American Rotary AMP 208-240V User manual

USER MANUALUSER MANUAL
AMP 208-240V

TABLE OF CONTENTS
Warning + Safety Information ....................3
Overview + Thank You...........................4
Warranty........................................5
Product Return Policy............................6
1.0 INTRODUCTION
Introduction.....................................7
2.0 INSTALLATION
Installation ......................................7
3.0 WIRING CONSIDERATIONS
3.1 General Wiring Consideration .................8
4.0 CIRCUIT BREAKER
CONSIDERATIONS
For 208V - 240V .................................9
5.0 OPERATION + MAINTENANCE
5.1 Starting + Stopping..........................10
5.2 Checking Voltages ..........................10
5.3 General Maintenance .......................10
5.3.1 Maintenance...............................10
5.3.2 Lubrication.................................11
6.0 CORD STORAGE INSTRUCTIONS
Instructions .................................... 12
7.0 TROUBLESHOOTING
Troubleshooting ..............................13-14
8.0 IMPORTANT TERMS
Important Terms............................. 15-16
9.0 NOTES
Notes ........................................17-18

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WARNING + SAFETY INFORMATION
DANGER: HIGH VOLTAGE
DANGER: RISK OF ELECTRIC SHOCK
This manual is to serve the purpose of providing recommendations for proper performance but is not to
supersede or replace local or national electric codes. Installation should be done by a licensed electrician who is
familiar with phase converter installations.
WARNING! READ BEFORE STARTING CONVERTER!
If this phase converter does not start in less than 2 seconds, TURN IT OFF and verify the following listed below.
1. This manual covers the installation and proper
wiring for 208-240v208-240v only. If you have 480v or any
other voltage than listed above, incoming power
do not install this unit and call American Rotary.
2. Make sure the wire size meets or exceeds our
minimum recommended size.
3. All loads, INCLUDING TRANSFORMERS, must
be DISCONNECTED before starting the phase
converter each time. American Rotary oers
a variety of manual and automatic disconnect
options. Please visit AmericanRotary.com or call
1-888-743-6832 for assistance.
If your converter still takes more than 2 seconds
to start, call our Toll-Free Technical support
line 1-888-743-6832. You will be asked to verify
conditions 1 and 2 above are met. Failing to meet
these two conditions account for 99% of starting
problems and can result in damage to the
starting capacitors.
This converter is much quieter than an o the
shelf three phase motor. If for any reason it does
not sound like it is running smoothly, TURN IT
OFF and call American Rotary Technical support.
(Please note that there is a break-in period of 100
hours.)
4. Make sure the Phase Converter Panel, the electric
generator/idler and your equipment is grounded!
5. Before connecting the load, verify proper function
of phase converter. This will ensure the protection
of the phase converter and your equipment.
Electric shock could result in death or injury. Please consult qualified
personnel for installation.
Please wait 30 minutes before servicing.

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OVERVIEW + THANK YOU
Thank you and congratulations on your purchase of a state-of-the-art American Rotary phase converter. We
appreciate the trust you have placed in American Rotary through the purchase of this phase converter. We strive
to bring innovation and peace of mind to all of our clients through creating quality three phase power products
that you can depend on.
KEY FEATURES AND CONSIDERATIONS:
• Current limiting soft starting electric generator (also referred to as the idler) made exclusively by Baldor.
• Built-in starter with power guard restart protection.
• Virtually zero harmonic content.
• Industrial Control Circuit - The single-phase power remains on even when the rotary phase converter is
o, allowing you to activate any single-phase control circuits or other single-phase features on your three-
phase equipment. (Custom options are available if all three lines need to be disconnected).
• Built in and installed breaker(s) and receptacle(s).
• True soft start electric generator which allows for a lower in rush current, more precise voltage balance
and a smooth true three phase sinewave.
• American Rotary is a 508A registered panel builder.
• Built in power factor correction.
• Loads can be located a large distance from the converter by simply upsizing the wire.
• American Rotary phase converters should be wired by an experienced and qualified electrician into a
single-phase circuit with proper breaker protection.
• American Rotary phase converters can run any type of load, resistive, inductive, multiple motor, and in any
combination and or number.
• Best warranty in the industry.
• 360° casters.
• Completely plug and play.
• Little to no installation cost.
OUR MISSION
Our mission is to provide quality power
solutions that support our customer’s
growth and help them to realize their
dreams!

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WARRANTY
AMERICAN ROTARY ADVANTAGE
PANEL WARRANTY
All American Rotary, rotary phase converter control panels are warranted against defects in material and
workmanship for a lifetime (excludes DIY panels see DIY panel manual for more information). American Rotary
will repair or replace (at our option), at no charge, any part(s) found to be faulty during the warranty period
specified. The control panel warranty repairs must be performed by/at American Rotary’s facility.
ELECTRIC GENERATOR/IDLER WARRANTY:
The Idler/Generator is covered by Baldor’s two-year warranty. Baldor Idler repairs or replacements must be
performed by/at a Baldor Authorized Service Center. Baldor Idler repairs or replacements must also be pre-
authorized in writing by American Rotary. The warranty inspection report as well as the specification tags from
the generator will need to be provided before replacement can be authorized.
OBLIGATIONS OF THE ORIGINAL OWNER
Transportation of control panels to American Rotary is the responsibility of the original purchaser. Return
transportation is provided by American Rotary when the control panel is “in-warranty.”
American Rotary will not accept Baldor idler returns or repairs sent to American Rotary. All Baldor issues are
handled by Baldor Authorized Service Centers.
EXCLUSIONS OF THE WARRANTY
This warranty does not cover any of the following: accident, misuse, fire, flood, and other acts of God, acts of
terrorism, nor any contingencies beyond the control of American Rotary, including but not limited to water
damage, incorrect line voltage, improper installation, installation where this unit will not meet local electrical
codes, missing or altered serial numbers, and service performed by an unauthorized facility. American Rotary’s
liability for any damages caused in association with the use of American Rotary’s’ equipment shall be limited
to the repair or replacement only of the American Rotary’s’ equipment. No person, agent, distributor, dealer,
or company is authorized to modify, alter, or change the design of this merchandise without express written
approval of American Rotary.
Liability Limitation: In no event shall American Rotary be liable or responsible for consequential, incidental
or special damages resulting from or related in any manner to any American Rotary product, third party
installation(s), manufactured or distributed, or parts thereof. A licensed electrician must perform all installations.
Not all American Rotary phase converters are UL listed. This is an option the customer must specify and
additional charges will apply. American Rotary is not responsible for meeting, complying with or insuring
installation inspections. American Rotary does not accept returns on units that have been installed or energized.
NOTE
Installations must comply with all national and local electrical code requirements and must
be installed by a qualified licensed electrician. Customer is responsible for making sure this
phase converter can pass inspection where installed. Warranty is non-transferable and will
remain with original purchaser/end user.

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PRODUCT RETURN POLICY
This policy covers the return of American Rotary products (excluding Warranty returns, which are covered by
a separate policy). Under this policy, original Purchaser may return product to American Rotary, with its PRIOR
APPROVAL*, for credit under the following terms and conditions:
VALID RETURNS
The unit must have been purchased within thirty (30) days from the American Rotary corporate sales team or
one of its corporate run ecommerce stores to be eligible for direct return (see below as some restrictions may
apply) and cannot have been installed or energized. If purchase was made through a third party such as an
American Rotary OEM Re-seller or Premium Re-seller please contact them directly. Any product whose carton
has been opened (seal broken), installed, or has been marked on in any way is not considered suitable for
resale, and will not be accepted for credit. Special order units are not returnable.
OFF THE SHELF STOCK UNITS AND MODIFIED STOCK UNITS
Units that are defined as o the shelf stock are units such as NON-MODIFIED AR, AD, ADX, and DIY stock
panels. These units are subject to a 25% restocking fee and the return MUST be initiated within 30 days of the
purchase. Customers must return the product to the American Rotary warehouse**, freight prepaid. The product
carton should be packed in the same condition as it was shipped, with adequate protection from damage (We
highly recommend that customers take photos of the return as American Rotary is not responsible for shipping
damage and such damage will be deducted from the refund). Upon receipt, the product will be inspected,
tested, and evaluated. If the product is found not to be in “as-new” re-sellable condition, the customer will be
notified and will be oered the option of having the product returned to them, freight collect.
Units defined as modified are units which have been modified or upgraded from the original stock condition by
American Rotary. Examples include, but are not limited to: factory installed accessory upgrades such as: timer
kits, wireless remotes, installed breakers, receptacles, etc. Modified units are subject to a 25% restocking fee
and all other terms to be deemed a valid return must be met.
SPECIAL ORDER/CUSTOM MADE UNITS
Special order or custom-made units are defined as any unit that the customer has requested a special design or
variation of the original product. These are any units that need to be specially made for the customer or a product
that is not kept in stock on the shelf at American Rotary warehouses. Examples include, but are not limited, to white
labeled products for OEM’s, the AMP, AI Industrial, AUL, TEFC, Special Nema Enclosures or any other “customized”
unit. These units have been specially designed and crafted and will not be able to be returned for any reason.
REFURBISHED/SCRATCH AND DENT UNITS
These units have been discounted due to flaws in craftmanship or handling damage and are not returnable.
Each unit has been tested and inspected to ensure proper mechanical and electrical functionality.
PRODUCT MUST BE IN ITS ORIGINAL UNOPENED, UNMARKED CARTON
Any product whose carton has been opened (seal broken), installed, or has been marked on in any way is not
considered suitable for resale, and will not be accepted for credit.
*PRIOR APPROVAL: Contact American Rotary Return Merchandise Authorization Team to obtain the proper
authorization and instructions for your return.
**Valid Returns must have been purchased from the American Rotary corporate sales team or one of its
corporate run ecommerce stores to be eligible for direct return. If purchase was made through a third party such
as an American Rotary OEM Re-seller or Premium Re-seller please contact them directly.

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1.0 INTRODUCTION
American Rotary specializes in converting single phase electrical power to three phase electrical power. The
three-phase output is delta configured. Most machinery requires a delta three phase voltage and this third
line voltage to ground should not aect operation. If a piece of equipment requires wye voltage and a neutral
connection, the output of the phase converter must be run through a delta-wye transformer to create the
neutral. The phase converter must be started before the transformer is connected electrically. This is done with
a safety disconnect switch. American Rotary can provide these transformers and disconnect switches if needed
by calling 888-743-6832.
2.0 INSTALLATION
Your AMP phase converter from American Rotary has been designed to be completely plug and play for your
convenience. The AMP has come equipped with the necessary components for easy connection and set-up
(installed features may vary).
STEP ONE
To connect to your single phase power supply,
use the provided Nema 6-50P single phase plug.
(Customer requires a 208v-240v Nema 6-50R three
prong single phase female receptacle. If you do
not have a receptacle, you can purchase them at
American Rotary by calling 888-743-6832.)
STEP TWO
Connect the three phase load using the pre-
installed three phase receptacle. (If you do not have
a receptacle, you can purchase them at American
Rotary by calling 888-743-6832.)
STEP THREE
Turn on the AMP rotary converter by pressing the
START button located on the front of your converter.
This is a magnetic starter intended to start the
rotary phase converter. It is not designed or
intended to be able to start your load. If you do not
have a motor starter for the intended load, one can
be purchased through American Rotary by calling
888-743-6832. To turn o the converter, use the red
button labeled STOP also located on the front of the
panel. See STARTING AND STOPPING on page 10
for more information.
STEP FOUR
Place your pre-installed breaker to the on or up
position. This breaker is located above the installed
receptacle.
STEP FIVE
Turn on the power to your load and enjoy having
quality three phase power at your fingertips.

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3.0 WIRING CONSIDERATIONS
3.1 GENERAL WIRING CONSIDERATIONS
American Rotary recommends that a qualified electrician should do all wiring and make all the connections.
It is important to have adequate single-phase electrical service. The actual single-phase current that will flow
through the converter is approximately 1.73 times the three-phase current. The National Electric Code requires
2.5 times the three-phase load current to allow for starting current and a margin of safety. This is a good
conservative calculation to determine your single-phase branch circuit wire size and breaker size. The power
needed to run the phase converter is very small and is negligible in figuring out the power required. The power
required is calculated based on the load(s) only. Please see the list below for additional considerations when
wiring the converter and your equipment.
• American Rotary recommends the use of copper wire. If you choose to use aluminum wire make sure it is
upsized properly, as it does not carry the same rating as copper.
• Follow all local, state and national electric codes (NEC) which may supersede American Rotary
recommendations.
• Increase wire size one size for every 50 feet of run and round up.
• American Rotary highly recommends surge protection to be installed on the single-phase side to prevent
damage downstream in case of a power surge caused by lightning strikes, brown outs, etc. American
Rotary has aordable options for this in stock.
• T3 is the manufactured line; DO NOT use T3 for any single-phase loads such as start circuits, controls, etc.
Run all control voltage and equipment controls from lines L1/T1 and L2/T2. Terminals A and B are for the
idler only.
• Always make sure that the rotary phase converter starts before external load(s) are applied. This includes
transformers that are connected downstream of the converter. American Rotary oers a number of
automatic and manual disconnect solutions to ensure all loads are disconnected before attempting to
start the converter. Failure to do so can result in serious damage to the converter and your equipment, this
will also void your warranty.
• DO NOT assume that a breaker box neutral is a ground. Be sure to ground all equipment including breaker
boxes, phase converter control panel and idler, disconnect switches, transformers, loads etc.
• Wire can never be sized too large, but too small of wire can impede performance and even keep the
converter from starting properly.

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4.0 CIRCUIT BREAKER CONSIDERATIONS
FOR 208V - 240V
For all voltages: Breakers recommended are based o of the largest single load that is able to be started.
Always consult NEC and local codes for breaker sizing. The below chart does not replace or supersede any
requirements by local, state, or national electric codes.
MODEL KVA
LARGEST LOAD FOR
OPTIMAL
PERFORMANCE
HP (AMPS)
MAX TOTAL LOAD
RUNNING
HP (AMPS)
MIN 1-PHASE
BREAKER SIZE
(AMPS)
AMP 5 2.5 2.5 (7) 5 (14) 20
AMP 10 5 5 (14) 10 (26) 40
AMP 20 10 10 (28) 20 (56)* 50
NOTE
All AMP units come standard with a 50AMP Single Phase Plug. This unit must plug into a
6-50R receptacle, if you do not have this please contact American Rotary to purchase one.
*If you run more than 10HP(28AMPS) the provided 50AMP Cord and plug should be removed
and the AMP unit should be hard wired into your single phase breaker.

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5.0 OPERATION + MAINTENANCE
5.1 STARTING + STOPPING
American Rotary phase converters are started and stopped with a mechanical push button. As with most
electrical equipment, frequent stops and starts are harder on the rotary phase converter than steady operation.
The rotary phase converter is extremely low cost to operate at idle (with no three-phase load), and this is
preferable to a high level of stopping and starting. If your load situation dictates that the rotary phase converter
must be started and stopped frequently, call us about our Phase Monitor and Timer Kit for optimum product
operation.
5.2 CHECKING VOLTAGES
Measuring voltage is the easiest way to test to see if the phase converter is working properly. To get the most
accurate measurement, the three-phase load should be running when you are checking the voltage.
VOLTAGE MEASUREMENTS:
Measure L1/T1 to L2/T2 This is your single-phase voltage as supplied from the utility. To get the most
accurate voltage measurement, make sure that the converter is on and the load is
applied.
Measure L1/T1 to T3 This is the voltage between the manufactured line (T3) and one of the single
phase lines. This voltage should be up to 5% higher than the T1 to T2 single-phase
voltage.
Measure L2/T2 to T3 This voltage is the least important. It should also be within 5%. This voltage will
drop down into spec. when a load is applied.
Do not measure line to ground. Voltages will vary widely when doing this.
5.3 GENERAL MAINTENANCE
The rotary phase converter may operate continuously with or without a load. The converter will run cool and
quiet in the no load condition because the voltages are well balanced.
1. Never start the converter with a load applied (including transformers).
2. The converter should start within a second or two. Wait to start loads (including transformers) until the
converter reaches full speed. A timer circuit can be used to automatically start loads after the converter
reaches full speed.
5.3.1 MAINTENANCE
Keep dust and moisture away from the unit. Keep dust from accumulating in the motor and on the air vents on
the side of the unit. Dust can be blown out using compressed air.
Annually check the wires and connections on the phase converter. No connections or wires should be loose.
Also inspect for damaged or missing insulation. Be sure that power is disconnected when doing so!

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5.3.2 LUBRICATION
American Rotary phase converter idlers/generators are custom made and come with pre-packed bearings
using the lubricant specifically designed for this idler. Exxon Polyrex EM high temperature bearing grease or
equivalent polyurea lubricant is recommended for the Baldor Idlers and can be purchased through American
Rotary.
DO NOT use Lithium based lubricants. These may cause premature bearing failure and will void the warranty.
Be careful not to force so much grease into the bearings that the excess finds its way into the windings of the
idler. Some idlers have sealed bearings and will never require greasing even though they contain grease fittings
(applies to all 5, 10 and 15 sizes). For all other units use the following rule of thumb for scheduled maintenance:
For use of the phase converter that is less frequent, add grease to the idler bearings approximately every 6
months. For more frequent use, add grease to the idler bearings about every 3 months. When adding grease,
one or two pumps for each fitting will be enough.
If your unit requires greasing, remove the plastic circular cap on each side of the AMP enclosure to gain access
to the grease zerk as seen in the photo below.
Side panel removed for visual purposes.

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6.0 CORD STORAGE INSTRUCTIONS
STEP ONE
Locate cable tie knockouts on side or back location.
STEP TWO
Using a screwdriver apply force to dislodge top and
bottom knockouts.
STEP THREE
Place plastic guard on top knockout to prevent
fraying.
STEP FOUR
Thread cable through both knockout holes.
STEP FIVE
Coiled cable will be placed between both knockouts
and secured by placing strap end through buckle
and then secured with velcro end to stay in place.
Finished assembly.

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7.0 TROUBLESHOOTING
. MY THREEPHASE LOAD DOES NOT SEEM TO HAVE ENOUGH POWER TO START.
• Check to make sure your converter is turned on.
• Check to make sure your converter is big enough. If not, a second converter of equal size can be installed
in parallel to your converter to double its size. Ask us about our Autolink.
• Make sure your wire is big enough. Go up at least one size for every 50 feet of run. Wire may need to be
upsized for hard loads.
• You may need a larger single-phase service. Everything may be big enough on your end, but sometimes
the power company’s transformer is not big enough to handle the full load plus other loads on your grid.
Call your power company or electrician for service.
. MY MACHINE DOES NOT START WHEN I TURN ON THE CONVERTER.
• The Start/Stop buttons on the converter are designed to only start your converter and not your loads
converter. If your load does not have its own motor starter, American Rotary has a full line of motor
starters available.
. MY MACHINE STARTS RIGHT AWAY WHEN I TURN ON MY CONVERTER.
• Make sure your machine has its own Start/Stop button to ensure the converter is running before the load
is turned on. If your machine does not have its own start/stop button please contact American Rotary.
. A CAPACITOR FAILED OR IS LEAKING.
• A start capacitor may fail as a result of too frequent starts or having a load on when starting. Make sure all
loads are disconnected when starting, including transformers.
• An overload such as too heavy of a load for the converter can cause the start and run capacitors to fail.
• A power surge such as a lightning strike or a brown-out can cause the capacitors to fail. A surge
suppressor may be needed and can be found on the American Rotary website or by calling its sales oice.
. THE IDLER IS VERY HOT.
• The Baldor idlers are rated up to 150° C. It may be normal for them to run hot. High current on one or more
lines may also cause them to run hot. A good voltage balance means a good current balance.
. MY THREEPHASE LOAD HAS CONTACTORS THAT ARE CLICKING, LIGHTS THAT ARE FLICKERING OR IT KICKS OUT AS SOON AS IT
STARTS.
• All controls should be run from T1 and T2 (the single-phase lines). These lines do not fluctuate voltage
as much as T1 to T3 or T2 to T3. If your machine does not have these clearly marked, try dierent
combinations of T1, T2 and T3.
. MY VOLTAGE IS TOO HIGH OR TOO LOW.
• The voltage that the phase converter will produce is based o the incoming single-phase voltage. The
phase converter will use your voltage measured leg to leg on single phase as a baseline for balancing
the voltage. Leg to leg voltage may vary by about 5% while under load. The phase converter does not
transform the voltage up or down. If you need to raise of lower your voltage, a transformer may need to be
added. Please contact American Rotary for assistance.

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. MY BREAKER IS POPPING.
• Your breaker may be undersized. Check sizing requirements for your current setup. If further assistance is
needed in sizing, contact American Rotary.
• Make sure your wire is big enough. Step-up at least one size for every 50 feet of run. Wire may need to be
upsized for hard loads.
. MY VOLTAGE IS NOT BALANCED.
• Do not measure line to ground. T3, the manufactured line, references a floating ground. The output of a
phase converter is a Delta three phase voltage. If a neutral or 120 volts to ground is needed from all three
lines, a Delta-Wye transformer is needed. American Rotary stocks the correct transformers for this.
• Make sure to check the voltage under load as it will be more balanced at that time.

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8.0 IMPORTANT TERMS
TRANSFORMER
A piece of electrical equipment that is used to increase or decrease electrical voltage.
DISCONNECT
A mechanical switch that is used to break a connection between an electrical wire or line to provide isolation
from the power source to a device.
CIRCUIT BREAKER
Commonly referred to as a breaker, is an automatically operated electrical switch which will protect an electrical
circuit from damage caused by excess current generally caused by an overload or short circuit on the line.
Breakers are available in dierent sizes all based on the applications.
LOAD CENTER
A panel that is used to house multiple breakers which will also serve the purpose of providing power distribution
and isolation for the machine loads.
ELECTRIC GENERATOR/IDLER
The rotary portion of the phase converter that is custom designed to produce the manufactured leg of a three-
phase system that is powered from a single-phase system.
CONTROL PANEL
The main panel as part of the three-phase converter. This is where all of the electrical connections are made,
where the phase converter is turned on and o, and the panel that houses the start and run circuits for the
phase converter.
CAPACITOR
Stores electrical energy to assist with start loads and voltage balancing. An American Rotary phase converter
will have two sets of capacitors, each serving a separate purpose. You will have start capacitors and run
capacitors. Start capacitors are only engaged during the starting of the converter and during the start-up of the
load whereas the run capacitors are engaged at all times when the converter is running.
CONTACTOR
An electrically controlled or magnetically controlled switch used to engage an electrical circuit. This is used
simply to complete an electrical connection and should not be considered a disconnect.
GROUND
Provides an alternate route for electrical current to flow back to ground or Earth in the event of a problem in the
wiring system.
DELTA POWER
In simple terms in reference to a three-phase system, it would be a four-wire system (three hot wires and a
ground). With a delta system, the power is connected in a triangle. When measuring a delta system leg to
ground you will end up with a high leg. Delta systems should always be measured leg to leg when checking for
voltage balance as you will get similar readings leg to leg.

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WYE POWER
In simple terms in reference to a three-phase system, it would be a five-wire system (three hot wires, a neutral
wire, and a ground wire). A wye connection utilizes a star connection. Measuring voltage on a wye system will
give you around 120v to ground on all three hot legs or between 208-240v when measuring between hot legs.
NEMA TYPE 
This is an indoor rated enclosure that is providing protection to the equipment inside from typical indoor
contaminates such as dirt or other solid falling objects.
NEMA TYPE R
This is an outdoor rated enclosure that is providing protection to the equipment inside from falling rain, sleet,
snow and external ice formation. With an American Rotary Type 3R enclosure, the access door is also equipped
with a gasket for an extra layer of protection.
TEFC
Stands for Totally Enclosed Fan Cooled. This is a type of electric generator enclosure that does not allow outside
air to circulate through the interior of the generator. Instead, it uses an externally mounted fan that blows air
over the frame to cool it. With this enclosure, you can mount the electric generator/idler outdoor without the
need for an additional enclosure around it.
IDLER JUNCTION BOX
Also referred to as the J-Box. This is the box on the side or top of the electric generator/idler where the wire
connection points are made. The junction box has a knockout where you can run the wires through and
secure using a wire clamp or compression connectors. The front of the junction box will open to allow the wire
connections to be made.
INSULATING WIRE CONNECTIONS
This is the process of covering any wire connection points that are typically using metal with a non-conductive
material. This process typically utilizes the use of rubber mastic tape, heat shrink tubing, or standard electrical
tape.
CURRENT
The rate of which electricity travels through a set point.
REGENERATIVE CURRENT
Extra current or ghost current that is created when there are motors on a system. They can add current back
into the line which can cause an amp meter to give an inaccurate reading and read higher than the actual
amount of current being utilized.

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9.0 NOTES

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9.0 NOTES