NDR

Description

Phase sequence indicatior

Application
Phase sequence indicator are used for determining and monitoring the rotating field (phase sequence) in electrical systems.

Design and function
The instruments comply with DIN EN 61557-7. Indication is made by LEDs:
green = right-hand rotating field
red = left-hand rotating field
Additionally, three further LEDs indicate whether all three phase voltages are present or which phase is missing.

Downloads
PDF-product description
PDF-operating manual