Mitsubishi Electric MS-T Series Instruction Manual page 7

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