ML20126M900
| ML20126M900 | |
| Person / Time | |
|---|---|
| Site: | Susquehanna  |
| Issue date: | 07/31/1992 |
| From: | NRC OFFICE OF ADMINISTRATION (ADM) |
| To: | Hymanson M MUNGER, TOLLES & OLSON |
| Shared Package | |
| ML20126M903 | List: |
| References | |
| FOIA-92-212 NUDOCS 9301110137 | |
| Download: ML20126M900 (20) | |
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- RESPONSE TO FREEDOM OF I"N^t I >P^nmt l 1 INFORMATION ACT (FOIA) REQUEST o^u l s .... /
e JUL 311992 DOCK El NUMB [ R!bl Uf dOplK 4B f /
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RE QUEST E R Ms. Marsha Hymanson PART IcAGENCY RECORDS RE LE ASED OR NOT LOCAT ED iSee ched et/ bomes/ ;
No apncy records sutyect to the request have been located No additiona: agency records sutyect to the request have be*n locatni Request *d records are avadable throug9 another pubhc distributeon program. See Comments section, y Agency recordi subject to the request that are identified in Append,u fes) A a,e a+ ready avanaue for pubhc inspection and copying at the j NRC Pubhc Document Room. 2120 L Street. N W , Washington. DC. I y Agency records subject to the request that are identified in Appendaks) O are being rnade avahable for pub!ac inspection and copying at the NRC Pubhc Document Room,2120 L Street. N.W., WasNn;; ton. DC. in a folder une tNs FOI A number, )
l The nonpropneta y verpon of the proposahs) that you agwd to accept m a telephone corversahon with a member of my staf f is now be.ng rnade avadable for pubhc mspection and copying at the N RC Pubhc Document Room 2120 L Street, N.W , Washmgton. DC, in a folder under this FOI A nurnber.
Agency records subject to the request that are identified in Appendaled may be inspected and topied at the NRC Local Pubhc Document Room identified in the Comments section, Enclosed is inf ormat:on on how you may ot-ta,n access to and tne char;rs for com-ng records located at the NHC Pub!ic Document Room,2120 L Street, N W~ Washing'on DC X
A 9encv records subiect io the request are enclosed Appendices A & B Records subject to the request have been referred to another Federa' agencybes) for revew and d rect response to you Fees You wJi be bihed tw the NRC for fees totahng $
N w wd! receive a refund from the N RC m the amount of 5 in view of NRC's response to th:s reqcest. no f<ther act.on is t,e'ng taken on ager leuer dated ,No P ART ll. A-INFORM A TION WITHHE LD F ROM PUBLIC DISCLOSURE Certain information in the rewested records is beine, withheid fro n poonc disclasse purmaet to the e= emotions described m and for the reascas stated in Part 11. 8, C, and D. Any released portions of the documents for which on!v part of the record is being withheid are being made avadable for pubhc inspection and cooving h tne NRC Pubbc Document Room,2 t20 L Street. N W, Wnhmg'on. DC m a folder under this FOI A number.
COMM E NTS SIGN AT' .. C T O M De N FREEDOY ; INF ORMMION ANO *US LIC A riONS SLH ilCE S
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4 Re: FOIA-92-212 APPENDIX A FECORDS MAINTAINED AMONG PDR FLIJIS liUMllEB DATE DESCRIPTION
- 1. 3/6/90 Letter to H. W. Keiser from J. P. Durr re: Combined Inspection Report Nos. 50-387/90-02 & 50-388/90-02 with enclosed report (10 pages) ANO 9003140003
- 2. 2/12/91 Letter to H. W. Keiser from J. P. Durr re: NRC Regional Combined Inspection 50-387/90-24; 50-388/90-24 with enclosed report (15 pages) ANO 9102210013
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Re: FOIA-92-212 APPENDIX B RECORDS BEING PIACEP INTO TIIE PDR UNDER THE ABOVE REOUEST NUMBER l{UliDJB DATE DESCRIPTION
- 1. Undated 4.0 Licensee's Actions on Previous NRC Concern (1 page)
- 2. 7/29/82 Susquehanna SES Work Authorization, WA No. S22518 (6 pages)
- 3. 7/31/82 Susquehanna SES Work Authorization, WA No. S22520 (3 pages)
- 4. 2/10/86 Instruction Manual for Motor Control Center (6 pages)
- 5. 1/4/88 Procedure Cover Sheet, 480 Volt and Under Circuit Breaker High Current Testing, MT-GE-008, Revision 7 (13 pages)
- 6. 6/19/89 Allegation Panel Decisions, RI-89-A-0072 (1 page)
- 7. 6/22/89 Allegation Panel Decisions, RI-89-A-0072 (1 page)
- 8. 1/19/90 Procedure Cover Sheet, 480 Volt and under Circuit Breaker High Current Testing, MT-GE-008, Revision 8 (17 pages)
- 9. 3/14/90 Allegation File Document Control Form, Allegation No. RI-89-A-0072 (1-page)
- 10. 6/7/90 Allegation Review Board Summary, Allegation No. NRR-89-A-0023 with enclosure (19 pages)
- 11. 7/3/90 Memo to W. T. Russell from T. T. Martin re: Allegation (RI-89-A-0072) Adjustment of Molded Case Circuit Breakers (MCCB) at Susquehanna (4 pages)
- 12. 2/25/91 NRC Open Item 387/90-24-01 with l attachments (16 pages) l-l t
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Re: FOIA-92-212 APPENDIX B R1' CORDS BEU4G PIACFD INTO TILE PDR UNDER TIIE ABOVE REOUEST NUMBER HUMBXB DATE DESCRIPTIOJ
- 13. 11/15/91 Letter to H. W. Keiser from J. P. Durr re: Combined Inspection Nos. 50-387/91-17 & 50-388/91-17 with enclosed inspection report and Region I Open Item Input Form (20 pages)
- 14. 4/3/92 USNRC Open Item 387/90-24-01 (6 pagos) _
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4.0 LICENSEE'S ACTIONS ON PREVIOUS NRC CONCERN (Closed) Unresolved item (50-387/90-24-01; 50-388/90-24-01), Molded Case Circuit Breakers (htCCBs) internal adjustment done at Susquehanna.
In NRC Inspection 90-02, an issue regarding the licensee's practice of permitting maintenance personnel to disassemble and make internal adjustments to MCCB trip units in accordance with maintenance procedure MT-GE-008 was identified. Concerns u .re raised that the licensee was disassembling and adjusting MCCB trip units without specine vendor published instructions or approval and industry guidance.
During subsequent inspection 90-24, the inspector noted th. Se licensee's procedure MT-GE-008 did not provide detailed information regarding operations involved in disassembly / reassembly of breakers. Additionally, the MCCBs were never tested after original functional test dated July 1982 due to the lack of a formal maintenance testing program. This item was unresolved pending the licensee's re-evaluation of the breakers functional adequacy and periodic testing.
The inspector noted that the licensee has permanently suspended internal adjustment to molded case breakers and procedure MT-GE-008 was revised to reDect this change. The safety evaluation, NL-90-40, prepared by the licensee in accordance with 10 CFR 50.59 and additional analysis of April 3,1992, concluded that the adjustment made to 10 MCCBs did not degrade the safety function of these breakers. Also, test records for two of these breakers (which underwent surveillance testing twice after the original adjustment) showed acceptable time / current characteristics which was within the manufacturer's curves. The licensee has placed these breakers on a periodic testing schedule since March 1991 under PMIP NO. 020.
Based on the above licensee corrective actions, this item is considered closed.
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- 1. Document and determinate breaker power leads. h YES vi5 RWP Nhl-L. no ~W~ no
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Overload Size O N 2 i Setting f6 we c,w ro,eman "$[
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IV. ACTION TAKEN EQUIPMENT HISTORY
SUMMARY
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' S eptember.1976 . Standard Types JB. KB. and M ARK 758 A B2 Mw wb[')t""1 B Vr A Supersedes Apphcation Data 29160 - e HKB -
70 m Amperes. 600 Volts Ac. 250 Vorts Dc. all previous issues Maded to E. D. C/1901.1928/DB 2 end 3 Poles Circuit Breakers l i On olithree phase Detta grounded B phase front adjustable magnetic trip elements . appitcations, refer to Westmghouse. ThermalInn elements are of an mdirectly i heated bimetalhc type having a long time - f delay waft suited for startmg motors havmg Construction These breakers have all the standard AB high inrush currents of long duration in. ' breaker features Two and three pole breakers stantaneous rnagnetic inn settmg may be l
%i are supphed in one trame size; the current car. adjusted between estabhshed kmets to take l I
rymg parts being omitted from the center pole case of circuit surge conditions Tno umts are I (} for two pole breakers in additiorb the M ARK non _ interchangeable on JB breakers, and 76 Type HKB molded case is a higher strength frierc%ngcatfrtrrTW5NMd HKB. fr}s- - , glass polyester matenal with greater resistance
'J to trackmg Type JB Dreakers have non-mie'* Magnetic Trip and Setting Range @
.. ..a changeable trip units. while Tyres KB and as s
HKB have interchangeable tnos. ****'70* e*"o t oo 125 160 17s 200 22s 22 g ,
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g Federal Specification W.C 375b See tabuistion on page 20.1 me% too soo 1000 1250 1600 1750 2000 22s3 2500 kew 3so ato soo s2s 7so s7s 100011251260 8 Magnetic Only Circuit interruptets2 Terminals These are breakers with adjustable magnet c
# Two termma!s reauwed per pole. Termina's inp elements only, for apphcatior s wheie short are Underwnters' Laboratones. Inc. hsted fof cucuit protection only is reauued Magnetic O jd wue type and range bsted below When used with alummum conductors, use joint com.
Inp ranges are the same as those hsted f or
/ thermal. magnetic breakers, but the con-pound.
tmuous current ratings m all cases are 225 Terminal arrangement permits ready use of 8 o*f's-other circuit connectmg means. such as rear- Saf T Vue Breakers UBr KB Only)7 Continuous Ampere Ratings connecting studs. Danelboard connectors and Saf T Vue breakers are s.mdar to standard underwriters' Laboratones. Inc. Listed plug.in adaptor kits. beeakers escept that they have a teansparent
- 70. 90.100 t 25 150.175. 200, 225. 250 was ceintee wwe Reage, type window located over the breaker contacts Breaw No of catnes Saf T.Vue breakers are commonly usedia Interruptmg Ratings. Amperes N* tier Underwnters' Laboratories !nc. Listed
^*** steel m H apphcabons wbve sight of contacts is required. Can be supphed m all standard Staneerd eratswee Terminale (Cepper Only)
T y, JB and KB 250 T250Ke i s a.3so ucM cv.or ratags. 2 Watts Ac. 30.000 Asym,25.000 Sym. i e 2aso ucu Ai Molded Case Svvitches (JB KB Only) opuenei auc. er essure Terwno 480 Voit;Ac. 600 Volts Ac 25.000 25.000Asym.. Asym.. f.000 2 000 Sym. Sym, an i A25ca s t esaso ucu Aucu (Non. Automatic interrupters) B,eakers with non automauc detai's can to . 250 Voits Dc: 10.000 , installed where a beavy duty, high capactry Operation disconnect s*ttch without overcurrent pro-MABK 75 Type HKB When the breaker contacts are open the 240 Volts Ac. 75.000 Asym.,65.000 Sym. handle is m either the rmd or OF F position. tection is requued. 480 Volts Ac- 30 000 Asym.,25.000 Synt if m the mid. position the breaker has been
^ ' S tnpped automatically The latch must be reset Circuit Breaker Removat 0 ot Oc 2 - Before mspectmg. instahmg or removmg by movinq the operating handle to the en.-
invue OFF peiunn tmfore auempuno to se, from a cucmt. the cucmt breakre should be Appbcation ' #'""' " ' " '
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ihm berAns .ur demniewd for the protec- sesetung to 310tch. by movmg the handte to . cucmt should be de.'cnenstud tion of bianch and feeder cucuits Bemg of . the ON pmeimn. JB breakers may be mounted cannot le de.cncrgized msutaind tonis rubber - onne.it t we, they a,c nee uiv su.ted for use . m an mvested posibun and am opproved foi utoves and a rubbes floor rn.it should be used m rontrol panet$ panetL%uds switcht nards trvctse f erd h pes KB and HKB may be or sepJrate enclosures whefe a 250 ampefe mounted in an mverted poNtion. but are not d'^i M u * " * "# " " " * *"'80"***a* fr,m, s,te breaker is reouwed . approved for everse f eed The togri te handle . [j " '** " *" ##*
~ M ARK 75 Type HKB Breakers because of operates with the followmg force m pounds . f %, en erme q ircem i w %'me iu i*e"r 'or
+" an '*4 3 thcu bigher mten upung capacity, are ideally from the end of the handte ON. 27 lbs. OFF - O m - ar'5 *-"
1 suited for use m network systems where yn. 29 lbs; RESET 43 tbs g QQ'1,o ngg g% g,,e i usually bgh f ault cu* rents are available. F % Thermat Magnetic Breakers Listed with Undernniers Laboratones. Inc These break art are equipped with thesmal, I i - __ . _ - . - - .- _ .. u -____.u_
av W" vmN w Lppbcation D410 ' Page 38 l A
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To remove a rear. connected cireuet b'eaker Replacing interchangeable Trip Unit, Dimensions, inc hes$ from its mountmg remove tesmmat stud lock. Yypes KB and HKB Not to be usece for construction purposes, nuts anc puit circust '. eaker f orw and See Dirnensan Sheet 29170 tor cetaaed
- 1. Remove circuit breaker from its rnounung dienensions T
o remove a tront-connectec. circuit breaker per mstructions under " circuit breaker . . m its mountino tocsen scsews m teammat re moval"
.ugs and remove cabies from termmals Re.
e o
.nove circuit breaker movatmg scree s and 2. Remove cover by removing four screws. . . .
pull circust b<eaker forward. To remo,e a circuit breemei eau cced w+th **"**** the hne side of the thp umt and loosen 'O pivg.in mountmg blocas hem its mounting. c remove breater mounting screws and putt the screw m the center pole of the same _l g p, gp - [,3 g circun b,eaker forward. ,p
}.
Inspection and Ma'ntenance 4 L 'f t inp unit f om frame af ter removmg Good marntenance procedure ca'is for periodic the operating handle from its mounting. U , { e mspection of aH electncal apparatus mcludmg molded case circuit breakers Terrmnallugs $ InstaH new top umt by reversmg above l~ 4 44 % --* $ and inn umts must be tight to preyt:nt ovef. procedure -a{ ~.1 4" heating Due to the mhetent wrpeg act<on 2,pc,9
, w , % o o % , ,, 3 ,,, g ,,, , ,,, , ,,,
, ,epansomu.o buitt mie the mov ng contacts of att West- 6 Before replacing frame cover and mount-inghouse ciecud breakers, operating the mg circuit b*eaker, check for proper latch-breaker severat times uncter toad wat remove
. Further information mg and closing Perfo<m latchmg and Pnces Pnce List 29 020 P WE A any high res' stance Mm that may nave fcn med clos no operations per mstructions unde' Ordermg Data Tecn Data 29120 T WE A Under normal condu ans additional cleanmg " operation" Open and close breaker several Dimensions Dimension Sheet 29170 of contacts is not reau 'ed However, should times to make cenaan proper latchmg has operatmo and/or atmosphenc conditions Tnp Curves App DatJ 29-16I A WE A been achieved make it r%rable in clean the contarts fu ther, tha follo*mel proceduw is recommended
- 7. Reptace frame cover and mount circud
- 1. Re,ove cover are eit nousbers and * '
stahnma'y cantact assemni.es Accessories and Modifications 2 Wirse c ontact surf ace 4 with a clean cloth Accessones and modthcations available m. d poed m a chicemated solver t if surf aces clude ataem switch. ausiha'y switch. shunt are caerst.veiv nn.c ed or roerodert sceace top. undervottace retcase Ime termmal shields. bQhti, with a fine
- Ide belsim wiping pluq In adapto' kits. rear connectenn studs.
noubt be nmed that 'emovmo the sc Med center studs. mechamcalinterlocks panet. board connectn<s pa*aheimg st<aps motoe A
.cr oftv iwt Jb taaher vn.cs tne Unden operaio's hand l* fockmg riewices. moistu r e rite's laboratUnes Inc , ldDel and f unqvs treatruent
(
._ ___ _ _ - _ - _ ._ .- _ .~ . . - _ . _ _ _ . _ - - ~ . . _ _ . _ _ _ _ .
Westinghouse Electric Corporation 29460 A WE A 'l
\
, @ Low Voltage Breaker Division Beaver. Pannsylvans 15009 Apphcateon Data Page 31 'l l
I l September.1976 Supersedes Apphcation Data Standard Types EB. EHB. FB. and MARK 758 Type HFB AQ Mw adT*IMS lvei ! 15100 Amperes.1. 2,3 Poles;15150 29 160 all previous issues Mailed to. E. D. C/1901.1g28/DB Amperes 2,3.4 Poles Circu*it Breakers 1 W Continuous Ampere Ratings # s , dy . My ,m Underwnters' i aboratories. Inc, listed Type E8 f--- Ij
'----- .; *y d
"a= j " ' L 1 Pole.120 Volts Ac.125 Volts Dc: 15-100 ; a
- 2. 3 Poles 240 Volts Ac.125/250 Volts Dc f4 I 1 T >, *;
15-100 Q m jli j #
-4 il i '
Type EHB 1 Pove. 277 Volts Ac.125 Vohs Dc 15100 3i i l/, G 2 Poles. 480 Volts Ac. 250 Volts Dc:15100 m ' p 3 Poles 480 Vorts Ac' 15-100 h{p g Type F8 2 Poles 600 Volts Ac. 250 Volts Dc: 15 150 r 3,4 Poles. 600 Volts Ac:15 150 IB HF$ EMS FS MFS i Pete i Poie 2 Peies a Pete. a poi a M ARK 75 Type HFB 1 Poie.177 Volts Ac.125 Volts Oc.15100 Construction Pounds of force required to operate toggle 2 Poles. 600 Volts Ac. 250 volts Dc: 15 150 These breakers have all the standard AB handie: 3 Poles. 600 Volts Ac 15150 breaker features.Tne HFB breaker molded matenalis a high impact. high tensile. flame 8'eam Amos Oa ote me ancn interrupting Ratings, Amperes resistant gf ass polyester, sin times stronger unverwiners' Laboratories. /nc. Listed and 21 times more resistant to trackmg than vo te t 00 is t 3 75 s5 the standard black moldarta. Type E8: ' 120. 240 vous Ac 10 000 ( Asym and Sym ) Federal Specification W C 375b Thermat Magnetic Breakere See tabulation on page 20.1. EB. EHB. FB and MFB frame breakers are 120/250 Volts Dc. 5.000 equipped with cooperative therrnal magnetic Type EHa: Terrninals ino elements. On low overloads the dimetal 240 Volts Ac 20.000 Asym.18.000 Sym, Thermat magnetic breakers melude load initiates tnopmg action On short circuits the - 277 Volts Ac.15.000 Asym.14 000 Sym terminals only, Underwnters' Laboratones, rnagnetic element mstantly opens the circuit. 480 Volts Ac: 15 000 Asym.14 000 Sym. Inc hsted for wire sizes and rances hsted On high overioeds, the bienetal. gradually 250 Volts De 10.000 below. Line termmals are available if required, bendmg. assists magnetic inoping ov short-When used with cluminum conductors, use ening the air gap After cabbration, breab er Type FB: jomt compound. cases are sealed to prevent tampenng. thus 240 Volts Ac:20,000 Asym.18 000 Sym. tnp elements are not adi ustable and are not 480 Voits Ac 15 000 Asym.14,000 Sym ad e' *"
- interchangeable 600 Volts Ac:15.000 Asym 14.000 Sym 250 Volts Dc: 10.000 Sisaeare Pruaure Termiasia Magnetic Only Brealiers (F B. HFB)7 i M ARK 75 Type HFB
[8 '"O 150 Q" auc=
$8','/,0 Front adjustable magnetic on8y circuit breakers s 4.aro are instantaneous inp devices providing ,
240 Volts Ac: 75 000 Asym. 65 000 Sym @ o,,,,, ,, a ij e , p ,,,,,,, y ,,,,,i, short circuit protection only 1 hey are notmally 480 Vous Ac: 30 000 Asym. 25 000 Sym so Aveu _ e i 4. . a used m consunction with additional over. 600 Volts Ac. 20,000 Asym.,18.000 Sym. too- AUC=
- 4 - 4 /o current peotection 250 Volts De 20.00% Removaue terminal collar permits ready use Wp umts are ubbrated and set at the f actory Application of rest connected studs, plug in adapter kits. ,, gg or panelboard connector straps. be field.adiusted to the low value The it p These breakers are designed for use m control panels convertible power pane l boards- Operation settmg may be changed by turnmg the switchboards, motor control centers. bghtmg When the breaker contacts are open.the -
panels. bus duct plug ms. individual on- handle is m either the mid or OF F position. @ t om me m on at W e ac e e + closures and machme toot contro8 panels """**M#"*'" '***** This breaker es used most frequently on motor if m mid-position, the breaker has been $s' [ZZ$$[ l f bianch circuits because its ratings cover most inpoed automatica!!y and the latch must be protectwe reaunements Tliese breakers are reset by movmg the operating handie to the 7 wi ut im Os* i "*'
- 05 *e ' C ISC *
- c t ac' t's v$"
l hsted witn tne underwriters' Laooratories Inc. entreme OFF position before attemptmg to ' restere to service Contacts may be closed. l- On atithree phase Detta grounded B phase after resett4ng the laten, by moving the handle opphcationt refer to Westinghouse to the ON position I
l 29160 A WE A Apphcstion Data
'Pche 33 r
E aploded Wow. Thermal Magnetic Bresker B- c m m si w w Co ver On."anny Term.nal Mo .nnnu Screw Arc (abono.Oica y,, - i,. .u S. r m Hanma A,c E mro;*r Mnonnnq soc. Bw
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adjusting kneb in the front cover of the Circuit Breaker Removal Accessories. Modifications breaker The ed;ustment is designed to follow Before mspecting. enstaking. or removing from Accessories and modifications are available as a knear scale. so that each of the sett>ngs a circuit. the circuit breaker should be in the follows See PL 29120 or DB 29150 for provided has a definite ampere ssnacance OF F positton. and if pracbcal, the circuit desenption. Line termmal shields. rear con. within cahbration toWrances should be de energoed if the circuit cannot nectmg studs, plug in adapter kits. panel. be de energaed. insulated tools, rubber board connec1 ors center studs. handle locking Magnetic Trip Range and settings gloves, and a rubber floor rnst should be used. devices. paranel connectors. mo sture and i en+g ceawuca uwe ne a f ungus treatment. shunt top. undervoltage p 3 5 1C 25 25 30 30 To remove a rear-connected circuit breaker release. euschar, switch. alarm swdch. me+ ko. 7 is 35 3; so 50 so from its mount ng. remove termenst stud lock- chanicalinterlocks. and motor operator Ken 22 45 110 80 1 Do tso 270 nuts and pull circuit breaner fMward Dirnension s. Inches t senme Co"i+ m s wwe R v'*e To remove a front connected circuit breaker Not to be used for constructron purCCses 50 6: 7 'cc 100 160 frorn its mounting. loosen terminal screws ano See Dimensson Shect 29 170 /or cetauev Low 66 *t0 10' 150 d50 6 7't remove cables from termir als Remove circuit dimensions. Sem tso 440 270 480 155o 14oo breaker mounting screws and pull circutt ,,me..,__. breaker f orw afd. (, Y[d Saf TWue Breakers (Eicept HFB)? qo oo oe c Saf T Vue breakers a e sim !a* to standard To remove a circuit breamer eavipped with - breakers except that the cover is fitted with support blocks from its mounting remove [d [ a transparent window located over the breake' support block breaker mountmg screws and contacts They are commonly used in steel pull circuit breaker formard When the optional bl j l t p n E 3 mill apphcat ons where sight of contacts is boit on support biock feature is used. the ! recuired Can be supphed in au standard
! 5 screws mountng the stabs to the breaker I > '8 DOCS cMductor must also be removed.
If Molded Case Switches (Encept HFB) -~6 Inspection and Maintenance " O~ ' l} I (Non Auto interrupters) These are bre wers without cserload or short Good rnamtenance procedure calls for penodic inspection of all electncai apparatus includ ng Sbk~
~~
j
~t circuit trmp.ng e' aments and can be mstaHed where a cornpact high capacity disconnect molded case circuit breamers Termmat lugs l l= $ ~;
must be f.ght to prevent overheatmo Ove to -_ _ a j - a ! switch is ieQutred without oveicunent pro' the mhetent wiping action buitt into the tecbon n,ovmg contac1s of all Wesbnphouse circuit F urther In f orrnation breakers. operstmo the break er severa! times Pnces Pnce List 29-0?O P WE A Mining Service Breakerst under load wat remove any high resistance Ordenno Data Tech Data 29120 i W E A A spec.ai vers +on of F B and H F B bveamers is fdm that may have formed Dimensions Dimensinn Sheet 29- t 70 ava ime to meet Bunau of Mmes reawre- inp Curves Apphcation Data 29-161 A W E A rnems f or tra$hng cab;e apphcations Refer to 2 Nn' Unhws Lacosame.es me nireo Techn cal Cara 29-128 T WE A J ' D" * "'" av m we 2 cme e'eam me 2 % a r e m :tm.se m e.,w o,w au ci7rme ae e w m<m.*v3cmr a p&c F 0 t'* ne s Breaker Mounting
- 5. *+ mnJ"m e'*vru~'i3o~
'reakers are dep'oved f or edher upside down I .v,". , . 'u". s "#'# "*M** O
.ounUng or reve se feed 3 Westinghouse Electric Corporation Low Voltage Breaker Dms.on Beaver, PennsyNanea 15009
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