Supervisory Control Terminals
To avoid undesirable operation, we recommend loads be managed
only with low voltage or 50 Amp remote modules. DO NOT use
the transfer switch control board supervisory control terminals on
transfer switch control board (if present).
Interconnection Diagram
The illustration on the following pages shows a completed transfer
switch installation. Your actual layout may vary.
Illustration callouts are:
A1 - From Utility to First Service Panel
A2 - From Utility to Second Service Panel
B1 - Current Transformer
B2 - Current Transformer
C - Symphony™ II System Control Board
D - T/R and GND to Generator
E - CT Terminals
F - Transfer Switch Contactors
G - UTILITY 240VAC to Generator
H1 - Transfer Switch Neutral Terminal
H2 - Transfer Switch Neutral Terminal
J - Generator
K - Generator Ground Terminal
L - Generator Neutral Terminal
M - Generator Circuit Breaker
N - Ten pin Connector
P - Two pin Connector
R1 - Main Distribution Panel 1
R2 - Main Distribution Panel 2
S1 - Distribution Panel Neutral Bus
S2 - Distribution Panel Neutral Bus
T1 - Distribution Panel Ground Bus
T2 - Distribution Panel Ground Bus
U1 - Transfer Switch Ground Terminal
U1 - Transfer Switch Ground Terminal
V1 - Load Connections to Distribution Panel
V2 - Load Connections to Distribution Panel
W1 - Service Entrance Breaker - UTILITY 1
W2 - Service Entrance Breaker - UTILITY 2
X - Generator Disconnect
Y - Generator Connection
Z1 - Utility Connection
Z2 - Utility Connection
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