Relay for decay, asymmetry and phase sequence PZAK-1 002471409

Relay for decay, asymmetry and phase sequence PZAK-1

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Phase sequence control: yes
Phase asymmetry control: yes
Undervoltage control function: yes
Over-voltage control function: no
Rated control voltage Us for AC 50 Hz: 400 ... 400 VV
Voltage measuring range: 175 ... 400 VV
Phase failure detection: yes

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