quick blow or trip breaker.
• For a single machine with an inductive load (motors), size the breaker at double the machine's amperage. Example: If equipment draws 20 amps, use a 40 amp breaker.
• For multiple machines, size the breaker by doubling the amperage of the largest machine and adding the amperage of other machines that will run simultaneously. Example: 20 AMP Lathe, 9 amp Saw, 6 amp Milling Machine. Calculation: (20 AMP x 2) + 9 AMP + 6 AMP = 40 + 9 + 6 = 55 amps. Use the next standard size breaker, which would be a 50 Amp two-pole breaker.
• For rural areas, increase the minimum breaker size by 20%.

Wire and Breaker Sizes for Single Phase Idler Motor

Wire Size: 8 AWG Copper for runs under 50 feet. 10 AWG Copper for longer runs.

Breaker/Fuse Rating: Minimum 15 Amps, Maximum 30 Amps.

(A chart detailing specific wire and breaker sizes is referenced visually in the original document.)

Connecting the Idler Motor Wires

Wiring Procedures

Note: This is an illustration of wire connections. Do not use wire nuts; use bolt-down lugs.

For 9-Wire Idler Motors:

Connect Lead 1 and Lead 7 to L1.

Connect Lead 2 and Lead 8 to L2.

Connect Lead 3 and Lead 9 to L3.

Connect Leads 4, 5, and 6 together.

For 12-Wire Idler Motors:

Connect Leads 1, 7, 6, and 12 to L1.

Connect Leads 2, 4, 10, and 12 to L2.

Connect Leads 3, 5, 9, and 11 to L3.

(The original document provides links for specific wiring configurations based on the number of motor leads.)

Phase Converter Panel Connections

Connection to Load Center

For PL and PH Models:

The Motor Load Breaker should be sized twice the full load amps of your equipment.

Single Phase Circuit Breaker Panel:

Connect to a single-phase circuit breaker panel.

3-Phase Breaker Panel or Equipment:

Connect to a 3-phase breaker panel or directly to equipment.

Voltage Connections:

230V Connection: For NL and PL Models (low voltage).

460V Connection: For NH and PH Models (high voltage).

Disconnect Switch: A disconnect should be used if the wire run from the converter to the load is over 50 feet.

(Installation requires a licensed industrial electrician. Refer to original document for detailed diagrams.)

5 HP Rotary Phase Converter Components

(The original document provides links to view items and additional file metadata.)