Hager EU400 voltage and frequency relay NA protection content_copy

Voltage and frequency relay, NA protection according to VDE AR-N 4105. Network and system protection in accordance with the VDE application rules VDE-AR-N 4105:2011-06 and 4105:2018-11, VDE-AR-N 4110:2018-11. Compliance with the BDEW guideline and DIN V VDE 0126-1-1, DIN V VDE V 0126-1-1/A1. Monitoring of overvoltage and undervoltage and frequency, 10-minute average vector shift monitoring ROCOF, monitoring of the frequency gradient df/dt. Single-fault safe with monitoring of the coupling switch, island network monitoring (passive). Integrated 4-digit digital display for measured values and programming. All values can be set and read on the device. Preset basic programs in accordance with the standards and guidelines, digital display for measured values and programming of limit values. Hysteresis and switching times can be set individually for each alarm. MIN/MAX memory for measured values, test button and simulation function with measurement of switching times. Integrated alarm counter for 100 alarms, with relative time stamp and recording of the total alarm time. Switching outputs: Output relay 2 x 1 changeover contact, transistor outputs for reporting the switching cause. Operating status and alarm display with LEDs. Possibility of code protection for parameters and sealing for setting values.

General
Type of electric connection	Screw connection
Voltage measurement range 1	310 V
Voltage measurement range 2	530 V
Type of voltage measurement range	AC
Min. adjustable delay-on energization time	0.05 s
Max. permitted delay-on energization time	130 s
Min. adjustable off-delay time	0.1 s
Max. permitted off-delay time	999 s
Number of contacts as normally closed contact	2
Number of contacts as normally open contact	2
Number of contacts as change-over contact	2
Width	90 mm
Height	105 mm
Depth	69 mm
Operating voltage at AC 50 Hz	270 V
Operating voltage at AC 60 Hz	270 V
Operating voltage at DC	240 V
Supply voltage AC 50 Hz	270 V
Supply voltage AC 60 Hz	270 V
Supply voltage DC	240 V
Voltage type (operating voltage)	AC/DC
Voltage type of supply voltage	AC/DC
With detachable clamps
Single-phase under voltage possible
Three-phase under voltage possible
Single-phase over voltage possible
Three-phase over voltage possible
Single-phase hysteresis possible
Three-phase hysteresis possible
Contains function DC-under voltage
Contains function DC-over voltage
Contains function DC-voltage hysteresis
External power supply required

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