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O & M Manual for 2-Position Contactor
Based Non-Automatic Transfer Switch
Instruction Booklet
Description
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Receiving, Handling, and Storage . . . . . . . . . . . . . . . . . . . 6
Equipment Description . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Installation and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Testing and Problem Solving . . . . . . . . . . . . . . . . . . . . . . .17
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Renewal Parts Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
IB01602046E
Page
For more information visit: www.eaton.com
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Summary of Contents for Eaton NTCEC2X20400WRU
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Page 1: Table Of Contents
Renewal Parts Guide ......19 Non-Automatic Transfer Switch Quick Start Instructions . . .20 IB01602046E For more information visit: www.eaton.com... -
Page 2: Introduction
In no event will Eaton be responsible to the purchaser or user in contract, in tort (including negligence), strict liability or... - Page 3 Source 1 power source is non- 1.2.1 Design Configuration automatic (electrically operated). See Figure 2. The Eaton contactor based non-automatic transfer switch is a compact design that uses a power contactor to transfer essential loads from one power source to another (Figure 3 [100A]).
- Page 4 NT C 0400 W R U The catalog number NTCEC2X20400WRU describes a non-auto- matic transfer switch with a 2 pole, 2 position Power Contactor mounted on a baseplate within the enclosure. The intelligence represented by the logic panel is Electromechanical. The continu- ous current rating of this equipment is 400A and applicable at 240 Vac, 60 Hz.
- Page 5 A source is defined as “available” when it is within its undervolt- age/overvoltage/ underfrequency/overfrequency (if applicable) setpoint ranges for the nominal voltage and frequency setting. Connected Connected is defined as when the input is shorted by an external contact or connection. IB01602046E For more information visit: www.eaton.com...
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Page 6: Receiving, Handling, And Storage
Record any external and internal damage for reporting to the transportation carrier and Eaton, once a thorough inspection is complete. All claims should be as specific as possible and include the catalog and General Order numbers. -
Page 7: Equipment Description
The main contacts connect and 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 simultaneously. IB01602046E For more information visit: www.eaton.com... - Page 8 Source 2 when Source 2 is at sufficient voltage and frequency. Conversely it also provides ability to transfer from Source 2 to Source 1 when Source 1 is at sufficient voltage and frequency. It also provides indication for source availability and switch posi- tion. For more information visit: www.eaton.com IB01602046E...
- Page 9 3.5.2 Optional Features The following is a list of the optional features for the non-auto- A variety of standard and optional features are available for Eaton matic transfer switch. All features or combinations of features non-automatic transfer switches. All features or combinations of...
- Page 10 Cable entry holes are the responsibility of the customer. For more information visit: www.eaton.com IB01602046E...
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Page 11: Installation And Wiring
How- National Electrical Code; and/or ever, Eaton offers optional enclosure designs that can be used in special environments. If there are any doubts as to a location’s c. In legally required standby systems in accordance with suitability, discuss them with your Eaton representative. - Page 12 Switch to a Mounting Surface. VOLTAGE SELECTION Step 6: Double check to ensure that all packing and shipping TRANSFORMER PANEL materials have been removed. Figure 10.Typical (40A-400A) Contactor Based Non-Automatic Transfer Switch Equipment (Door Open). For more information visit: www.eaton.com IB01602046E...
- Page 13 #4-600 KCMIL or (2) 1/0-250 KCMIL 1 or 2 - depending on wire size used 75 (167) #4-600 KCMIL or (2) 1/0-250 KCMIL 1 or 2 - depending on wire size used 75 (167) #2-600 KCMIL 75 (167) IB01602046E For more information visit: www.eaton.com...
- Page 14 Step 3: Reinstall the cover and tighten the six screws. CAUTION WHEN CHANGING THE VOLTAGE, ONE WIRE MUST BE MOVED ON THE PRIMARY TAPS OF BOTH TRANSFORMERS. Figure 12B. Standard Voltage Selection Panel. Figure 12. For more information visit: www.eaton.com IB01602046E...
- Page 15 Step 3: Once the screwdriver is in place, obtain a stripped wire (strip about 1/4 in.) and insert it into the larger circular wire hole. Push the wire in until it can go no further. IB01602046E For more information visit: www.eaton.com...
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Page 16: Operation
Since an intelligence circuit is not part of the non-automatic transfer switch design, operation of the 2-position selector switch Figure 17. Non-Automatic Transfer Switch Manual Operating mentioned above (Figure 18) is required each time an electrical Handle in Use. transfer is required. For more information visit: www.eaton.com IB01602046E... -
Page 17: Testing And Problem Solving
Non-Automatic Transfer Switch Section 6: Testing and Problem Solving If a problem persists after having completed the problem solving procedure, contact an Eaton representative for further assis- tance. When calling for assistance, the following is the minimum 6.1 Testing information required to properly address the need: After the non-automatic transfer switch equipment is initially 1. -
Page 18: Maintenance
Carefully remove the arc chute clips using needle nose pliers. Remove the arc chutes to inspect the contacts. Contact Eaton Care (1-877-ETN-CARE, Option-2) if the contacts have excessive wear. Reinstall the arc chutes and arc chute clips, making sure the ends of the clips are fully seated in the grooves on the barriers. -
Page 19: Renewal Parts Guide
Section 8: Renewal Parts Guide 8.1 General Example: To order the transformer pack for an NTCEC2X20400WRU transfer switch, order Catalog Refer to Figure 20 for assistance with selecting and ordering Number as shown in Figure 20, below. selected non-automatic transfer switch renewal parts. For more information, please see Renewal Parts Publication (RP01603002E). -
Page 20: Non-Automatic Transfer Switch Quick Start Instructions
(TN), Source 1 or utility supply (NN), and Source 2 or generator supply (EN). Refer to Figure 22 for the location of all parts discussed in this document. *Load cables MUST be connected and torqued BEFORE installing the SUPPLY cables (Figures 22). For more information visit: www.eaton.com IB01602046E... - Page 21 Step 5: Turn 2-position selector switch to "Source-1" position and verify that "Source 2 ON" light should turn ON. and verify that "Source 1 ON" light should turn ON. Step 6: Turn the Utility (Source 1) power OFF. IB01602046E For more information visit: www.eaton.com...
- Page 22 Instruction Booklet 2-Position Contactor Based Page 22 Effective: July 2010 Non-Automatic Transfer Switch Notes: For more information visit: www.eaton.com IB01602046E...
- Page 23 Instruction Booklet 2-Position Contactor Based Effective: July 2010 Page 23 Non-Automatic Transfer Switch Notes: IB01602046E For more information visit: www.eaton.com...
- Page 24 DEALING OR USAGE OF TRADE, ARE MADE REGARDING 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 conse-...
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