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INSTALLATION
AMBIENT CONDITIONS
Do not install this
WARNING
equipment in areas where
unusual service conditions
exist. Using this equipment
in other than usual service
conditions can result in
equipment failure.
Toshiba CV-1GAU and CV-1HAU 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 -
10°C (50°F) and +50°C (122°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, capacitor
switching or other conditions outside
of the usual limits may require
derating or other special equipment.
Contact your nearest Toshiba
representative for additional
information.
RATING VERIFICATION
Prior to installation, the maximum current rating
and typeform of the contactor should be verified.
The current rating label is located on the left side
of the contactor (Figure 6). The typeform label is
located on the right side of the contactor
(Figure 7).
See Table 5 – Ratings, in the
SPECIFICATION Section of this manual for
information on contactor ratings and typeforms.
Do not exceed the ratings
specified on the contactor
DANGER
rating label or system
accessories. Underrated
equipment can fail during
operation causing fire,
explosion, severe injury,
death and property damage.
Figure 6 - Rating Label, Left Side
Figure 7 - Typeform Label, Right Side
Page 10
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