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Asymmetry Relay
AK 9840
- Article number: 0017934
- Type: AK9840.82 3AC50/60HZ 220V
The asymmetry relais AK 9840 of the VARIMETER series monitors voltage asymmetry, under voltage,... more
Product description
The asymmetry relais AK 9840 of the VARIMETER series monitors voltage asymmetry, under voltage, phase failure as well as incorrect phase sequence at three-phase mains. The measurement is very simple and can be carried out without much wiring effort, as no separate auxiliary voltage is required. Early detection of impending failtures and preventive maintenance prevent costly damage and as a user you benefit from the operational safety and high availability of your system.
Technical specifications
| Measuring range max.: | 3 AC 690 V |
| Standard measuring range: | 3 AC 400 V |
| 1- / 3-phase: | 3 |
| Operate delay: | Yes |
| Output contacts: | 2 C/O contacts |
| Width: | 70 mm |
| Enclosure design: | Switch cabinet |
| Type: | AK 9840 |
Features
- According to IEC/EN 60255-1
- For nominal voltages from 3 AC 110 up to 690 V
- Detection of
- Voltage asymmetry
- Incorrect phase sequence
- Phase failure
- Undervoltage - Voltage feedback recognition
- Also suitable for harmonic industrial mains
- Closed circuit operation
- Contact position indication
- With adjustable delay
- 2 C/O contacts
- Width: 75 mm