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Descriptive  Bulletin 

41-123M 

Page 

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FRONT  VIEW 

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DIMENSIONS  ARE 

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Figure 

3. 

Outline  and  Drilling - Micro-51 

SIDE  VIEW 

STUD  NUrv-tBE RS 

(BACK  'vIEW! 

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PILOT  PLATE 

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ITAB  TO  REFR 

toi-£N  USCD) 

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(1'.85) 

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Figure  4.  Outline  and  Drilling  - Micro-51  in  FT-11  Case 

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PFM:l 

(16.28) 

DIf'£NSYONS  IN  IN:t-£S 

(D1I'£J1liIONS  IN 

"'ILLJI'I:TERS) 

QUTLlI'.(:  FI'ID  mILLING  rOR  RELAY  CASE  TYPE  n-II 

SuO  IQ 

57lJ7900 

August,  1991 

www 

. ElectricalPartManuals 

. com

Summary of Contents for MICRO-51

Page 1: ...ng Time Very Inverse Extremely Inverse Long Time Extremely Definite Time Inverse Short Time Inverse Wide current tap ranges with exceptional set ting resolution are offered 1 5 12A in 0 25A increments and 0 3 2 4A in 0 05A increments The time dial is adjustable from 1 to 10 in increments of 0 1 An instantaneous element is standard Instan taneous pickup is adjustable from 1 to 20 multi ples of the ...

Page 2: ...sh panel mounting_ The Flexitest switches provide ct shorting that allows the relay to be fully withdrawn from its case The switches and companion test plug allow tests to be performed to the relay in its case mounted in the panel 9697 06 05 3 92 1 f f eG TIME INST l i 15iti 3 1161099 TRI Al RM I TRIPBUS 1 I TYPICALFOR PHASES A B C AND NEUTRAL TRIPALARM Retrofit Kit The Micro 511FT design enables ...

Page 3: ...r for sensitive target coil 50 Hz or 60 Hz selectable by internal jumper Zero Unit is self powered Minus 20 C to Plus 70 C More than 2500V 1MHz bursts at 400 Hz repetition rate continuous ASNSI C37 90 1 SWC Fast transient test EMI test 2000 Vac 60 seconds all circuits to ground Unboxed 4 7 Ibs 2 1 kg Boxed 5 4 Ibs 2 3 kg Unboxed 7 8 Ibs 3 5 kg Boxed 9 6 Ibs 4 4 kg 0 26 cubic feet 0 48 cubic feet T...

Page 4: ...TAB TO REFR toi N USCD 158 DtA 1 85 101 0 5 1 QJTOUT Figure 4 Outline and Drilling Micro 51 in FT 11 Case T RI1IJrA fN f ITG ETAILS OR PRQJtq124 l ITe PILOT PLm 1ll INT ANl XU TOOTH t ttt tll U I lB 1Z SO IoI PROJ CTION t t RtJ JR tt EiT II ORID lED S T LY OR HIe L5 _ _ _ _ _ l 1 J1i 1 12 STUOS c _ S I OIR PFM l 16 28 DIf NSYONS IN IN t S D1I J1liIONS IN ILLJI I TERS I QUTLlI FI ID mILLING rOR REL...

Page 5: ... to catalog number Internal Connections 16D446A 10F446A Continuous Rating 4A _ 20A 4A 20A To place an order or for further information contact the nearest District Office Internal Connection Diagrams 16D446A Micro 51 Time Overcurrent Relay Drawout Test Case TA LDH IMPEDAN E SE IES TA GET tDIL Descriptive Bulletin 41 123M Page 5 CIRCUIT 8 SHIELD Gl Types MICRO 51 and MICRO 511FT Microprocessor Base...

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