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Undervoltage Relay
AA 9943
- Article number: 0005678
- Variant: AA9943.11 3AC50-400HZ 240/415V
Undervoltage detection in 3 phase systems For industrial and railway applications more
Product description
- Undervoltage detection in 3 phase systems
- For industrial and railway applications
Technical specifications
Width: | 45 mm |
Operate delay: | + |
1- / 3-phase: | 3 |
Output contacts: | 1 Wechsler, 2 Wechsler |
Measuring range max.: | AC 690 V |
Enclosure design: | Front panel mounting |
Type: | AA 9943 |
Downloads
Features
- According to EC/EN 60255-1, IEC/EN 60255-26, VDE 0435 part 303
- 3-phase
- For nominal voltage of 3 AC 100 / 57 to 690 / 400 V
- Measures arithmetic mean value
- Adjustable operate and release value
- For 3p3w or 3p4w systems
- BA 9043 optionally with adjustable time delay
- Closed circuit operation
- LED indicator for operation and state of contact
- Insensitive to harmonics
- Frequency up to 400 Hz
- Width 45 mm