84873022 Crouzet Реле управления / реле контроля фаз

Технические характеристики: Supply Supply voltage Un 3 x 208 →3 x 480 V AC * Voltage supply tolerance -12 % / +10 % Operating range 183 →528 V AC AC supply voltage frequency 50 / 60 Hz ±10 % Galvanic isolation of power supply/measurement No Power consumption at Un 22 VA in 400 VAC, 50 Hz Immunity from micro power cuts 10 ms Inputs and measuring circuit Measurement ranges 183 →528 V AC Selection of phase-phase nominal voltage Un 208 - 220 - 380 - 400 - 415 - 440 - 480 V Frequency of measured signal 50 →60 Hz ± 10 % Max. measuring cycle time 150 ms/True RMS measurement Voltage threshold adjustment 2 →20 % of selected Un  (-2 to -12 % across the 3 x 208 V AC range / -2 to -17 % across the 3 x 220 V AC range / 2 to 10 % across the 3 x 480 V AC range) Voltage threshold hysteresis 2 % of fixed Un Asymmetry threshold hysteresis 2 % of fixed Un Asymmetry threshold adjustment 5 to 15 % of selected Un Display precision ± 3 % of the displayed value Repetition accuracy with constant parameters ± 0,5 % Measuring error with voltage drift < 1 % across the whole range Measuring error with temperature drift < 0,05 %/ °C Maximum regeneration (phase failure) 70 % Timing Delay on thresold crossing 0.1 to 10 s 0 +10 % Repetition accuracy with constant parameters ± 3 % Reset time 1500 ms Delay on pick-up ≤ 650 ms Alarm on delay time max. < 200 ms Output Type of output 1 single pole changeover relay Type of contacts No cadmium Maximum breaking voltage 250 V AC/DC Max. breaking current 5 A AC/DC Min. breaking current 10 mA / 5 V DC Electrical life (number of operations) 1 x 105 Breaking capacity (resistive) 1250 VA AC Maximum rate 360 operations/hour at full load Operating categories acc. to IEC/EN 60947-5-1 AC 12, AC 13, AC 14, AC 15, DC 12, DC 13, DC 14 Mechanical life (operations) 30 x 106