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Iskra Motor Protection Switches MS25
according to DIN EN IEC 60947-4-1 VDE0660-102:2020
Description
Features
- Overload and short-circuit release with phase failure sensitivity
- Temperature compensated
- Optimal protection for motors up to 32A
- Main switch and disconnector function
- IE3-Ready
Series Specifications
Designation
MS25
Rated operating voltage Ue
690 VAC
Frequency
50/60 Hz
Motor switching capacity AC-3
max. 690 V
Rated operating current Ie
0.16 - 32A depending on the range.
Impulse voltage withstand strength Uimp
6000 V
Electrical lifespan AC-3
100,000 switching cycles
main contacts
3 normally open contacts
Electric lifespan DC-5
20,000 switching cycles
Mechanical lifespan
100,000 switching cycles
Ambient temperature
-25°C ... +60°C
Shock resistance
20g/11ms
Installation position
Any
connection cross-section
1.0 - 6.0 mm² (rigid); 0.75 - 4.0 mm² (flexible with end sleeve)
Tightening torque of the connection screws (main contact)
1.8 Nm
Overvoltage category/pollution degree
III/3
Rated short-circuit switching capacity 400V AC
50kA up to 6.3A; 6kA up to 32A
Approvals
CE, UL EAC
Versions
| Artikel-Nr | Bild | Designation | rated current (A) | Standard motor power at 380/400/415V (AC-3) (kW) | Standard motor power at 550V (AC-3) (kW) | Standard motor power at 660/690V (AC-3) (kW) | Rated current short-circuit release (A) | Pre-insurance at 400 V (gL, aM) (A) |
|---|---|---|---|---|---|---|---|---|
| 4073.5101 > 5 |  | MS25-0.16 | 0.1-0.16 | 0.02 | - | 0.06 | 2.2 | Not required |
| 4073.5102 > 5 | | MS25-0.25 | 0.16-0.25 | 0.06 | 0.06 | 0.09 | 3.5 | Not required |
| 4073.5103 > 5 | | MS25-0.4 | 0.25-0.4 | 0.09 | 0.12 | 0.18 | 6 | Not required |
| 4073.5104 > 5 | | MS25-0.63 | 0.4-0.63 | 0.12 | 0.25 | 0.25 | 9 | Not required |
| 4073.5105 > 5 | | MS25-1 | 0.63-1 | 0.18-0.25 | 0.37 | 0.37-0.55 | 14 | Not required |
| 4073.5106 > 5 | | MS25-1.6 | 1-1.6 | 0.37-0.55 | 0.55-0.8 | 0.55-0.8 | 23 | Not required |
| 4073.5107 > 5 | | MS25-2.5 | 1.6-2.5 | 0.75-1.1 | 1.1 | 1.5 | 35 | Not required |
| 4073.5108 > 5 | | MS25-4 | 2.5-4 | 1.1-1.5 | 1.5-2.2 | 2.2-3 | 56 | Not required |
| 4073.5109 > 5 | | MS25-6.3 | 4-6.3 | 2.2-2.5 | 3 | 4 | 88 | Not required |
| 4073.5110 > 5 | | MS25-10 | 6.3-10 | 3-4 | 4-5 | 5.5-7.5 | 110 | 80 |
| 4073.5111 > 5 | | MS25-16 | 10-16 | 5-7.5 | 7.5-9 | 11 | 224 | 80 |
| 4073.5112 > 5 | | MS25-20 | 16-20 | 9 | 11-12.5 | 15 | 280 | 80 |
| 4073.5113 > 5 | | MS25-25 | 20-25 | 11-12.5 | 15 | 18.5 | 350 | 80 |
| 4073.5114 > 5 | | MS25-32 | 25-32 | 15 | 18.5 | 22 | 450 | 80 |