Eaton 520, Operating Manual

37

Instruction Leaflet

 IL01301051E

effective September 2013

Operating Manual for Series NRX  

Trip Units - Digitrip™ 520/520M

EATON 

www.eaton.com

Appendix F:  Typical breaker master connection diagram - RF

Figure 34. 

REVISION

A

1

8

7

B

6

5

C

D

8

7

65

4

3

TW

O PLA

CE DEC

ONE PL

AC

E DEC

DIMENSIONS IN INCHE

S

THREE PL

AC

E DEC

FORCE,

TO

RQUE,SPEED

RESIST

ANC

E

TIME TEMPER

AT

UR

E

AMPERA

GE

ANGLES VO

LT

AG

E

±3°C/±5°

F

±1

%

±10%

±2

%

TOOL RE

F

DSPEC

NEXT ASSY

±0.5

±10%

±5

%

±

±

±

APPD

ENGR RE

F

APPD

SPECIFIED

UNLESS 

OT

HER

WISE

DRAFTER/DESIGNER

SHEE

T NO

2008 Eaton 

Co

rporation,   All Rights Rese

rv

ed

OF

2

C

PA

RT

S LIST

SIZE

D

SCALE

TITL

E

DA

TE

DWG NO

PRODU

CT

 C

ODE

A

B

4

3

C

2

1

D

THIRD ANGL

E

PROJEC

TIO

N

SYMBOL DEFINITION

S

PER DRA

WING 65A275

0

X.X

X±X

X

DIMENSIONS 

TO

 BE INTERPRE

TED

IN 

ACCO

RD

ANCE 

WITH

EA

TO

N C

ORPORA

TION - 

CO

NFIDENTIAL AND PROPRI

ET

AR

Y

NO

TICE 

TO

 PERSONS RECEIVING 

THIS DOCUMENT AND/OR 

TECHNICAL INFORM

AT

IO

N

THIS DOCUMENT

, INCL

UDING 

THE DR

AW

ING AND INFORMA

TION 

CO

NT

AINED 

THEREON,

IS C

ONFIDENTIAL AND IS 

THE EX

CL

USIVE PROPER

TY

 OF EA

TO

N 

CO

RPOR

AT

ION, 

AND IS MEREL

Y ON 

LO

AN AND SUBJE

CT

 TO

 RECALL 

BY

 EA

TO

N 

AT

 ANY 

TIME.  

BY

 TA

KING POSSESSION OF 

THIS DOCUMENT

, THE RECIPIENT A

CKNOWLEDGES AND A

GREES 

THA

T THIS DOCUMENT CANNO

T 

BE USED IN ANY MANNER ADVERSE 

TO

 THE INTERESTS OF EA

TO

N AND 

TH

AT

 NO PORTION OF 

THIS DOCUMENT 

MA

Y BE 

CO

PIED OR 

OT

HER

WISE REPRODUCED 

WITHOUT 

THE PRIOR 

WRIT

TEN 

CO

NSENT OF EA

TO

N.  IN 

THE CASE OF 

CO

NFLIC

TING

CO

NTRA

CT

UA

L PROVISIONS, 

THIS NO

TICE SHALL GOVERN 

THE ST

AT

US OF 

THIS DOCUMENT

.

NRX BREAKER

MASTER 

CO

NNEC

TION DIA

GRAM

4000A

6D32424

RN SS-13687

12

6907

C.M.WERTZ

6-11-10

J.J.

MA

TS

KO

D.

AL

CHIER

0.1 0.02 0.005

DIELEC

TRIC

DISC

ONNE

CT

PL

UG

(LEFT SIDE OF CB)

2

1

4

3

2

1

AGND

3

RX+

RX-

TX+

TX-

SHUNT

TRIP UNI

T

UNDER VOL

TA

GE

TRIP

OVERCURREN

T

TRIP SWI

TC

H

PL

UG-IN 

AC

CESSO

RY

 TR

AY

N1

N2

4

3

2

1

PH4

N

PH1

A

PH2

B

PH3

C

4

3

2

1

4

3

2

1

4

3

2

1

K1

0K

16

K9

1

2

1

3

5

GFSGND2

GFSGND1

ALARM2

RELAY

COM

ALARM1

N

4 
3 
2 
1

1

2

5

6

1

1

2

5

6

2

5

6

K1

K2

K4

K3

AB

CN

K1

2

K5

IDENTIFICA

TION MODULE

K6 (24 PINS

)

TRIP UNIT PL

UG-IN C

ONNE

CT

OR

RA

TING

PL

UG

1

4

2

3

4

3

2

1

TA

+

GROUND FA

UL

T

SENSOR

SOURC

E

EXTERNAL NEUTRAL SENSOR

BREAK1

COM1

MAKE1

MAKE2

COM2

BREAK2

ST1

ST2

UV1

UV2

BRIDGE & FRAM

E

G2

G1

1

TO

P PI

N

(O

TS

)

+24VDC

3

4

1

2

(LEFT POLE)

(L

OC

AT

ED UNDER 

TRIP UNIT

)

K1

5

21

22

AGND

+24V

27

ZOUT

28

29

ZIN

ZCOM

30

NC

23

CMM1

CMM3

25

26

CMM4

24

CMM2

SGF2

19

20

SGF1

ARMS2

33

34

ARMS1

ALM1

ALM2

13

12

11

ALMC

14

OT1M

6

OT1B

7

5

OT1

C

OT2M

OT2B

8

10

9

OT2

C

ST1

1

2

ST2

UV1

3

4

UV2

16

15

N2

N1

18

17

G2

G1

6

5

N/

C

N/

C

4

3

MM_1

MM_2

(2X2)

(2X2)

(2X3)

5

6

3

4

3

4

3

4

1

4

5

8

(1X4)

(1X3)

N

24

6

N

13

5

J1

J2

J1

J2

(MCR)

31

32

30

VA

K1

7

(2X5)

2

3

1

4

5

6

VA

VB

VC

VN

DIGITRIP 1150

ONL

Y

8

9

10

42

ARCO

N3

41

40

ARCO

N1

ARCO

N2

ARCO

N_L

ARCO

N_T

ARCO

N_CMN

13

5

12

3

45

6

VA

VB

VC

VN

K17-

1

PT MODULE (DIGITRIP 1150 ON

LY

)

47

48

TO

 PT MODULE

TO

K17-

2

TO

K17-

3

TO

K17-

4

TO

45

LN

1

56

TP2

SEE NO

TE 

7

SEE NO

TE 

9

SEE NO

TE 

9

SEE NO

TE 11

SEE NO

TE 12

SEE NO

TE 

5

SEE NO

TE 13

Series NRX-RF frame (IZMX40/IZM95) breaker masoer cNnnecoiNn diagram drawing number 6D32424 (cNnoinued Nn nexo page)