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Low Voltage connections to signal fault contacts and for transfer switch communication are made via a field connection
terminal block in control board area. Compare this illustration with your generator to familiarize yourself with the location of
these connections.
System Connectors
A - Two Pin Terminal Block — Used to connect utility 240
VAC from fuse block in ATS to the control board. Connect
only one wire per terminal.
B - Fault Contacts — Use NO, COM and NC to hook up a
siren, light, etc. to alert you in case of a fault. Contacts
reverse state (NO goes to NC and vice versa) upon a
fault condition.
C ‑ Transfer Switch Communication (TxRx and TxRx
GND) — Connect to transfer switch control board for
communication interface using 18AWG twisted pair
wire.
- +LED and GND Connection — Not required for included
wireless monitor. Available for optional hardwired remote
system status panel accessory, #6154.
E - Eight Pin Terminal Block — Used to connect signal wires
to the control board. Connect only one wire per terminal.
F - Power Connection (Line 1 and Line 2) — Power
connection to transfer switch.
G - Neutral and Ground Connection — Connect to transfer
switch neutral and ground
LINE 1
LINE 2
GROUND
NEUTRAL
]
]
UTILITY A
UTILITY B
NO
COMM
NC
TxRx
TxRx GND
+LED
GND
N/C
]
]
]
A
B
C
D
E
F
G
G
F
E
D
C
B
A
• For power output connection (Line 1, Line 2, Neutral, and Ground), refer to the following table:
Power output connections
minimum 300V, 75°C
30 kW
1/0 Copper
3/0 Aluminum
• Reference NEC 2011 table 310.15 (B) (16)
• Use National Electrical Code for correction factors and wire size calculations.
• For utility circuit connection (Utility A and Utility B) use #14 AWG minimum 300 volt wire.
• For transfer switch communication use #18 AWG twisted pair conductors, no greater than 200 ft in length, 300 volt wire.
• When connecting to the terminal block, fasten only one wire to each connector screw.
• Torque terminal block screws to 4.4 in-lb (0.49 Newton meter).
• Torque circuit breaker connections to 45 in-lb (5 Newton meter).