GEI-6871 9E INSTRUCTIONS M ULTI-CONTACT AUXILIARY RELAYS TYPE HFA53 GE Protection nd Control 205 Gret Vlley Prkwy Mlvern, PA 19355-1337
2 for Semi-flush Mounting (Front View) Connected Rely with Flnge Figure 2 (8025537) HFA53 Bck- (Front View) Connected Rely in Stndrd Cse Figure 3 (8025264) HFA53 Front- Plunger on Hnd-reset Relys Only Figure 1 (8025536) HFAS3 Bck-Connected Rely in Stndrd Cse (Front View). GEI-68719
3 To the extent required the products descried herein meet pplicle ANSI, IEEE nd NEMA purchsers purposes, the mutter should e refered to the Generl Electric Compny. The.s e instructions do not purport to cover ll detils or vritions in equipment nor provide for every performed simultneously. mounting; steel flnge is necessry for the ltter. contct rrngements listed re ville. interrupting cpcity of ech contct. mperes continuous or 30 mperes for one (1) minute. Tle I lists the non-inductive The ck-connected relys re suitle for either surfce mounting or semi-flush Some of the contcts re uilt with specil offset so tht when circuit-opening contct of these contcts requires n dditionl strong contct spring to prevent contct ounce The HFA53L rely is hnd reset y mens of plunger ssemly instlled through the The contct code must e specified y the rrngements listed in Tle Ill. Only those The Type HFA relys re ville with coil rtings for stndrd voltges up to 575 volts t The current-closing rting of ech contct is 30 mperes The current-crrying rting is 12 25, 50, or 60 cycles nd up to 250 volts DC trnsprent cover. All other HFA53 relys covered y these instructions re self reset nd nd circuit-closing contct re used s pir, mke-efore-rek circuit results. The use nd ensure contct overlp. These contcts re designted s long-wipe contcts. with n externl resistor to otin pickup time of 1/2 cycle (60 cycle sis). CHARACTERISTICS RATINGS or circuit-closing ppliction. This rrngement permits numer of opertions to e re suitle for surfce mounting only. hve n instntneous dropout. The Type HFA relys re instntneous, hinged-rmture, multi-contct, uxiliry relys. They hve six (6) electriclly seprte contct circuits dptle for either circuit-opening The HFA53 relys re ville for front or ck connection. The front-connected relys The HFA53K, HFA53M, HFA53N, HFA53R, nd HFA53T relys re designed to e connected INTRODUCTION DESCRIPTION possile contingency to e met in connection with instlltion, opertion or mintennce. Should further TYPE HFA53 MULTI-CONTACT AUXILIARY RELAYS informtion e desired or should prticulr prolems rise which re not covered sufficiently for the GEI-68719 stndrds; hut no such ssurnce is given with respect to locl codes rid ordinnces ecuse they vry gretly.
TABLE I 12 30 115 30 VOLIS AMPLKhS VOLIS AMPUS DC AC 4 should need djustments, refer to the MAINTENANCE section of this ook. The relys re shipped from the fctory with ll necessry djustments mde. If the relys ADJUSTMENTS requires n insulting ushing for ech terminl. The Type HFA relys should e mounted on verticl surfce. The outline nd pneldrilling digrms re shown in Figures 6 through 9. Surfce mounting on steel pnels MOUNTING AND CONNECTIONS INSTALLATION 25 10 4 60 32 12 7.8 6.0 50 23 9 COLD HOT CYCLES AMPERES WATTS WATTS FREQ. VOLT DC COILS AC COILS TABLE II The urdens re mesured with the rely in the picked-up position nd t rted voltge. BURDENS The one second rting of the contct s circuit is 125 mps. 250 1 125 3 48 8 575 10 32 10 460 15 24 15 230 20 GEI-6871 9
GEI-6871 9 MAINTENANCE ADJUSTMENTS Co ntcts HFA53 contct circuits cn e chnged from circuit-opening to circuit-closing, or vice vers, y removing the fixed contct, turning it over nd replcing it. If for ny reson it ecomes necessry to redjust the contcts, for instnce, if contct is chnged from circuit opening to circuit closing, the following checks nd djustments should e mde: 1. Mke sure tht ll contct nd coil studs re tight. 2. Mke sure tht the rmture is free of inding when operted y hnd. The rided pigtil led on ll contcts must e djusted to exert minimum force on the contcts. 3. Mke mechnicl contct djustments s follows: Normlly-Open Contcts Wipe nd Gp (Normlly-Open contcts shll e dj usted efore normlly-closed contcts). A. The moving contct rms shll e djusted so tht the normlly-open contcts mke pproximtely simultneously (.008) when the rely is operted y hnd. All normlly-open contctshll hve wipe of 3/64 to 3/32 inches. The contct gp shll e pproximtely 7/32 inch. This cn e djusted s follows: ) Insert 0.058 gge etween the rmture nd pole fce nd close the rmture. ) Bend the left-hnd moving contct to just light the continuity lmp. c) Remove the 0.058 gge nd where necessry end the remining moving contcts so tht ll moving contcts mke t pproximtely the sme time. d) To check performnce, turn the stop screw in until one contct continuity lmp is lit. Turn stop screw in n dditionl 1/2 turn nd ll continuity lmps should e lit. Bck off the stop screw to otin t lest 1/4 inch contct gp. e) Insert 7/32 inch gge etween ny of the normlly-open moving nd sttionry contcts nd turn the stop screw clockwise until the continuity lmp lights. Lock the stop screw in this position with the locking nut. 5
spring. Adjustments cn e mde s follows: formtion of the sttionry contcts nd the strength of the control operted y hnd. The wipe nd gp re utomticlly set y the contcts mke pproximtely simultneously (+.008) when the rely is A. The moving contct rms shll e djusted so tht the normlly-closed Normlly-Closed Contct Gp nd Wipe 6 Fine silver contcts should not e clened with knives, files or rsive pper or cloth. flexile strip of metl with n etched roughened surfce, resemling in effect, superfine e removed rpidly nd thoroughly. file. The polishing ction is so delicte tht no scrtches re left, yet corroded mterils will In clening fine silver contcts flexile urnishing tool should e used. This consists of CONTACT CLEANING time my e ltered y djustment of the rmture stop screw. ms) or less when rted voltge is pplied cross the resistor nd rely coil comintion. This The HFAS3K, HFA53M, HFA53N, nd HFA53T relys should pick up in eight milliseconds (8 Pick-Up Time when the coil is deenergized on the self-reset models. After the rely hs een mounted, it should e operted few times to e certin tht the mechnism opertes freely, nd tht the contct surfces lign properly nd open quickly the rmture tilpiece. pickup or counterclockwise to lower pickup, nd then reseted in the hexgonl groove in to redjust the rely, the djusting nut should e lifted 1/16 inch, turned clockwise to rise 60% of rting for DC coils. Normlly these djustments should not chnge; if it is necessry The relys re djusted t the fctory to pick up t 80% of the rting for AC coils nd Pickup It is essentil tht AC relys e quiet when the voltge is ove pickup. 4. Recheck pickup fter the ove chnges or djustments hve een mde. this position. gp etween the stop screw nd rmture. Lock the stop screw in c) Turn the stop screw Clockwise until there is n pproximtely 1/8 ) Turn the stop screw n dditionl 1/2 turn clockwise. All normllyclosed contcts should e open. opens. ) Turn the stop screw clockwise until the first normlly-closed contct GEI-6871 9
RENEWAL PARTS When ordering renewl prts, ddress the nerest Sles Office of the Generl Electric Compny, specify quntity required, nme of prt wnted, nd give complete nmeplte TABLE III dt. Refer to puliction GEF-2757. i = Normlly-closed contct, long wipe l = Normlly-open contct, long wipe 0 POSITION GEI-6871 9 RELAY C CONTACT ARRANGEMENT D E 1 2 3 4 5 6 HFA53B 1 l i l i l i 2 l l i i i l HFA53D 1 i l i l i 2 i l i l i 3 i l l l i 4 i l l l i HFAS3E 1 l i l l 2 l i l i 3 l i l i HFA53F 1 i l i 2 i l l 3 i l i 4 l l i 5 i l l 6 i l l 7 i l l 8 i l l HFA53H 1 l i 2 l i 3 l i 4 l i 5 l i HFAS3J 1 2 3 4 5 6 l i = Normlly-open contct = Normlly-closed contct i i i i 7
C CONTACT ARRANGEMENT TABLE Ill 8 i = Normlly-closed contct, long wipe = Normlly-closed contct l = Normlly-open contct, long wipe = Normlly-open contct 3 i 2 i 3 i HFA53M 1 hi i HFA53N 1 i HFA53T 1 i 2 i 3 l i l i 2 l i l i HFA53R 1 l i l i 2 i 3 hi HFA53L 1 hi 2 i 3 i 5 i H FA 53K D : RELAY 0 POSITION E 1 2 3 4 5 6 1 i GEI-6871 9
ll U GEI-6871 9 HFA53N HFA53R, HFA53T Relys (Bck View) Figure 5 (459A231 Sh 1191) Internl Connections for HFA53K, HFA53M, I LO OPER. CO I L fl._ext. RESISTOR HFA53F, HFA53H, HFA53J nd HFAS3L Relys (Bck View) Figure 4 (6375767-3) Internl Connections for HFA53B, HFA53D, HFAS3E, 0- P0s. Fr P05. P05. 3 2 -o 0PR. CDI L -o 12 10 conns. I NTERNAL CONNS. (BACK VIEW) 9
GEI-6871 9 A DIA.HOLES(14 HOLES) 21 OUTLINE PANEL DRILLING (FRONT VIEW) T(PE OF PANEL INSULATING STEEL 7116 19/161 1-/1 Figure 6(459A231Sh1 [91) Outline nd Pnel-Drilling Dimensions for HFAS3 Surfce-Mounted Relys (Typicl Model Numer is HFA53B(-) 10
11 Figure 7 (418A799 Sh.1 [8]) Outline nd Pnel-Drilling Dimensions for HFA53 Relys for Semi-flush Mounting (Typicl Model Numer is HFA53K(-)F) OUTLiNE F AHEL DRILLINU GEI-68719
I?E LA7 BC-3197(500) GENERAL ELECTRIC PROTECTION AND CONTROL BUSINESS DEPT., MALVERN, PA 19355 * Indictes reiision HFA53K, HFA53M, HFAS3N, HFAS3R nd HFA53T Relys * Figure 9 (389A752 2j) Outline of Externl Resistor Used with -r- F CAL) hole D- T Front-Connected Relys, (Typicl Model Numer is HFA53B(-)H) Figure 8 (104A8527-5) Outline nd Pnel-Drilling Dimensions for HFA53 14 DPILLTNG PANEL --2-HOLES) WA. g GEI-68719