WEG Electric MPW Technical Data
Controls
Manual Motor Protectors
Connection Diagrams and Typical Cirrcuits
ACBF-11 and ACBF 11 MPW100 ACBS-11 and ACBS-11-MPW100 ACBS-20 and ACBS-20-MPW100
ACBS-02 and ACBS-02 MPW100 TSB-22 TSB AT11 MPW100
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MPW25 + CLT25
Feeder
Typical Circuits
Undervoltage Release URMP Shunt Release SRMP Trip Signalling Block TSB-22
URMP SRMP
Load
F1
CONTROLS
S0...Sn - Push Buttons in the circuit (NC)
S
S0...Sn - Push Buttons in the circuit (NO)
S - MPW auxiliary contact
H
- Short-circuit trip signalling
1
H2 - Overcurrent trip signalling
WEG Automation - Products and Solutions
245
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Controls
Manual Motor Protectors - MPW Technical Data
Technical Data
Altitude - Correction factor
The MPW manual motor protectors do not undergo any
change to their specified 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
table on the right
Altitude
(above sea level) - h
h ≤ 2000 m 690 V 1 x I
2000 < h ≤ 3000 m 550 V 0,96 x I
3000 < h ≤ 4000 m 480 V 0,93 x I
4000 < h ≤ 5000 m 420 V 0,90 x I
Rated operational voltage
U
e
Current correction factor I
u
u
u
u
u
DC operation
The MPW16, MPW25 and MPW65 motor protective circuit
breakers can also be used for operating continuous current
loads. For such operation it is necessary to connect 2 or 3
poles in series.
See recommended circuits and their voltage limits in the
table on the right.
Time constant t = 5 ms
Short-circuit breaking capacity I
= 10 kA for all
cu
configurations
Circuits Max. VDC Notes
150 VDC
300 VDC
450 VDC
System not
grounded
2 pole series connected
System
grounded
2 pole series connected
System
grounded
3 pole series connected
CONTROLS
244 1-800-ASK-4WEG
Data is subject to change without notice.
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