GP25NL 25 HP Rotary Phase Converter

READ FIRST - BEFORE INSTALLATION

• ⚠️ Important Note:
• Never start the phase converter with a load connected, including transformers.
• Ensure adequate incoming service. Contact your electric company to verify the transformer's KVA size, which must be larger than the idler motor's HP.
• Do not use wire nuts for any 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. If unsure, contact Phoenix Phase Converters or a qualified electrician. Failure to shut down promptly may damage the idler motor, voiding the warranty.
• Installation must be performed by a licensed industrial electrician. These guidelines do not supersede local and state laws.

Power Requirements

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 amp draw. Example: If equipment draws 20 amps, use a 40 amp breaker.

For multiple machines, double the amp draw of the largest machine and add the amp draw of other machines that will run simultaneously. Example: 20 AMP Lathe, 9 amp saw, 6 amp milling machine. Calculation: (20 AMPs x 2) + 9 AMPs + 6 AMPs = 40 + 9 + 6 = 55 amps. Use the next standard size breaker, which would be a 50 Amp two-pole breaker.

Refer to the chart for minimum and maximum breaker sizes. For rural areas, increase the minimum breaker size by 20%.

WIRE AND BREAKER SIZES (GP25)

Wiring Instructions

Illustration of wire connections. Do not use wire nuts; use bolt-down lugs.

For motors with 12 leads, connect as follows:

Lead 1, 7, 6, 12 to L1.

Lead 2, 4, 10, 12 to L2.

Lead 3, 5, 9, 11 to L3.

(Note: Instructions for 9-lead motors were indicated but not detailed in the provided text.)

Dimensions

Dimensional specifications for the GP25NL model are provided in a diagram (not included in this text-based conversion). The diagram typically shows the physical size and mounting points of the unit.

25 HP Rotary Phase Converter Components

The following table lists the components included in the 25 HP Rotary Phase Converter models. Items marked with an asterisk (*) are assemblies or complete units.