15
Installation and Maintenance Instructions
Model eHorn
Wiring the 120 Vac/240 Vac Model
SHOCK HAZARD: To avoid electrical shock, do not connect wires when
the circuits are energized.
To extend wire for the power connections, use only 12 AWG
to 18 AWG (2.5 mm
2
to 1.0 mm
2
) wire. The external leads and
connector must be suitably protected to prevent damage. Use
grommets, bushings, and wires ties to protect them from abrasion.
To wire the 120 Vac or 240 Vac Model eHorn:
1.
Strip no more than 0.25 inch (6 mm) of wire insulation from
the ends of the power leads. If you are using stranded wire, be
sure there are no loose strands outside the connector plug that
could touch the adjacent lead and cause a short circuit. Torque
the terminal screws to 4.4 in‑lb (0.5 Nm) maximum.
2.
Connect the power source hot, neutral, and earth ground wires
as shown in Figure 6.
Figure 6 120 Vac/240 Vac power supply board
L1 HOT
L2 NEUTRAL
GROUND
240 120
AC
Power
Input
120 Vac / 240 Vac
Switch, S1
L1 -
HOT
GND
L2 -
NEU
AC Power
Connector
3.
Plug the AC power connector into the power input connector
on the printed circuit board.
NOTE:
The eHorn is factory‑set for 120 Vac operation. For
240 Vac operation, move switch
S1
to the
240
Vac position.
See Figure 6.
