Mitsubishi Electric MS-T Series, Инструкция по эксплуатации

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5
For special environment
Special environment Problem points General measures
Name Type
Sudden temperature
changes

Rusting or
malfunctioning due
to dew
condensation
(freezing)

Install a space
heater to lower the
relative humidity.

Move the product
to a place with little
temperature
change.
Low temperature
Freezer storage
Low temperature
room

Freezing

Malfunctioning or
rust due to dew
condensation.

Install a space
heater, etc., to
increase the
temperature.

Dry the area.
Consult
Mitsubishi when
the temperature
is –10

C or less.
High temperature
Steel mill
Molding forming
plant

Malfunctioning

Heat resistance of
connected wires

Overheating of
insulator

Lower load
current.

Use heat resistant
wires.

Do not use in
places where the
temperature in the
panel exceeds
55

C.
High humidity
Chemical plants
Pump room

Drop in insulation
resistance

Corrosion, rusting

Place in a
waterproof type
box, etc.

Inspect regulary.

Corrosion-
proof
treatment
MSO- YS
(supported by the
S-T type
magnetic
contactor as
standard.)
Corrosive gas, sodium
Petrol refining plant
Chemical plant
Coastline
City water pump
room (Chlorine
disinfectant)

Corrosion, rusting

Place
anti-corrosive
product in
corrosion-proof
type box, etc.

Corrosion-
proof
treatment
MSO- YS
(supported by the
S-T type
magnetic
contactor as
standard.)
Use it in
corrosion-proof
box.
Dus
t, mois
ture
Cement plant
Textile plant

Failure in contact
continuity

Failure in
mechanism
operation

Deterioration of
insulation

Place in a dust-
proof box, etc.