Power Connections - GE Zenith Controls ZTX Operation And Maintenance Manual

Installation
Turn OFF all power before installation, adjustment, or removal of transfer switch or any of its components.

Power Connections

GE Zenith transfer switches are supplied with UL listed
solderless screw type terminals as standard for the
Normal, Emergency and Load power connections.
Table 1 lists the number and sizes of cable lugs supplied
as standard for each switch amp rating.
Switch Size
Utility, Generator and Load Terminals
(Amps)
Cable Per Pole
40
80
100
150
200, 225, 250*
300, 400
Table 1
* IEC Rating Only
SWITCH
POSITION
INDICATOR
■ ■
2
ZTX Operation and Maintenance Manual (72 R -1000)
(cont'd)
DANGER
HAZARDOUS VOLTAGE
(Can Cause Severe Injury or Death)
Screw Type Terminals for External Power Connections
Range of Wire Sizes
1 #8 to 3/0 AWG
1 #8 to 3/0 AWG
1 #8 to 3/0 AWG
1 #8 to 3/0 AWG
1 #6 AWG to 250 MCM
1 #4 AWG to 600 MCM
TERMINALS
T1
UTILITY
TERMINALS
N1
BR
N
E1
GENERATOR
TERMINALS
T = Load N = Utility E = Generator
Figure 1 - Power Panel
Connect the Normal, Emergency, and Load conductors
to the clearly marked terminals on the transfer switch.
Remove surface oxides from cables by cleaning with a
wire brush. Verify that all connections are correct before
tightening the lugs. All cable lug connections must be
tightened to the proper torque values as shown in Table 2.
: Do not run cables or wiring behind
NOTE
front-connected transfer switches.
Fully Rated Neutral Bar (When Required)
No. of Cables
3
3
3
3
3
3
LOAD
T2 T3
OPTIONAL A4 CONTACT TION
OPERATES WHEN IN ERAT
N2 N3
UTILITY POSITION ILITY
E3
E2
OPTIONAL A3 CONTACT TION
OPERATES WHEN IN ERAT
GENERATOR POSITION NERA
Range of Wire Sizes
#8 to 1/0 AWG
#8 to 1/0 AWG
#8 to 1/0 AWG
#8 AWG to 300 MCM
#6 AWG to 300 MCM
#4 AWG to 300 MCM
Tip!
Install
load
cables
first.
JP
GE Zenith Controls
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