# MEMORANDUM

RE: Ex Parte Communication In Connection with DocketNo.EERE-201D-BT-STD-D027 Energy Efficiency Program for Certain Commercial and Industrial Equipment: Public Meeting and Availability ofthe Framework Document for Commercial and Industrial Electric Motors, 75 Fed.Reg. 59657 (September 28, 2010).
To: expartecommunications@hg.doe.gov
From: Clark R. Silcox, General Counsel National Electrical Manufacturers Association
Date: April 18, 2012

cc: Bill Hoyt, Alex Boesenberg, Rob Boeteler, John Malinowski, Andrew DeLaski, Neil Elliott, Dan Delaney, Michael Bruin, Tim Schumann

This memorandum memorializes another communication involving afollow-up to our previous communications in connection with this proceeding and documented in a memorandum dated March 9, 2012. On April 12, 2012, an email was transmitted to Jim Raba and John Cymbalsky of DOE staff by Rob Boteler of Nidec MotorCorp. on behalf ofthe MotorCoalition. At the meeting referenced in the March 9, 2012 memorandum, we discussed the scope ofthe Motor Coalition's proposal forfuture energy conservation standards and questions were asked about specific motortypes and whetherthey were included or not. The MotorCoalition agreed to provide awritten response to these questions. The April 12, 2012 email stated as follows: {(The Motor Coalition (Me) started our initial discussions ofexpanded scope with the idea of identifying onlythose motor categories that would not be covered. But in the course ofourdiscussions and interactions with DOE it has become apparent that more clarity ofthe categories is needed to help communicate and understand. In response to your request for greater clarification ofexpanded motor scope, the NEMA MG section has puttogetherthe attached table, which has been reviewed by the motor efficiency advocates. This table is a working document to help DOE and the MC better communicate, but not intended to be included in rule language. In addition we have noted the nine motor categories that may need bettertest configuration information. We would like you to review this and let us know ifyou have any questions specific regarding testing. {(The table is meantto represent ageneral definition building offofthe definition from EISA relating to types ofelectric motors that are {(general purpose alternating current induction motors rated for continuous duty operation on 60 Hz electrical power at 600 volts or less." Clarification ofthe EISA definition of "electric motor" along the lines ofthe EPAct definition is used. The table is structured

# completely around the EISA definition as it stands, with further definition ofsubtype Iand subtype II [see section 

# C] covering thetwo remainingtype 2 categoriesthatdo not move to type one.The table has four parts: "A. Covered electric motors are designed in accordance with all ofthefollowing characteristics
"B. The NEMA nominal efficiency ofa motorwith the characteristics ofsection Aabove and having any ofthe following characteristics and none ofthe characteristics listed undersections Cand 0 below is required to be not less than the NEMA nominal efficiency in the appropriate NEMA MG1 Table 12-12 or Table 20-B 

# "e. The NEMA nominal efficiency ofmotors with the characteristics ofSection Aand some ofSection B above and having any ofthe following characteristics and none ofthe characteristics listed under Sections 0 below is required to be not less than the NEMA nominal efficiency in the appropriate NEMA MG1 Table 12-11 orTable 20-A
"d. Motors with any ofthefollowing characteristics are exemptfrom efficiency standards.
"I will letyou forward to Navigantandthe others onthe DOE team. Ihave not sentthisto them." On April 12, 2012, Mr. Raba responded as follows: "Thankyou, Rob.
Wewilltake a look.
Jim
James Raba Appliances & 

# Commercial Equipment Standards BuildingTechnologies Program Office ofEnergyEfficiency & 

# Renewable Energy U.S. DepartmentofEnergy Telephone: (202) 586-8654"

A.pdfofthe spreadsheet attachmentthat accompanied Mr. Boteler's email is annexed hereto.Item 

### # Characteristic

# ~G:I - C 

### ts there is a comment embedded in cell G11 1;-1; ommen that should be moved to where it applies

A. Covered Electric Motors Are Designed In AccordanceWith All OF The Following Characteristics

15 General ur ose motor X As defined in 431.12 of 10 CFR Part431 431.12 defines "g p motor" not "g pOI, DOE pointed this outas problem with EISA Three-phase X Drop use ofpolvphase since onlv talking about 3 phase Used on 60 Hz power supply X Includes motors typically marked 60Hzor50/60Hz "Used on" Is DOE text as DOE did not like Just "marked for" Rated volta e u to 600 VAC X Continuous duty X 2.4.6. or 8 poles X 

## I Iprefer using specific pole numbers

Sin le-s eed NEMA Desi n A.B,C; IEC Design N, H X dropped "and" to remove ambiguity Random wound stator Includes IEC 100frame 10

# NEM~E~6**:~a~aems:~~~a~~~~~~~:;tiotrf:~ !~~::~~~:o70~~ors**  or X NEMA 56 frame and IEC 80

# fr:~~;~ena~~~;s are covered by Subpart X of 

# I IGrouped NEMA and IECtogether because tlela above refers to "All", so can't be separate Items. 11 IEC 80 frame or larger, except for 80 frame open motors X Includes IEC 100frame 1 9 I Altitude 

## I X 

## I When larger size frame!!lQtor is not required for hkJ.h altitudes 20 I Ambient I X 

## I When larger size frame motor is not required for low or high ambient



### 12
13 

# ,. 17 

### 21 22 23 24 25 26 27 28

30
31 32 33

34

36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 Standard Hp or kW rating§> Squirrel-cage rotor Cast or fabricated 

### B. The NEMA Nomnal Efficiency ofA MotorWith The Characteristics of Section A Above and Having any ofthe Following Characteristics and None ofthe Characteristics Listed UnderSections C and 0 Below Is Required to Be Not LessThan The NEMA Nominal Efficiency In The Appropriate NEMA MG1 Table 12-12 or Table 20·B

Broad voltage range

Marked "Usable at 200 volts" Open

TEFC
TENV Example: 208-230; Required to meet efficfency standards at ali voltages In the marked range X Not required to meet efficiencystandard at the**~Useable** at" voltage (208 considered an unusual service condition] NEMA MG1 standard marking Is "200", not "208" Excludes 56 frame Open for Smail Motor Rule (General Purpose. 1-3HP), aU

other 56 frame Open construction**t~es** must meet 12-12 Table levels



## x**U~lIlIll~** 051:1 X Some products ma be exem t, review a ainst exem t list Review yet to be completed????**~_~~nite** purpose**C!_A~:AI** _..**-~-** X Some roducts rna be exam 

### I. review s slnst exem t list**~ciaLp_lJ_rp_ose** Special leads X This option does notvary the status of basic motor Special insulation X I This option does notvarythe status of basic motor

Hi h S.F. X I This option does notvarythe status of basic motor Space heaters X 

## I This option does notvarythe status of basic motor WveDelta X 

## I This option does notvarythe status ofbasic motor Part Winding This option does notvary the status ofbasic molar Tel!'perature Rise This**.2.2.~c:tfl_does** not**v~** the status ofbasic motor ThermostaUthermistor 

# x This option does not varv the status of basic motor Thermally Protected 

## x**T~icailythis** product requires a 3rd Partysafetycertffication (ex: Ul. CSA. etc.). Do we need 2 extra years for OEM designs to be approved?

Hazardous location

- Division 1 

# x TWicallythis product requires a 3rd Party safetycertification (ex: Ul, CSA. etc.). 

### Oa we need 2 extra years for OEM designs to be approved? Fungus/trap protection 

# x This option do not vary the status ofbasic motor

Special balance 

# x This option do

### noi-~e status ofbasic motor Special Conduit Box This option do not vary the status ofbasic motor

Motors operated from inverters 

## x NEMA Design A or B motors that are single speed, meet aU other criteria under the definitions in EPCA for covered equipment, and can be used with an inverter in variable speed applications as an additional feature, are covered equipment under EPCA. In other words, being suitable for use on an inverter by itself does not exempt a motor from EPCA requirements.

_________ +_-+
____ -+

___

### +~=================::::_......,f_---__lpart30Isnot "Inverter Duty" motors X The HP should be rounded up or down to next closet HP for efficiency Non-standard HP or kW ratings requirement per the rules defined in 10 CFR Part 431 Aux Conduit Box 

# x I This option does notvarythe status of basic motor Soecial Paint X 

## I This option does notvarythe status of basic motor

Drains X I This option does notvarythe status of basic motor Dd Cover This option

### d~EI:l;_nClt ;'!!Y...the status ofbasic motor Ground lualhole This option does notvarythe status ofbasic motor

Screens 

# x This**~p~()I1<1oes** not va.ir..the status ofbasic motor MountinQ F1.F2;W1-4;C1,2 

## x This option does notvary the status ofbasic motor Bearing caps 

# x This option does notvary the status ofbasic motor Shielded bearino 

# x This option does not vary the status of basic motor Sealed bearings 

# x This option does notvarythe status of basic motor Clamped bearings 

## x This

### ~~()_El~ __

### not~.ir.. the status of basic motor C Face This option does notvarythe status of basic motor 

# o Flange This option does not vary the status of basic motor Contact seals 

# x This option does notvarythe statusofbasic motor

### 51 Flanged special 

### X This option does not vary the status ofbasic motor 

### 52 Foolless 

### X This 0 tion does nolvary the status of basic motor 

### 53 Insulated bearin $ 

### X This 0 tion does not vary the status ofbasic motor 

### 54 Non-contact seals 

### X This 0 

### tion does not vary the status ofbasic moior 

### 55 Sid ShaftslNEMA 

### X This 0 

### lion does not vary the status of basic moior 

### 60 Non-standard Shaft dimensions or additions 

### X This 0 

### lion does not varylhe status of basic mOior 

### 56 Special fan material 

### X This 0 lion does notvary the status of basic moior 

### 57 Quiet or special fans 

### X This 0 

### lion does not varythe status of basic moior 

### 58 All Washdown including stainless steel consluclion 

### X This 0 

### tion does not varythe status of basic motor 

### 5. Shaft special material 

### X This option does not vary the status of basic moior 

### 81 Double shaft 

### X This option does notvarythe status of basic motor 

### 82 Wound Stator I Squirrel-cage Rotor Sets: Motors 

### X Stator 

### I Rotor Sets that are made into electric motors mustcomplywith this sea e ex ansion motor reoulations. The term 'partial motor' means anyelectric motorsold without one or both 

### 64 Integral shaft partial motors(3/4 Partial Motors) 

### X endplates. Would need 10 showcompliance bytesting an electrically "similar com lete model". 

### 65 Close-Coupled Motors incl. Hydraulic pump molors 

### X M. ofan electricallysimilar motor. 

### 68 

## ' /"'" SDooiaftiaint ;
.. ' 

# . ';X' • 67 Dripcowr. 

### .; .·X 88 RTD's 

### X This option does notvarythe status of basic motor 

### 70 Brake motor 

### X Srake mounted to the motorso that the motor mayoperate as a general urpose motorwith the brake removed 71 Special mounting or base 

### X May need to showcompliance bytesting a "similar model" that could be more easil attached to a dynamometer. TWicallyan enclosed motor that can be immersed in water bul it is twically 77 Immersible 

### X operated after immersionlflooding is cleared. Motorshould be tested with contact seals removed. 

### 82 Encapsulated Stator Windings This option does notvarythe status ofbasic motor 

### 83 Motorswith sleeve bearings Mayneed to show compliance bytesting a "similar model" with anti-friction ball bearings that could be more easilyaltached to a dynamometer.


### 84 Vertical Pump Motor (P-Sase) Mayneed to show compliance bytesting a "similar model"with anti-friction ball bearings thai could be more easilyattached to a dynamometer.


### 85 Motorswith Ihrust bearings Mayneed to show compliance bytesting a "similar model"with anti-friction ball bearings thai could be more easilyattached to a dynamometer.


### C. The NEMA Nominal Efficiency of Motors With The Characteristics of Section A and Some ofSection B Above and Having Any ofthe Following Characteristics and None ofthe Characteristics Listed Under Sections 0 Below Is Required to Be Not LessThan The NEMA Nominal Efficiency In The Appropriate NEMA MG1 Table 12- 

## 11 or

## Tabale 20·A

Nextframe largerfor automotive industry. ACTION ITEM: NEMA MG1 

### 18 U-Frame definition needs to be Inserted 

### (180,210, 250U-440U). NEMA to repast the U-Frame pdf document that dimensionally defines this construction.


### 29 Fire Pump Special purpose motor requiring UL

### 1004 approval for fire pump use. Defined as general purpose motor in NFPA. this should be changed there.



### D. Motors With Any OfThe Following CharacteristicsAre Exempt From Efficiency Standards

NEMA Desi n 

### 0; 

### X 14 TEAO or Open Air Over 

### X Re uires air flow from external drive air source Special purpose motor intented to be operated on a variable frequencyinverter 

### 35 Definite Purpose Inverter-Fed [Part 

### 31] moiors 

### X drive with a specific stator winding that allows wide speed range or high lorque at lowspeed. 

### 83 Wound Slalor 

### I Squirrel-cage Rotor Sets: End Use Equipment 

### X Customers that applythese sets into their end use equipment. Le. submersible umps would be exempt to the motor reoulations. 

### 8. Integral Brake motor 

### X Integral brake design factory buill cannot operate at its rating 

### if the brake were removed 

### 72 Multispeed motors 

### X Uses special single or multiple stator windings 10 achieve more than one speed 

### 73 DC motors 

### X notalternating current 

### 74 SinQle phase motors 

### X not oiyphase

- Qenerallycovered bvSub art X of 10 CFR Part

### 431 Liquid-cooled electric motor is anyelectric moiorwhich is cooled bycirculating 

### 75 Liquid Cooled 

### X liquid, the liquid or liquid conductors coming in direct contactwith the electric motor Darts. 

### 76 Submersible 

### X Submersible electric motor is anyelectric motor designed for operation while continuousl submersed in a_fiquid. 

### 78 Electronicall Commutated Molars ECM 

### X requires special control for operation 

### 7. Switched Reluctance motors SR 

### X requires special control foroperation 

### 80 Permanent Magnet Motors 

### X 81 Intermittent or Non-Continuous Dutymotors 

### X**t~icalJy** special desi ns in small package size for high energydensity Looked II

was "sl

already 11 already 11

corected
How doe 'Wound" also applied to Rotor 

### d"

- modified comments

# I

to mathc title of Part 31
differfrom Item #62?