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Emerson 381333230 - page 1
381333–230 C 50 Hanove r Road, F lorham Park, New J ersey 07932–1591 USA For sales or service call 1 800 800–2726 (A SCO ) www.ascopower .com AS CO PO WER TECH NO LOGI E S CA NA DA PO Box 1238, 17 Airport R oad, Brantf ord, O ntario, Can ada N 3T 5T3 telephone 519 758– 8450, f ax 519 758– 0876, f or service ca ll 1 888 234–2726 (A SCO ) ...
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Emerson 381333230 - page 2
Ca talo g Number Iden tifica tion T ypical A SCO 386 catal og no. for solid neutral, 3 pole, 150 amp, 480 V , N–A TS in T ype 1 enclosure: D 386 A 3 150 N 1 C Phase Poles Neutral A –s o l i d C – ove rlappi ng Amperes Vo l t a g e Cont rolle r Enclo sur e B –s w i t c h e d 1 –s t a n d a r d G –t y p e4 C –t y p e1 F –t y p e3 R L ...
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Emerson 381333230 - page 3
Ca talo g Number Iden tifica tion T ypical A SCO 386 catal og no. for solid neutral, 3 pole, 230 amp, 480 V , N–A TS in T ype 1 enclosure: D 386 A 3 230 N 1 C Phase Poles Neutral Amperes Vo l t a g e Con tro ller Enclo su re 1 –s t a n d a r d G –t y p e4 C –t y p e1 F –t y p e3 R L –t y p e1 2 3 –t h r e eØ 2 –s i n g l eØ D 220 ...
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Emerson 381333230 - page 4
SECT ION 1 INST ALLA TION 1 --- 1 A SCO 386 Non– A utomatic T ransfer Switc hes are factory wired an d tested. Ins tall ation requir es s kid rem oval then securing the enclosure to the supporting foundati on. Mounting R efer to the applicable enclosure outline drawing fur- nished w ith this sw itch and m ount the Ser ies 3 00 acc ordin g to deta ...
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Emerson 381333230 - page 5
INST ALLA TI ON (continued) 1 --- 2 F unctio nal T est The F unctional T est cons ists of three chec ks: manu al operation, v oltag e ch ecks, an d elec trical operation. Do these che cks in the orde r pres ented to avo id dama ging the non–a utomatic transfer switch. R ead all instructions on the W iring Diagram a nd labels affixed to the autom ...
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Emerson 381333230 - page 6
INST ALLA TI ON (continued) 1 --- 3 F unctio nal T est (cont inued) 2–V o l t a g e C h e c k s First check nameplate on the transfe r switch for ra ted vol tage. I t shoul d be th e same as the norm al and emerg enc y line vol tages. Use extreme caution when usi ng a meter to m ea sure volta g es in the f o ll o wing steps. Do not touch power te ...
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Emerson 381333230 - page 7
SECT ION 2 SEQUENCE OF OPERA TION 2 --- 1 Co nt ro ller Co de 1 Re f e r t o Section 5, Optional A ccess orie s for add itional control f unction s. Re fe r t o Wiring Dia gram furnis hed wit h t he ASCO 386. Note Control F eatures furnish ed on t his swit ch , and review operation. Tr a n s f e r Cont ro l Tr a n s f e r To Normal Tr a n s f e r T ...
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Emerson 381333230 - page 8
SECT ION 3 TEST ING & SERVIC E 3 --- 1 PREVENTIV E MAINTENANCE R easonab le car e in preve ntive m ainten ance wil l in sur e high reliabilit y and long l ife f or the switch. An a nnual preventi ve mainte nance program is recom mended. AS C O S e rv i c e s , In c . ( AS I) i s AS C O Pow e r T echnolog ies’ s nati onal service organi zation ...
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Emerson 381333230 - page 9
TEST ING & SERVIC E (continued) 3 --- 2 MAN U AL L OAD T RANSFE R This pr oc edure w il l m anual ly tr ansfe r the l oad if the Controller is di sconnected. Do no t manua ll y op erate the transfer switch until both po wer so urces are disconnected. 1. Open normal a nd e mergency source circuit breake rs. 2. Use manual handl e to man uall y op ...
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Emerson 381333230 - page 10
SECT ION 4 ADJUST MENTS 4 --- 1 Senso r Adjustments V oltage and frequency sensor pickup and dropout points are factor y set as specified on the W irin g Diagr am. The frequency se tti ng can be set for 50 or 60 Hz .. T o c hange this settin g, follow the proced ure bel ow. Use T abl e 4-1 for the setting and correspon ding DIP switc h actuator. Do ...
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Emerson 381333230 - page 11
SECT ION 5 OPTIONAL FEA T URES 5 --- 1 MOTO R L O AD TRA NSF ER Inphase monitori ng logic cont rol s trans fer and retrans fer of motor loads, so that i nrush currents do not exceed normal st arti ng current s. It avoi ds nui sance tri pping of circ uit breaker s and mechan ical dam ag e to m otor coup li ngs. The Motor Load T r ansfer featur e is ...
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Emerson 381333230 - page 12
INDEX Printed in U .S.A. Copy right - - - ASCO Power T echnologies, L.P . 2007 A auxil iary c ircu its, 1–2 B barriers, 1–2 C cable lugs, 1–1 prepar ation, 1–1 spacers, 1–1 illustration of, 1–1 cat alo g nu mber, ins id e cov er cleaning, 3–1 connections line, 1–1 cont ro lle r cover removal, 4–1 disconnecting, 3–1 D DIP Sw itch ...
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