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Page 10 INSTALLATION
AMBIENT CONDITIONS
Do not install this
equipment in areas where
unusual service conditions
exist. Using this equipment
in other than usual service
conditions can result in
equipment failure.
Toshiba HCV-1JBU and HCV-1KAU contactors
are intended for use in usual service conditions
as defined in NEMA ICS 1. The temperature of
the cooling air (ambient air temperature)
surrounding the contactor should be between the
limits of -5°C (23°F) and +40°C (104°F). The
altitude of the equipment installation should not
exceed 3300-ft (1000 m).
In particular, avoid the following installation
conditions:
- Excessive dust
- Corrosive gases
- Extreme variations in temperature
- Very high or low humidity
- Vibrations
- Inclined locations
If there is a chance that condensation can occur
at the installation location, a space heater should
be installed inside the contactor enclosure.
NOTE: Temperature, altitude or other
conditions outside of the usual limits
may require derating or other special
equipment. Contact your nearest
Toshiba representative for additional
information.
MOUNTING THE CONTACTOR
The contactor is designed to mount to a flat,
vertical surface. If there are any noticeable gaps
between the contactor and the mounting surface,
fill them in using flat washers as spacers.
Fasten the contactor using four (4) M8 hex
head bolts. The tightening torque should be
120-150 kgf-cm (9-11 ft-lb). See Table 1 for
tightening torque specifications.
MAIN CIRCUIT CABLE CONNECTIONS
Route cables that connect to the contactor to
avoid interference with sharp edges and moving
parts. Observe minimum bending radius for the
type of cable used.
Power cables should be braced and/or laced to
withstand short-circuit forces wherever such
cables are unsupported. Power cables should
be adequately sized to carry the maximum
continuous current in accordance with NEC
requirements and should have an adequate
voltage rating. Cables should be dressed and
terminated as appropriate to the voltage class
and cable manufacturer’s recommendations.
Fasten the cables to the main circuit terminals.
Use 35 mm Class 8.8 M10 or M12 hex head
bolts, 2 flat washers, a lock washer and a nut.
While securely preventing the nut from rotating
with a wrench, torque the bolt to 250-315 kgf-
cm (18-23 ft-lb) for M10 bolts or 450-565 kgf-cm
(32-41 ft-lb) for M12 bolts.
WARNING
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