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

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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