Product Manual

Installation
8 Automatic Transfer Switch Owner’s Manual
3. Run the conductors from 2-pole, 100 Amp breaker
through conduit, or install power cable.
4. Connect utility (normal) power source cables to N1
and N2 terminals on the transfer switch
mechanism.
5. Connect the generator (standby) source power
cables to transfer switch terminals E1, E2.
6. Connect utility (normal) and generator ground
cables to ground connection and neutral cables to
the neutral bar.
7. Customer LOAD leads are not pre-wired at the
factory.
8. Neutral and Ground Bars Accept #4-#14 AWG Cu/
Al cable. If a larger Neutral or Ground Cable is
required for the Generator Connection, Please
utilize Lug Kit Siemens ECLK2 or Generac part
number 10000006293 which accepts #4-2/O Cu/Al
cable.
NOTE: Conduits must be properly supported. Cables
can also be installed. Cables and conductors must be of
approved insulative qualities and of the correct wire
gauge size in accordance with applicable codes. Torque
all lugs to the indicated torque settings with a calibrated
torque wrench or screwdriver.
Connecting Start Circuit Wires
Control system interconnections consist of N1, N2, and
T1, and leads 23, 194 and 0 (see Figure 3-2).
NOTE: Generac Type TC-ER-JP power and control tray
cable can be installed as permitted by the 2017 NEC.
Type TC-ER-JP cable contains color-coded power and
control conductors.
The generator control wiring is a Class 1 signaling circuit.
Reference instruction manual of specific engine
generator for wiring connection details. Screw heads are
straight bladed and cross-bladed, and should be
tightened to 3.5 in-lb (0.4 Nm).
Recommended minimum wire gauge is No. 18 AWG, up
to 500 ft (152.4 m). Terminals are listed for copper
conductors only.
Exception: Conductors of AC and DC circuits, 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
maximum circuit voltage applied to any conductor within
the equipment, cable, or conduit. See NEC 300.3(C)(1).
Figure 3-2. Typical Connections
* Required to supply utility or generator voltage to the generator
battery charger.
T1 (fused) — Battery Charge
N1 (fused) — Utility Sense
N2 (fused) — Utility Sense
0 — Ground (not required)
194 — + 12 VDC
23 — Transfer Control
A— 240 VAC, 6.3A Fuses
Table 3-1. Customer Wiring Connections
Integrated PCB (non-SACM)
Terminal
Numbering Decal
Wire Numbers
BLUE* T1—Fused 120 VAC for battery charger
YELLOW
N1—Fused 240 VAC
Sensing for utility dropout and pickup
YELLOW WITH
BLACK STRIPE
N2—Fused 240 VAC
Sensing for utility dropout and pickup
BLACK 0—DC (-) Not required
RED 194—DC (+) 12 VDC for transfer controls
WHITE 23—Transfer control signal wire
T1 N1
Replace with Littlefuse 021606.3MXHP,
Optifuse FCD-6.3A or
Generac 10000005117 250 vac, 6.3A
®
®
0 GROUND
194 +12V
N1 N2 T1
23 TRANSFER
N2
004776
A