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For more information visit: www.eaton.com

IB01602046E

Instruction Booklet

Page

 

2

Effective:  July  2010

2-Position Contactor Based 

Non-Automatic Transfer Switch

READ AND UNDERSTAND THE INSTRUCTIONS CONTAINED HEREIN-

AFTER BEFORE ATTEMPTING TO UNPACK, ASSEMBLE, OPERATE, 

OR MAINTAIN THIS EQUIPMENT.

HAZARDOUS VOLTAGES ARE PRESENT INSIDE TRANSFER SWITCH 

ENCLOSURES THAT CAN CAUSE DEATH OR SEVERE PERSONAL 

INJURY.  FOLLOW PROPER INSTALLATION, OPERATION, AND MAIN-

TENANCE PROCEDURES TO AVOID THESE VOLTAGES.

TRANSFER SWITCH EQUIPMENT COVERED BY THIS INSTRUCTION 

BOOK IS DESIGNED AND TESTED TO OPERATE WITHIN ITS NAME-

PLATE RATINGS.  OPERATION OUTSIDE OF THESE RATINGS MAY 

CAUSE THE EQUIPMENT TO FAIL RESULTING IN DEATH, SERIOUS 

BODILY INJURY, AND/OR PROPERTY DAMAGE.  ALL RESPONSIBLE 

PERSONNEL SHOULD LOCATE THE DOOR MOUNTED EQUIPMENT 

NAMEPLATE AND BE FAMILIAR WITH THE INFORMATION PROVIDED 

ON THE NAMEPLATE.  A TYPICAL EQUIPMENT NAMEPLATE IS 

SHOWN IN FIGURE 1.

Figure 1. Typical Non-Automatic Transfer Switch Equipment 

Nameplate.

All possible contingencies that may arise during installation, oper-

ation, or maintenance, and all details and variations of this equip-

ment do no purport to be covered by these instructions.  If further 

information is desired by the purchaser regarding a particular 

installation, operation, or maintenance of particular equipment, 

please contact an authorized Eaton Sales Representative or the 

installing contractor.

Section 1: Introduction

1.1 Preliminary Comments and Safety Precautions

This technical document is intended to cover most aspects asso-

ciated with the installation, application, operation, and mainte-

nance of the contactor based 2-position non-automatic transfer 

switch with ratings from 40 through 400 amperes (A).  It is pro-

vided as a guide for authorized and qualified personnel only.  

Please refer to the specific WARNING and CAUTION in Section 

1.1.2 before proceeding. If further information is required by the 

purchaser regarding a particular installation, application, or main-

tenance activity, please contact an authorized Eaton sales repre-

sentative or the installing contractor.

1.1.1 Warranty and Liability Information

No warranties, expressed or implied, including warranties of fit-

ness for a particular purpose of merchantability, or warranties 

arising from course of dealing or usage of trade, are made regard-

ing the information, recommendations and descriptions contained 

herein.  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 or consequential 

damage or loss whatsoever, including but not limited to damage 

or loss of use of equipment, plant or power system, cost of capi-

tal, loss of power, additional expenses in the use of existing 

power facilities, or claims against the purchaser or user by its 

customers resulting from the use of the information and descrip-

tions contained herein.

1.1.2 Safety Precautions

All safety codes, safety standards, and/or regulations must be 

strictly observed in the installation, operation, and maintenance 

of this device.

THE WARNINGS AND CAUTIONS INCLUDED AS PART OF THE PRO-

CEDURAL STEPS IN THIS DOCUMENT ARE FOR PERSONAL SAFETY 

AND PROTECTION OF EQUIPMENT FROM DAMAGE.  AN EXAMPLE 

OF A TYPICAL WARNING LABEL HEADING IS SHOWN ABOVE TO 

FAMILIARIZE PERSONNEL WITH THE STYLE OF PRESENTATION.  

THIS WILL HELP TO INSURE THAT PERSONNEL ARE ALERT TO 

WARNINGS, WHICH APPEAR THROUGHOUT THE DOCUMENT.  IN 

ADDITION, WARNINGS AND CAUTIONS ARE ALL UPPER CASE AND 

BOLDFACE.

COMPLETELY READ AND UNDERSTAND THE MATERIAL PRESENTED 

IN THIS DOCUMENT BEFORE ATTEMPTING INSTALLATION, OPERA-

TION, OR APPLICATION OF THE EQUIPMENT.  IN ADDITION, ONLY 

QUALIFIED PERSONS SHOULD BE PERMITTED TO PERFORM ANY 

WORK ASSOCIATED WITH THIS EQUIPMENT.  ANY WIRING 

INSTRUCTIONS PRESENTED IN THIS DOCUMENT MUST BE FOL-

LOWED PRECISELY.  FAILURE TO DO SO COULD CAUSE PERMANENT 

EQUIPMENT DAMAGE.

  

WARNING

  Cat No:     NTCEC2X20400WRU
Style No:

ASSEMBLED IN MEXICO
WITH U.S. COMPONENTS                                       30 - 43465

ITEM:  001

PIECE:  001

CS#:  123456

J050412234

Volts:  240

Poles:  2

Amps:  400

Phase:  1

Hertz:  60

Wire:  3

  GO No:      ABC0123

OF:  001

 

 

WARNING

  

CAUTION

Summary of Contents for NTCEC2X20400WRU

Page 1: ...utomatic Transfer Switch Instruction Booklet Description Page Introduction 2 Receiving Handling and Storage 6 Equipment Description 7 Installation and Wiring 11 Operation 16 Testing and Problem Solvin...

Page 2: ...llation application or main tenance activity please contact an authorized Eaton sales repre sentative or the installing contractor 1 1 1 Warranty and Liability Information No warranties expressed or i...

Page 3: ...ically electrical operation Conversely if con nected to Source 2 and Source 2 power source fails non auto matic transfer switch will remain connected to the Source 2 power source When Source 1 power s...

Page 4: ...ficant amount of relevant information that pertains to a particular piece of equipment The Catalog Number Identification Table Table 2 provides the required interpretation information An example is of...

Page 5: ...nection Re Transfer Re transfer is defined as a change of the load connection from the Source 2 to the Source 1 Source 1 Source 1 is the primary source normal source normal power source or normal Sour...

Page 6: ...dy for installation Once the top packaging is removed from the shipment the enclosure door can be opened A plastic bag of documents will be found in the enclosure usually attached to the inside of the...

Page 7: ...nd disconnect the load to and from the different power sources The power contactor is mechanically and electrically interlocked to prevent the two sets of main contacts from being closed simultaneousl...

Page 8: ...hown Connected to the 480 Vac Taps 3 4 Logic Panel The logic panel provides ability to transfer from Source 1 to Source 2 when Source 2 is at sufficient voltage and frequency Conversely it also provid...

Page 9: ...ontact This feature provides 1 dry form C contact that indicates the position of the Source 1 power switching device 15F Source 2 Position Indication Contact This feature provides 1 dry form C contact...

Page 10: ...480VAC by providing a low imped ance surge path to ground while supporting rated volt age It provides LED indication 3 6 Enclosure The rugged steel non automatic transfer switch enclosure is sup plie...

Page 11: ...on requires solidly mounting the enclosed unit and connecting power cables and auxiliary pilot circuits Physi cal mounting procedures and power cable connections are cov ered in this section All other...

Page 12: ...s securing the har ness to the inside of the door Carefully remove the hinge pins then the door from the enclosure Step 2 Install the required upper and lower mounting bolt anchors and the two upper m...

Page 13: ...lectrical procedures as outlined in Section 6 to verify that the equipment is installed and operating properly Table 4 Transfer Switch Equipment Wire Sizes WARNING POWER CONDUCTORS MAY HAVE VOLTAGE PR...

Page 14: ...ormers contained in a steel case mounted in the enclosure To change the voltage from the factory default 600 Vac follow the steps detailed below Step 1 Loosen the six screws securing the cover of the...

Page 15: ...inserting a small flathead screwdriver into the square tool hole with the flat surface of the screw driver against the back wall of the hole With a little bit of force push the screwdriver in on a sli...

Page 16: ...peration is accomplished by adding required indication lights and push buttons located on the front device panel to the operating mechanism of the 2 position contactor With the transfer switch connect...

Page 17: ...ddress etc 4 Company name 5 Name and position of individual representing company 6 Basic description of situation as it exists 7 Any results of problem solving steps taken and or readings taken Sectio...

Page 18: ...HIS EQUIPMENT DISCONNECT THE LINE POWER FROM THEN LOCK OUT IF POSSIBLE THE NEXT HIGHEST DISCONNECT DEVICE FAILURE TO FOLLOW THIS PROCEDURE COULD CAUSE SEVERE PERSONAL INJURY AND OR DEATH STEP ACTION a...

Page 19: ...tic Switch 480VAC 4 Pole Cat 68C8471G13 200A AG Switch up to 240VAC 2 Pole Cat 68C8471G01 200A AG Switch up to 240VAC 3 Pole Cat 68C8471G02 200A AG Switch up to 240VAC 4 Pole Cat 68C8471G03 400A Domes...

Page 20: ...ator Supply E1 E2 E3 For 4 pole transfer switches connect the load cables TN Source 1 or utility supply NN and Source 2 or generator supply EN Refer to Figure 22 for the location of all parts discusse...

Page 21: ...oltage on load terminals Step 5 Turn 2 position selector switch to Source 1 position and verify that Source 1 ON light should turn ON Step 6 Turn the Utility Source 1 power OFF Step 7 Start the genera...

Page 22: ...For more information visit www eaton com IB01602046E Instruction Booklet Page 22 Effective July 2010 2 Position Contactor Based Non Automatic Transfer Switch Notes...

Page 23: ...IB01602046E For more information visit www eaton com Instruction Booklet Effective July 2010 Page 23 2 Position Contactor Based Non Automatic Transfer Switch Notes...

Page 24: ...ION RECOMMENDATIONS AND DESCRIPTIONS CONTAINED HEREIN In no event will Eaton be responsible to the purchaser or user in contract in tort including negligence strict liability or otherwise for any spec...

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