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Overvoltage relay
RN 9877/800
- Article number: 0068251
- Type: RN9877.11/800 AC150-450V US290V
The overvoltage relay RN 9877/800 of the VARIMETER PRO series monitor overvoltage in a AC... more
Product description
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.
Technical specifications
| Width: | 52,5 mm |
| 1- / 3-phase: | 1 |
| Standard measuring range: | AC 150 - 450 V |
| Measuring range max.: | 450 V |
| Auxiliary voltage: | Without |
| Output contacts: | 1 C/O contact |
| Enclosure design: | Distribution board |
| Type: | RN 9877/800 |
Advantages
- Preventive maintenance
- For better productivity
- High repeat accuracy
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