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IB01602046E

Instruction Booklet

Page

 

12

Effective:  July  2010

2-Position Contactor Based 

Non-Automatic Transfer Switch

4.3 Mounting Procedure

All equipment enclosures and power panels are of the same 

design.  Only the overall physical dimensions change.  Note that 

the enclosure is provided with four teardrop (elongated) mounting 

holes, two in the top mounting flange and two in the bottom.

Cable entry holes are not part of the enclosure when shipped 

from the factory and must be provided in the field, either before 

or after mounting the enclosure. Cable access may be from the 

top, bottom, and/or side.  

Figure 10.Typical (40A-400A) Contactor Based Non-Automatic 

Transfer Switch Equipment (Door Open).

With the enclosed non-automatic transfer switch equipment 

unpacked and ready for mounting, proceed with the following 

steps.

Step 1:

The non-automatic transfer switch enclosure door is 

hinge mounted with removable hinge pins.  To simplify 

the mounting procedure and avoid damaging the door-

mounted logic panel, it is strongly suggested that the 

door be carefully removed and put it in a safe place until 

mounting is complete.  To remove the door, open the 

door and label and disconnect the wiring at the back of 

the logic panel.  Remove the wire ties 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 mounting bolts in the mount-

ing surface.

Step 3:

Gently lift the enclosure and guide the teardrop holes in 

the upper mounting flange over the upper mounting 

bolts.  Do not completely tighten the bolts at this time.

Step 4:

While still supporting the enclosure, install the two lower 

mounting bolts in the lower mounting flange.  Again, do 

not completely tighten the bolts at this time.  Use shims, 

if required, to prevent deformation of the enclosure if the 

mounting surface is distorted.

Step 5:

Tighten all four mounting bolts after any required shim-

ming is completed.

Figure 11.Typical Mounting of the Non-Automatic Transfer 

Switch to a Mounting Surface.
Step 6:

Double check to ensure that all packing and shipping 

materials have been removed.

CAUTION

SINCE THE ENCLOSED NON-AUTOMATIC TRANSFER SWITCH 

MUST BE LIFTED INTO PLACE FOR MOUNTING, BE CERTAIN THAT 

ADEQUATE RESOURCES ARE AVAILABLE FOR LIFTING TO AVOID 

PERSONNEL INJURIES OR EQUIPMENT DAMAGE.

CAUTION

EXTREME CARE SHOULD BE TAKEN TO PROTECT THE TRANSFER 

SWITCH FROM DRILL CHIPS, FILINGS, AND OTHER CONTAMI-

NANTS WHEN MAKING THE CABLE ENTRY HOLES.  EXTREME 

CARE SHOULD ALSO BE TAKEN WHEN MOUNTING THE ENCLO-

SURE TO PREVENT COMPONENT DAMAGE OR A FUTURE MAL-

FUNCTION.

POWER PANEL

LOGIC PANEL

TRANSFORMER

VOLTAGE 

PANEL

SELECTION

AND

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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