Datasheet

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MPW - Motor Protective Circuit Breakers
MPW Motor Protective Circuit Breakers - Technical Data
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:
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 MPW40 MPW40i MPW40t
Maximum rated current Inmax (Ie) 40 A 20 A
Number of poles 3
Short-circuit release 13xIe
max
19 x Ie
max
Rated operational voltage Ue 690 V
1)
Rated frequency 50/60 Hz
Rated insulation voltage Ui 690 V
Rated impulse withstand voltage Uimp 6 kV
Use category
IEC 60947-2 (circuit breaker) A
IEC 60947-4-1 (motor starter) AC-3
Tripping test Yes
Overload protection Yes No Yes
Phase failure sensitivity (IEC 60947-4-1) Yes No Yes
Tripping indication Yes No Yes
Tripping class (IEC 60947-4-1) 10 - 10
Maximum operation per hour Operations/hour 15
Altitude (m) 2000
Degree of protection (IEC 60529) IP20
Mechanical life Number of operations 100000
Electrical life Number of operations 100000
Permissible ambient temperature
Transport and storage -50...+80 °C
Operation
2)
-20...+70 °C
Temperature compensation (IEC 60947-4-1) -20...+60 °C - -
Power dissipation per circuit breaker
Maximum rated currents In
≤10 A 7 W
≤16 A 8 W
≤20 A 9 W
≤25 A 10 W
≤32 A 15 W
≤40 A 15 W
Resistance to impact (IEC 60068-2-27) 15 g
Standards
IEC 60947-1 Yes
IEC 60947-2 Yes
IEC 60947-4-1 Yes
Connection
Type of terminal Screws phillips (Nº 2)
Tightening torque
N.m 2...2.5
lb.in 18...22
Dimensions
Width (mm) 45
Height (mm) 97
Depth (mm) 98