PHOENIX GP50PL 50 HP Rotary Phase Converter Installation Guide

: June 16, 2024
: Phoenix

Table of Contents

PHOENIX GP50PL 50 HP Rotary Phase Converter
Product Information
Product Usage
FAQ
ELECTRICAL SPECIFICATIONS SHEET
READ FIRST – BEFORE INSTALLATION
Power requirements
Mounting the Phase Converter Panel
CONNECTING THE IDLER MOTOR WIRES
PL AND PH MODELS
Dimensions GP50PL
50 HP Rotary Phase Converter Components
Documents / Resources

PHOENIX GP50PL 50 HP Rotary Phase Converter

Product Information

Specifications

Model: GP50PL
Power Requirements: 230V (NL and PL Models) / 460V (NH and PH Models)
Idler Motor: 1 AWG Copper
Breaker/Fuse: 80 MIN / 250 MAX

Product Usage

Power Requirements

Before installing the phase converter, it is important to verify the KVA size of the transformer with your electric company. The KVA number should be larger than the HP (Horsepower) of the idler motor.

Checking Connections

Check all connections, including factory connections to the power block, to ensure they are secure. It is recommended to recheck connections after a few weeks of using the converter.

Understanding Speed and Shutting Down

If you experience any issues with speed, it is important to shut down the phase converter immediately. If you do not understand how to troubleshoot or resolve the issue, contact us or a qualified electrician. Failure to turn off the unit may result in damage to the idler motor, which will not be covered under warranty.

Wire and Breaker Sizes

For proper operation, it is necessary to use the appropriate wire and breaker sizes. For motors, double the amps size of the machine. For example, if the equipment pulls 20 amps, use a 40 amp breaker.
To determine the breaker size for multiple machines running simultaneously, calculate the total amps by adding the amps of the largest machine and the other machines that will run at the same time. For example, if you have a 20 AMP Lathe, a 9 amp saw, and a 6 amp milling machine, the calculation would be: 20 X 2 = 40 + 9 + 6 = 45 amps. In this case, use the next standard size breaker, which would be a 50 Amps two-pole breaker.
For rural areas, it is recommended to increase the minimum size breaker by 20%.

Connecting the Idler Motor Wires

Refer to the illustration provided in the user manual for connecting the idler motor wires. Do not use wire nuts; instead, use bolt-down lugs.
Depending on the number of leads at the motor (9 or 12), follow the corresponding instructions provided in the manual.

Installation by a Licensed Electrician

The phase converter must be installed by an industrial licensed electrician for safety and proper operation. Ensure that the motor load breaker is sized twice the full load amps of your equipment.
For PL and PH models, connect the phase converter panel to a load center, 3PH breaker panel, or equipment. Follow the provided instructions for connecting the idler motor wires.
If your run is over 50 feet, it is recommended to use a disconnect.

Voltage Connection

Depending on the model, make the appropriate voltage connection:

For NL and PL Models (low voltage), make a 230V connection.
For NH and PH Models (high voltage), make a 460V connection.

FAQ

Q: What are the dimensions of the GP50PL?

The dimensions of the GP50PL are not mentioned in the user manual. Please refer to the product specifications or contact our customer support for detailed dimensions.

Q: What components are included in the GP50PL?

The GP50PL includes the following components:

Relay (1)
Complete Run Bank Assembly – Prewired (1)
3 Pole Contactor 75 amp – 230V (1)
9 Bank Start and Run Capacitor Holder Only with Base (4)
3 Phase Power Block (1)
630 MFD 220V Start Capacitor (3)
100 MFD 370V Run Capacitor (1)
Complete Capacitor Start Bank Assembly – Prewired (1)
Complete Back Plate Assembly – Prewired PL Model (with Start and Stop Button) (1)
Complete Panel with NEMA 4 Enclosure Prewired PL Model (with Start and Stop Button) (1)
Idler Motor (1)
Complete Unit Phase Converter Panel (PL Model) and Idler/Generator Motor

GP50PL

ELECTRICAL SPECIFICATIONS SHEET

CAUTION
READ INSTRUCTIONS BEFORE OPERATING

READ FIRST – BEFORE INSTALLATION

Most important step to know.
NEVER Start the phase converter with a load, this includes transformers.
Make sure you have the incoming service to start the phase converter, call your electric company verify the KVA size of the transformer, that KVA number should be larger then the HP of the idler motor.
DO NOT use WIRE NUTS for any connection, use the bolt down lugs.
Check all make sure all connections even factory connections to the power block are secure, also recheck connections after a few week of using the converter.
When powering up the unit, if the idler does NOT come up to FULL SPEED, then shut the phase converter down right away. If you don’t understand then call us or a qualified electrician. if you do not turn the unit off you have a chance to damage the idler motor that will not be covered under warranty.
Must be installed by a license industrial electrician, our guidelines are not to supersede local and state laws.

Power requirements

You will need to use a motor load type breaker. NOT a quick blow or trip breaker.
Sizing a breaker for a single machine with an inductive load (motors) double the amps size of the machine. Example if the equipment pulls 20 amps use a 40 amp breaker.
Sizing the equipment for multiple machine double the amp of the largest machine and add the the other machine that will run at the same time. Example; 20 AMP Lathe. 9 amp saw, 6 amp milling machine. 20 X 2 = 40 +9 + 6 = 45 amps, use the next standard size breaker which would be 50 Amps two pole breaker.
Use the chart to make sure you don’t go over or under the Minimum and maximum size allowed. For rural areas increase the minimum size breaker by 20% Click on the next picture to see this chart.

GP50

WIRE AND BREAKER SIZES

SINGLE PHASE

| 3/0 AWG Copper under 50 feet

IDLER MOTOR

|

1 AWG COPPER

BREAKER/FUSE

|

80 MIN / 250 MAX

Mounting the Phase Converter Panel

Mount the enclosure first, to a non-vibrating surface, there are two options provided for mounting, next install the back plate with the four nuts provided. Mounting the phase converter panel near the breaker panel is recommended the larger wire is you single phase line, that is best to keep as short as possible. Every 50 feet you will need to increase the size of the single-phase wire.

CONNECTING THE IDLER MOTOR WIRES

THIS IS JUST A ILLUSTRATION OF WHAT WIRES GET CONNECTED TOGETHER, DO NOT USE WIRE NUTS, USE BOLT DOWN LUGS

IF YOU HAVE 9 LEADS AT THE MOTOR CLICK HERE

IF YOU HAVE 12 LEADS AT THE MOTOR CLICK HERE

PL AND PH MODELS

MUST BE INSTALLED BY A INDUSTRIAL LICENSED ELECTRICIAN

Dimensions GP50PL

50 HP Rotary Phase Converter Components

Item Number

| Description

(Click on the description to visit the link to that item)

| Quantity in Model| ****

Price

| ****

SKU#

(Click on 3D viewing)

9| Relay| 1| 47.00| GP90-66
| Complete Run Bank Assembly – Prewired| 1| 490.00| *
27| 3 Pole Contactor 75 amp

– 230V

| 1| 182.90| C375C

4

| 9 Bank Start and Run Capacitor Holder Only with Base| ****

1

| ****

239.00

| ****

CB409HO

2| 3 Phase Power Block| 1| 395.00| GPB603
3| 630 MFD 220V Start

Capacitor

| 3| 24.14| PTMJ630

5

| 100 MFD 370V Run

Capacitor

| ****

1

| ****

26.00

| ****

TRC100

1

| Complete Capacitor Start Bank Assembly – Prewired| ****

1

| ****

490.00

| ****

CB30230

| Complete Back Plate Assembly – Prewird PL Model. (with Start and Stop Button)| ****

1

| ****

2950.00

| ****

CBA50PL

| Complete Panel with NEMA 4 Enclosure – Prewird PL Model (with Start and Stop Button)| ****

1

| ****

3225.00

| ****

GP50PLPO

| Idler Motor| 1| 3175.00|

| Complete Unit Phase Converter Panel (PL Model) and Idler/ Generator Motor| ****

1

| ****

6450.00

| ****

GP50PL

Documents / Resources

| PHOENIX GP50PL 50 HP Rotary Phase Converter [pdf] Installation Guide
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