Communication Connections; Generator Ac Connection System - GE 040374 Installation And Start-Up Manual

Communication Connections

Connect the applicable communication leads to the
automatic transfer switch as shown in the table below.
Pin
Description
Number
1 Normally Open
2 Common
Normally Closed
3
4 Transfer Switch Communication
Transfer Switch Communication
5
Ground
+LED
6
7 Ground
8 Not Used
25 Utility
26 Utility
* Metric system rounded for simplicity

Generator AC Connection System

A single-phase, three-wire AC connection system is used in
the home generator. The stator assembly consists of a pair
of stationary windings with two leads brought out of each
winding. The junction of leads 22 and 33 forms the neutral
lead, as shown schematically and as a wiring diagram. A
complete schematic and wiring diagram can be found later
in this manual.
33
22
11
44
26
18 AWG [1 mm²] twisted pair conductors no longer than
61 m, 300V, 90°C copper wire
18 AWG [1 mm²] twisted pair conductors no longer than
61 m, 300V, 90°C copper wire
18 AWG [1 mm²] twisted pair conductors no longer than
61 m, 300V, 90°C copper wire
18 AWG [1 mm²] twisted pair conductors no longer than
61 m, 300V, 90°C copper wire
18 AWG [1 mm²] twisted pair conductors no longer than
61 m, 300V, 90°C copper wire
18 AWG [1 mm²] twisted pair conductors no longer than
61 m, 300V, 90°C copper wire
18 AWG [1 mm²] twisted pair conductors no longer than
61 m, 300V, 90°C copper wire
14 AWG [2.5 mm²] minimum 300v wire
14 AWG [2.5 mm²] minimum 300v wire
Neutral
120V
120V
Circuit
Breaker
240V
Wire Type
N/A
NOTICE Neutral is not bonded to ground at generator.
NOTICE Generator must be used with only an UL approved
transfer switch that is compatible with the generator.
22
Connect To
4 (T/R) on transfer switch board
5 (GND) Ground on transfer
switch board
Red wire on fault indicator plate
Black wire on fault indicator plate
N/A
Transfer Switch Utility
Transfer Switch Utility
33 44 11
Circuit
Breaker
N L2 L1
Notes
For Optional Alarm
For Optional Alarm
For Optional Alarm
Must Connect
Must Connect
For Optional Fault
Indication
For Optional Fault
Indication Ground
N/A
Must Connect
Must Connect
0