ŁK40 OB2 Cam switches in enclosure
Cam switches in enclosure ŁK 40/63 OB2
ŁK#-#\#
EAN:
| Rated insulation voltage Ui | 690 V |
| Rated withstand impulse voltage Uimp | 6 kV |
| Rated continuous current Iu=Ith | 40 A |
| Rated operational power Pe for AC-3 | 20 kW (400 V) 14 kW (500 V) 7 kW (690 V) |
| Rated operational power Pe for AC-4 | 8 kW (400 V) 5.5 kW (690 V) |
| Rated operational current Ie for AC-3 | 38 A (400 V) 21.5 A (500 V) 7.5 A (690 V) |
| Rated operational current Ie for AC-4 | 16 A (400 V) 6 A (690 V) |
| Short-time short-circuit withstand current Icw(1s) | 0.85 kA |
| Rated short-circuit making current Icm | 1.5 kA |
| Tightening torque, terminals | 2.0 Nm |
| Mechanical endurance | 3.0 mln (transposition cycles) |
| Ambient temperature | -40 ... +70°C (work) -40 ... +70°C (storage) |
| Wire gauge | 4...10 mm² |
| Protection level: PN-EN 60529 to the panel | IP41 IP65 |
| Vibration test (acc. to IEC 60068-2-6) | 2...13, 2...100 Hz (frequency) ± 1 mm (acceleration amplitude) ±0.7 g (acceleration amplitude) |
| Shock test (acc. to IEC 60068-2-27) | 15 g (peak acceleration) 11 ms (impulse duration) |
| Damp heat cyclic test (acc. to IEC 60068-2-30) | 55°C (ambient temperature) 95% (relative humidity) |
| Salt mist cyclic test (acc. to IEC 60068-2-52) | severity 1 |
| Number of segments in the switch | 1 ... 2 |
| 1.825 | Disconnector 0-1 (1 - pole) |
| 1.828 | Disconnector 0-1 (2 - pole) |
| 2.8211 | Disconnector 0-1 (3 - pole) |
| 2.8210 | Disconnector 0-1 (4 - pole) |
| 2.4414 | Rotary disconnector 0-1 |
| 2.8445 | Control switch 0-1-2-3 |
| 1.834 | Disconnector 1-0-2 (1 - pole) |
| 2.8338 | Disconnector 1-0-2 (2 - pole) |
Assembly
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OB2
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OB2C
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OB2Z
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OB2ZC
