NPIH800

Residual overcurrent protection

Provides earth fault overcurrent protection for medium and high voltage electrical networks.

Our NPIH800 monitors phase to earth faults and ensures the proper functioning of the circuit breaker and its tripping circuit.

Residual overcurrent protection

Easy to use

Measurement and monitoring

Recording / event log

Disturbance recording

Local HMI

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Communication interfaces	Double RS485 - Redundancy RJ45 Ethernet 10 Mbits/s RS485
Communication protocols	Modbus RTU Modbus TCP/IP
Mesures and operations	Zero-sequence current — Zero-sequence current, high sensitive input
Power supply	19 to 70 Vdc 85 to 255 Vdc/Vac (50/60 Hz)
Type of option cards	1x 10 Mb Ethernet card 1x 2 wires RS385 serial card 2x RS 485 redundant mode card 4x DI - 4x DO card
Sensitive current inputs	1
Disturbance records	4
Digital inputs	4
Digital outputs	3
Watchdog output	1
Indication LEDs	5
Number of optional modules	2