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Effective December 2010
Supersedes October 2010
IL01301037EH04

Instructional Leaflet 

IL01301037E

Installation/removal instructions 

for Series NRX fixed and drawout 

secondary terminal blocks

 

 

 WARNING

(1) ONLY QUALIFIED ELECTRICAL PERSONNEL SHOULD BE PERMITTED TO 

WORK ON THE EQUIPMENT. 

(2) ALWAYS DE-ENERGIZE PRIMARY AND SECONDARY CIRCUITS IF A 

CIRCUIT BREAKER CANNOT BE REMOVED TO A SAFE WORK LOCATION.

(3) DRAWOUT CIRCUIT BREAKERS SHOULD BE LEVERED (RACKED) OUT TO 

THE DISCONNECT POSITION.

(4) ALL CIRCUIT BREAKERS SHOULD BE SWITCHED TO THE OFF POSITION 

AND MECHANISM SPRINGS DISCHARGED. FAILURE TO FOLLOW THESE 

STEPS FOR ALL PROCEDURES DESCRIBED IN THIS INSTRUCTION LEAFLET 

COULD RESULT IN DEATH, BODILY INJURY, OR PROPERTY DAMAGE.

 

 WARNING

THE INSTRUCTIONS CONTAINED IN THIS IL AND ON PRODUCT LABELS 

HAVE TO BE FOLLOWED. OBSERVE THE FIVE SAFETY RULES:

– DISCONNECTING

– ENSURE THAT DEVICES CANNOT BE

  ACCIDENTALLY RESTARTED

–  VERIFY ISOLATION FROM THE SUPPLY

–  EARTHING AND SHORT-CIRCUITING

–  COVERING OR PROVIDING BARRIERS TO

  ADJACENT LIVE PARTS

DISCONNECT THE EQUIPMENT FROM THE SUPPLY. USE ONLY 

AUTHORIZED SPARE PARTS IN THE REPAIR OF THE EQUIPMENT. THE 

SPECIFIED MAINTENANCE INTERVALS AS WELL AS THE INSTRUCTIONS 

FOR REPAIR AND EXCHANGE MUST BE STRICTLY ADHERED TO PREVENT 

INJURY TO PERSONNEL AND DAMAGE TO THE SWITCHBOARD.

Section 1: General information

A maximum of 27 terminal blocks providing 54 secondary 

contact points are available in one cradle on the NF Frame 

circuit breaker. The RF Frame circuit breaker is available with 

a maximum of 46 terminal blocks providing 92 secondary 

contact points in two individual cradles. The number of termi-

nal blocks mounted depends on a number of considerations, 

such as whether the circuit breaker is electrically or manually 

operated and how many features are required. For example, 

the shunt trip device has two leads and uses a single termi-

nal block. Other devices, such as a motor operator, has three 

leads and requires two terminal blocks. Each connection point 

is permanently identified. Terminal blocks can be individually 

mounted and hence contact positions may be empty.
For drawout circuit breakers, secondary terminal blocks are 

DIN rail mounted on the top front portion of the drawout cas-

sette. A cross connector can be used to tie adjacent contacts 

together for drawout configurations (

Figure 1

).

Figure 1. Drawout Terminal Block

Instructions apply to:

1600 NRX SUB-TITLE IMAGE  (12/15/2010)

Series NRX, Type NF Frame 
ANSI, UL1066, UL489/IEC, IZMX16, IZM91

Series NRX, Type RF Frame
IEC, IZMX40

4000 NRX RF DRAWOUT SUBTITLE IMAGE (12/15/2010)

Summary of Contents for Series NRX

Page 1: ...INSTRUCTIONS FOR REPAIR AND EXCHANGE MUST BE STRICTLY ADHERED TO PREVENT INJURY TO PERSONNEL AND DAMAGE TO THE SWITCHBOARD Section 1 General information A maximum of 27 terminal blocks providing 54 s...

Page 2: ...ed by squeezing two release tabs together with small needle nose pliers and pulling out Figure 4 Figure 4 Connector Plug Removal Customer wiring is done using tension clamp terminations Refer to manua...

Page 3: ...MM 1 24V SGF2 CMM 3 8 10 12 14 16 18 20 22 Step 5 Identify correct mounting location on fixed terminal block mounting plate for mounting fixed secondary terminal block First insert the bottom end of t...

Page 4: ...REASON ACCESSORY SECONDARY PLUGS DO NOT HAVE TO BE UNPLUGGED TO ADD OR REMOVE TERMINAL BLOCKS REFER TO FIGURES 3 AND 4 OF SECTION 1 AND THE ASSOCIATED COPY FOR ASSISTANCE WITH CONNECTING OR DISCONNECT...

Page 5: ...RF Frame Step 2 Remove the four mounting screws holding the termi nal block alignment bracket in place Figure 15 Step 2 Step 3 Carefully slide the alignment bracket out from between any mounted termi...

Page 6: ...positioned accurately Figure 18 Step 5 Step 6 Repeat Steps 4 and 5 until all terminal blocks are mounted and check to ensure they are positioned in the cor rect locations A small number of DIN rail m...

Page 7: ...t using the four screws removed previously in Step 2 Hand tighten the four mounting screws to complete the installation process Figure 22 Step 9 Step 10 To remove already mounted terminal blocks first...

Page 8: ...CONTRACT BETWEEN THE PARTIES In no event will Eaton be responsible to the purchaser or user in contract in tort including negligence strict liability or otherwise for any special indirect incidental o...

Page 9: ...ILE ABDECKEN ODER ABSCHRANKEN DAS GER T IST VOM NETZ ZU TRENNEN ES D RFEN NUR VOM HERSTELLER ZUGELASSENE ERSATZTEILE VERWENDET WERDEN DIE VORGESCHRIEBENEN WARTUNGSINTERVALLE SOWIE DIE ANWEISUNGEN F R...

Page 10: ...ker heraus gezogen wird siehe Abbildung 4 Abbildung 4 Entfernen der Anschlusstecker Kundenseitige Anschl sse werden mit Spannklemmen vorge nommen Siehe Handbuch MN01301001E AWB1230 1628 f r Anschlussd...

Page 11: ...Schritt 6 Schritt 7 Um einen Steuerleitungsanschlussblock zu ent fernen heben Sie die Halteklammer an ziehen Sie den Steuerleitungsanschlussblock nach vorne und heben Sie ihn heraus Der Verbindungsst...

Page 12: ...gssteckern des Schalters und der Steuerleitungsanschlussleiste der Kassette vertraut siehe Abbildung 1 Abschnitt 1 Anmerkung A Die Anschlusspositionen an den Steuerleitungsanschl ssen sind entsprechen...

Page 13: ...den Steuerleitungsanschlussblock auf die untere Anschlussleiste Abbildung 17 Schritt 4 Schritt 5 Lassen Sie den Steuerleitungsanschlussblock in die obere Anschlussleiste einschnappen Stellen Sie sich...

Page 14: ...hen Sie sie fest Abbildung 22 Schritt 9 Step 10 Um Steuerleitungsanschlussbl cke zu entnehmen entfenren Sie zuerst die Haltklemme Schritt 11 Um einen Steuerleitungsanschlussblock zu ent fernen setzen...

Page 15: ...rkway Moon Township PA 15108 United States 877 ETN CARE 877 386 2273 Eaton com 2010 Eaton Corporation All Rights Reserved Printed in USA Publication No IL01301037E Dezember 2010 PowerChain Management...

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