Section 6: Electrical Connections; Generator Connections - Generac Power Systems 10 kW Owner's Manual

Electrical Connections

Section 6: Electrical Connections

Generator Connections

See Figure 6-1. The electrical wiring enclosure
is located behind an access panel on intake
end of unit. Remove intake side panel as
directed in Intake Side Panel
then remove access panel. Connect wires
according to diagram and tables.
Remove main AC / control wiring knock-
1.
out plugs from back of generator.
Using appropriate wiring hole, install con-
2.
duit and main AC and control wires
between generator and transfer switch.
Close unused hole with a NEMA 3R rated
3.
plug (field-supplied).
NOTE: All conductors must be rated for mini-
mum 300V. Control system interconnections
may consist of N1, N2, and T1, and leads 23
and 194. All of the generator control wiring cir-
cuits are Class 1 remote control or signaling
circuits. Class 1 circuits are required to be
installed in accordance with Part 1 of NEC
Article 300 and with a NEC recognized Chap-
ter 3 wiring method. The use of low voltage
cables for the generator control circuit wiring
is prohibited. See instruction manual of the
specific engine generator for wiring connec-
tion details. Recommended wire gauge sizes
for this wiring depends on wire length, as rec-
ommended in Table
Exception: Conductors of AC and DC cir-
cuits, rated 1000 volts nominal or less, shall
be permitted to occupy the same equipment,
cable, or conduit. All conductors shall have an
insulation rating equal to at least the maxi-
mum circuit voltage applied to any conductor
within the equipment, cable, or conduit. See
NEC 300.3(C)(1).
See 6-1. Strip insulation from wire
4. Figure
ends. Do not remove excessive insulation.
Route sense wires through supplied wire
tie (C1), and connect to sense wire termi-
nal block (B). Push down on spring loaded
connection point with a flat head screw-
driver, insert wire, and release.
Using the same process, route control
5.
wires through second supplied wire tie
(C2), and connect to control wire terminal
block (A).
When all wires are securely connected to
6.
correct terminals, tighten wire ties and clip
excess length.
NOTE: Only bare wire should be inserted into
each terminal. Do not insert any wire insula-
tion into terminals.
NOTE: Damage caused by mis-wiring of the
interconnect wires is not warrantable.
28
Removal, and
6-3.
Installation Guidelines for 60 Hz Air-Cooled Generators