C-11
WEG Automation - Products and Solutions
Data is subject to change without notice.
Low Voltage Industrial Controls
Notes: 1) 500 V with plastic enclosure.
2) Reduce current for temperatures exceeding +60 °C (87% to 70 °C).
3) Only available with spring terminal.
Models MPW18 MPW40
Maximum rated current Inmax (Ie) 18 A 40 A
Number of poles 3 3
Short-circuit release 13xIe
max
13xIe
max
Rated operational voltage Ue 690 V
1)
690 V
1)
Rated frequency 50/60 Hz 50/60 Hz
Rated insulation voltage Ui 690 V 690 V
Rated impulse withstand voltage Uimp 6 kV 6 kV
Use category
IEC 60947-2 (circuit breaker) A A
IEC 60947-4-1 (motor starter) AC-3 AC-3
Tripping test Yes Yes
Overload protection Yes Yes
Phase failure sensitivity (IEC 60947-4-1) Yes Yes
Tripping indication No Yes
Tripping class (IEC 60947-4-1) 10 10
Maximum operation per hour Operations/hour 15 15
Altitude (m) 2000 2000
Degree of protection (IEC 60529) IP20 IP20
Mechanical life Number of operations 100000 100000
Electrical life Number of operations 100000 100000
Permissible ambient temperature
Transport and storage -50...+80 °C -50...+80 °C
Operation
2)
-20...+70 °C -20...+70 °C
Temperature compensation (IEC 60947-4-1) -20...+60 °C -20...+60 °C
Power dissipation per circuit breaker
Maximum rated currents In
≤10 A 7 W 7 W
≤12 A
3)
7 W --
≤16 A 8 W 8 W
≤18 A 7 W --
≤20 A -- 9 W
≤25 A -- 15 W
≤32 A -- 15 W
≤40 A -- 15 W
Resistance to impact (IEC 60068-2-27) 15 g 15 g
Standards
IEC 60947-1 Yes
IEC 60947-2 Yes
IEC 60947-4-1 Yes
Connection
Type of terminal Spring
Screws
Phillips (Nº 2)
Screws
Phillips (Nº 2)
Tightening torque
N.m - 1.2...1.7 2...2.5
lb.in - 11...16 18...22
Dimensions
Width (mm) 45 45
Height (mm) 100 90
Depth (mm) 77 77
Altitude
(above sea level) - h
Rated operational voltage
Ue
Current correction factor
Iu
h ≤2000 m 690 V 1 x I
n
2000< h ≤3000 m 550 V 0.96 x I
n
3000< h ≤4000 m 480 V 0.93 x I
n
4000< h ≤5000 m 420 V 0.90 x I
n
Altitude - Correction Factor
The MPW motor protective circuit breakers do not undergo
any change to their specifed performance when applied at
an altitude of up to 2000 meters above sea level.
However, as the altitude increases, the atmospheric
properties vary in terms of dielectric rigidness and pressure.
Therefore, current and voltage correction factors must be
applied for altitudes exceeding 2000 meters, as shown in the
following table:
MPW Manual Motor Protectors - Technical Data
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