3
MV 25 Motor protection switch
1. Warning symbols used
DANGER
Danger to life !
If ignored, this may lead to death
or severe personal injury.
CAUTION
Danger of injury ! Material
damage ! If ignored, this may
lead to minor or more serious
personal injury or material
damage.
2. Product information
●
Device with main contactor and control fuse.
●
The control circuit is interrupted if the
permitted temperature in the motor winding
is exceeded (“TK” connection). The main
contactor drops out and separates the
motor from the power.
CAUTION
Danger of injury caused
through automatic startup of
fan motor, following a power
cut !
Do not reach into or insert any
objects into the area of the
impeller.
Dimensions
●
MV 25 (W x H x D): 75 x 140 x 95 mm
Power supply
●
Rated voltage:
400 V
●
Maximum load: 25 A
●
Mains frequency: 50 Hz or 60 Hz
Degree of protection
●
MV 25:
IP 54
3. Environmental conditions and
operational limits
●
Permitted ambient temperature: 40 °C
4. Basic safety instructions
General notes regarding safety
●
Retain instructions.
●
Installation, electrical connections and
repairs by trained personnel only.
●
Connect motor protection switch to fixed
electrical installation. Select cable type and
cross-section to conform with DIN VDE
0298-4. Circuit breaker with contact
openings of at least 3.0 mm at each pole
required.
●
Operate device at voltage and frequency
stated on rating plate only.
●
Modifications and changes to the device
are not permitted and if carried out, they
release MAICO from any and all guarantee
commitments or liability.
●
Only operate device with cover.
Intended use
●
Motor protection switch for fans with fitted
thermal contacts.
●
To protect three-phase AC motors.
●
For surface installation.
Non-permissible usage
The device should not be used:
●
In the vicinity of combustible materials,
fluids or gases.In explosive areas.
5. Technical Data
See the rating plate.
GB
Summary of Contents for MV25
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