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Motor protection switch MS450 + 495
ABB motor protection switch MS495-75
Setting: 57...75A
Item No. 4037.5074
Special Features
- Motor protection up to 22 or 55 kW (400 V)
- Rated currents 11 to 100A
- Optimal protection for motors up to 100A
- Module width of 55 or 70 mm
- Temperature compensated
- Rotary handle operation with manual release
- Clear switching position indicator I/TRIP/0
- Remote disconnection via undervoltage release or operating current release (optional)
Versions
| Item No. | Manufacturer ID | Delivery Time | Stock | Quantities / Prices |
|---|---|---|---|---|
| 4037.5074 | 1SAM550000R1008 | On request | 0 |
Technical Features
Series Specifications
Designation
MS450 / MS495
Main contacts
3 normally open contacts
Electrical lifespan
25,000 cycles
Mechanical lifespan
50,000 cycles
Ambient temperature open
-20 ... +70 °C
Ambient temperature open - compensated
-20 ... +60 °C
ambient temperature encapsulated
-20 ... +35 °C
Shock resistance
25 g / 11 ms (MS450)
Installation position
Arbitrary
Connection cross-section MS450
0.75 ... 35mm²
Connection cross-section MS495
10 ... 70mm²
Tightening torque of the connection screws (main contact) MS450
3 - 4.5Nm
Tightening torque of the connecting screws (main contact) MS495
4 - 6Nm
Rated impulse voltage withstand Uimp
6000V
Degree of contamination
3
Rated operating voltage Ue
690 V AC / 450 V DC
Rated operational current Ie MS450
28-50A depending on type
Rated operating current Ie MS495
45-100A depending on the type
Frequency
50/60Hz
Motor switching capacity
600V AC
Individual Parameters
Type
MS450-75
rated operating current
57...75 A
Manufacturer
ABB STOTZ-KONTAKT GmbH, Eppelheimerstr. 82, DE - 69123 Heidelberg