| Brand | DOLD |
|---|---|
| Housing width | 52.5 mm |
| Output contacts | 1 C/O contact |
| Enclosure design | Distribution board |
| Phases | 1 |
| Order number | 0068251 |
DOLD RN 9877/800 – Overvoltage relay
- Brand
- DOLD
- Part number
- RN 9877/800
- Order number
- 0068251
Overvoltage relay
- Preventive maintenance
- For better productivity
- High repeat accuracy
Price and lead time on request — add this part to your quote list and we will reply with pricing and availability.
The overvoltage relay RN 9877/800 of the VARIMETER PRO series monitor overvoltage in a AC network. The measurement is very simple and without extensive wiring as there is no auxiliary power supply necessary. The early detection of up-coming break downs and preventive maintenance avoid expensive damages. As user you profit from the reliability and availability of your plant.
Features
- According to IEC/EN 60255-1
- For monitoring of AC single-phase with 50 / 60 Hz
- Detection of overvoltage
- No separate auxiliary necessary
- Output: 1 changeover contact
- Energized on trip
- Fixed response value AC 290V
- Fixed release delay 180 s
- Fast fault detection
- Width: 52.5 mm
Technical specifications
| 1- / 3-phase | 1 |
|---|---|
| Auxiliary voltage | Without |
| Enclosure design | Distribution board |
| Measuring range max. | 450 V |
| Output contacts | 1 C/O contact |
| Standard measuring range | AC 150 – 450 V |
| Width | 52,5 mm |
| Type | RN 9877/800 |
Available variants
| Contact equipping | 1 changeover contact |
|---|---|
| Measuring voltage | AC 150 – 450 V |
| Response value | 290 V |
| Time delay | 180 s |
Tell us the variant you need in your quote request.







