SEG BU1-AC-400 VOLTAGE RELAY SEG BU1AC400 BU1 AC 400 - GENUINE ORIGINAL
Brand = SEG
Part Number = BU1-AC-400
Description = Voltage Relay
Under- and over-frequency supervision of single or three-phase systems.
The unit BF1 is equipped with an independent over (f>) and under-frequency supervision (f<) with separate adjustable pickup values and trip delays.
The measured frequency is continuously compared with the set reference values.
For frequency supervision the cycle duration is evaluated and so measuring is virtually independent on harmonics.
To avoid tripping during normal operation due to interference voltages, a fixed measuring repetition is used.
rate voltage Un: 110V, 230V, 400 V AC
frequency range at
50 Hz rated frequency : 46 - 54 Hz
60 Hz rater frequency : 55,2 - 64,8 Hz
hysteresis : 0,5% of nominal frequency
power consumption : 3,7 VA
thermal load carrying capacity : continuously 1,3 x Un
returning time : 250 ms
minimum operating time : 250 ms
max. breaking capacity ohm ic : 250 V AC/120 W DC
inductive : 500 V AC/75 W DC
rated current : 5 A
making current : 20 A
regulations : VDE 0435 part 303
at storage and operation : - 25 0C bis + 70 0C