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Phase monitor RK 9872

RK9872.png

Features

• According to IEC/EN 60255-1
• Detection of under-/overvoltage and phase sequence in 3-phase
voltage systems
• Without separate auxiliary voltage
• LED-Indication for operation voltage and contact position
• De-energized on trip
• With fixed response value for undervoltage
• With fixed response value for overvoltage
• Width: 17,5 mm

• According to IEC/EN 60255-1
• Detection of under-/overvoltage and phase sequence in 3-phase
voltage systems
• Without separate auxiliary voltage
• LED-Indication for operation voltage and contact position
• De-energized on trip
•...

more...

Advantages / Customer benefit

• Reliability monitoring of 3- or 1-phase voltage systems on:
- Undervoltage
- Overvoltage
- Phase sequence (at 3-phase voltage system)
• Fast fault location
• Preventive maintenance
• Space saving

Function Phase monitor
1- / 3-phase 3
Standard measuring range 3/N AC 400; 230 V
Measuring range max. 400 V
Output contacts 1 w
Enclosure design Installationsverteiler
Width 17,5 mm
Type RK 9872

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Datasheet / Operating Instructions, File: pdf, File size 168 KB

The space saving phase monitor RK9872/800 from the Varimeter family monitors under- and overvoltage as well as phase sequence in 3-phase systems. The response values are fixed. When connecting the measuring voltage to the inputs L1-L2-L3 and fault free system the relay switches on. When the measuring voltage is connected the unit checks a clockwise phase sequence. If this is not the case the yellow LED flashes. The output relay will not energise. After detection of under- or overvoltage on one or more phases for more the 5 sec. the relay switches off. The relay stays off for at least 2 seconds. The phase monitor measures the arithmetic mean value of the 3 phases against neutral.

 

 

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