Eaton NTCEC2X20400WRU, O & M Manual

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IB01602046E For more information visit: www.eaton.com
Instruction Booklet
Effective: July 2010 Page 5
2-Position Contactor Based

Non-Automatic Transfer Switch
Table 2. Transfer Switch Catalog Number Explanation
1.4 Environmental Conditions
1.4.1 Operational Conditions
Normally, a non-automatic transfer switch is applied indoors in
an electrical equipment room. In the appropriate enclosure, it
can be used for outdoor applications where the equipment is
subject to falling rain, freezing temperatures, and no greater than
90% humidity (non-condensing). The ambient temperature
range for operation is between -20 and 70°C (-4 to 158°F).
1.5 Glossary
With respect to their use within this document and as they relate
to transfer switch and controller operation, the following termi-
nology is defined.
Available 
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.
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).
Source 2

Source 2 is the secondary source (emergency source, emer-
gency power source, emergency, standby, or backup source).
Transfer 
Transfer is defined as a change of the load connection from the
Source 1 to the Source 2 power source.
Unconnected 
Unconnected is defined as when the input is not shorted by an
external contact or connection.
POSITIONS 1 TO 2 POSITION 3 POSITION 4 POSITIONS 5 TO 6
BASIC DEVICE SWITCHING DEVICE CONTROL PANEL SWITCHING DEVICE
Non-Automatic Transfer Switch NT Contactor C Electromechanical E 2 Position Power Contactor C2
POSITION 7 POSITION 8 POSITIONS 9 TO 12 POSITION 13 POSITION 14 POSITION 15
SWITCHING DEVICE
ARRANGEMENT
NUMBER
OF POLES
AMPERE
RATING
VOLTAGE/
FREQUENCY ENCLOSURE LISTING
Fixed Mount X Two ( 2) 40A – 0040 208 Vac/60 Hz B Type 1 S UL/CSA Listing U
Three ( 3) 80A – 0080 220 Vac/50 Hz G Type 12 J No Listing X
Four (4) 100A – 0100 240 Vac/60 Hz W Type 3R R
150A – 0150 380 Vac/50 Hz H Open K
200A – 0200 415 Vac/50 Hz O
*225A – 0225 480 Vac/60 Hz X
*260A – 0260 600 Vac/60 Hz E
*400A – 0400
*For 225A to 400A, 600 Vac application, please refer to IB01602047E