Communication Connections; Generator Ac Connection System - Briggs & Stratton Fortress Installation And Operation 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
3 Normally Closed
Transfer Switch
4
Communication
Transfer Switch
5 Communication
Ground
6 +LED
Ground
7
8 Not Used
25 Utility
26 Utility

Generator AC Connection System

A single-phase, three-wire AC connection system is
used in the standby 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.
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.
Wire Type
18 AWG [1 mm 2 ] twisted pair conductors no longer than
61 m, 300V, 90 o C copper wire
18 AWG [1 mm 2 ] twisted pair conductors no longer than
61 m, 300V, 90 o C copper wire
18 AWG [1 mm 2 ] twisted pair conductors no longer than
61 m, 300V, 90 o C copper wire
18 AWG [1 mm 2 ] twisted pair conductors no longer than
61 m, 300V, 90 o C copper wire
18 AWG [1 mm 2 ] twisted pair conductors no longer than
61 m, 300V, 90 o C copper wire
18 AWG [1 mm 2 ] twisted pair conductors no longer than
61 m, 300V, 90 o C copper wire
18 AWG [1 mm 2 ] twisted pair conductors no longer than
61 m, 300V, 90 o C copper wire
N/A
14 AWG [2.5 mm 2 ] minimum 300V wire
14 AWG [2.5 mm 2 ] minimum 300V wire
Connect To
For Optional Alarm
For Optional Alarm
For Optional Alarm
4 (T/R) on transfer
Must Connect
switch board
5 (GND) Ground on
Must Connect
transfer switch board
Red wire on fault For Optional Fault
indicator plate
Black wire on fault For Optional Fault
indicator plate Indication Ground
N/A
Transfer Switch
Must Connect
Utility
Transfer Switch
Must Connect
Utility
33
22
Circuit
Breaker
11
44
From Alternator Power Windings
44
22
0
Circuit
Breaker
L2
N
To Transfer Switch
Notes
Indication
N/A
Neutral
120V
120V
240V
11
L1
21