| Brand | DOLD |
|---|---|
| Housing width | 70 mm |
| Output contacts | 2 C/O contacts |
| Enclosure design | Switch cabinet |
| Phases | 3 |
| Order number | 0017934 |
DOLD AK 9840 – Asymmetry Relay
- Brand
- DOLD
- Part number
- AK 9840
- Order number
- 0017934
Asymmetry Relay
Price and lead time on request — add this part to your quote list and we will reply with pricing and availability.
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.
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
Technical specifications
| 1- / 3-phase | 3 |
|---|---|
| Enclosure design | Switch cabinet |
| Measuring range max. | 3 AC 690 V |
| Operate delay | Yes |
| Output contacts | 2 C/O contacts |
| Standard measuring range | 3 AC 400 V |
| Width | 70 mm |
| Type | AK 9840 |
Available variants
| Contact equipping | 2 changeover contacts |
|---|---|
| Nominal voltage | 3AC 110 V 50/60 Hz · 3AC 127 V 50/60 Hz · 3AC 190 V 50/60 Hz · 3AC 208 V 50/60 HZ · 3AC 220 V 50/60 Hz · 3AC 240 V 50/60 Hz · 3AC 380 V 50/60 Hz · 3AC 400 V 50/60 Hz · 3AC 415 V 50/60 Hz · 3AC 440 V 50/60 Hz · 3AC 460 V 50/60 Hz · 3AC 480 V 50/60 Hz · 3AC 500 V 50/60 Hz · 3AC 550 V 50/60 Hz · 3AC 600 V 50/60 Hz · 3AC 660 V 50/60 Hz · 3AC 690 V 50/60 Hz |
Tell us the variant you need in your quote request.







