| Brand | DOLD |
|---|---|
| Housing width | 17.5 mm |
| Output contacts | 1 C/O contact, 2 C/O contacts |
| Enclosure design | Distribution board |
| Phases | 1, 3 |
| Order number | 0062759 |
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DOLD RK 9871 – Undervoltage Relay
- Brand
- DOLD
- Part number
- RK 9871
- Order number
- 0062759
Undervoltage Relay
- Higher safety in buildings
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Monitoring of undervoltage in 3 phase voltage systems and switch over to emergency supply.
Features
- According to IEC/EN 60255-1
- For installations according to DIN VDE 0100-718:2005-10 and DIN VDE 0108-100:2005-01
- Detection of undervoltage in 3-phase systems
- Without separately auxiliary voltage (internal supply from all 3 phases)
- LED indication for für operation voltage and contact position
- De-energised on trip
- RK 9871.71: 1 changeover contactRK 9871.72: 2 changeover contacts
- With fixed time delay of 0.5 s for fault indication
- With fixed time delay of 1 min for reset
- With fixed response value at AC 195.5 V
- As option with test-button for function control
- Width 17.5 mm
Technical specifications
| 1- / 3-phase | 1, 3 |
|---|---|
| Auxiliary voltage | Without |
| Enclosure design | Distribution board |
| Nominal voltage max. | 3/N AC 400 / 230 V |
| Operate delay | Yes |
| Output contacts | 1 C/O contact, 2 C/O contacts |
| Width | 17,5 mm |
| Type | RK 9871 |
Available variants
| Contact equipping | 1 changeover contact · 2 changeover contacts |
|---|---|
| Nominal voltage | 3/N AC 400 / 230 V |
| Variant | De-Energized on trip · De-energized on trip. With test-button for simulation of undervoltage |
Tell us the variant you need in your quote request.
