8
Installation and Maintenance Instructions
Model 450E Electronic Horn
Wiring the Horn
SHOCK HAZARD — To avoid electrical shock hazards, do not
connect wires when power is applied.
Failure to heed this
warning may cause serious injury or death.
WIRING PRECAUTION — An uninsulated section of a single
conductor must NOT be looped around a terminal and used
as two separate connections. NFPA 72 requires that the wire
is severed to provide electrical supervision of the connection
if the wire becomes dislodged from under the terminal.
Failure to sever the wire may render the horn inoperable,
causing serious injury or death.
WIRING PRECAUTION — National Electrical Codes as well
as local codes must be adhered to in the installation of the
Model 450E horn. All electrical wiring must be routed through
approved conduit and fittings as specified. Failure to heed
this warning may cause an electrical shock or render the horn
inoperable, causing serious injury or death.
WIRING PRECAUTION — Refer to NFPA 70 and NFPA 72
(NEC) and CSA C22.1 Canadian Electrical Code, Part 1, Safety
Standard for Electrical Installation, Section 32. Failure to heed
this warning may cause an electrical shock or render the horn
inoperable, causing serious injury or death.
For power connections, use only wire sized 12 AWG to 18 AWG
(2.5 mm
2
to 1.0 mm
2
). Strip no more than 0.25
"
(6 mm) of
insulation from the ends of the power wires. Torque the terminal
screws to 4.5 in-lb (0.51 Nm) maximum.
