84871120 Crouzet Реле управления реле управления током

Описание Технические характеристики 84871120 Crouzet Реле управления реле управления током: Supply Supply voltage Un 24 V →240 V AC/DC Voltage supply tolerance -15 % / +10 % Operating range 20,4 V →264 V AC/DC Polarity with DC voltage No AC supply voltage frequency 50 / 60 Hz ± 10 % Galvanic isolation of power supply/measurement Power consumption at Un 3.5 VA in AC/0.6 W in DC Immunity from micro power cuts 50 ms Inputs and measuring circuit Frequency of measured signal 0 Hz, 40 →70 Hz Max. measuring cycle time 30 ms/True RMS measurement Threshold adjustment 10 →100 % of the range Maximum 3-phase voltage 277 / 480 V (3-phase mains with earth) Adjustable hysteresis 5 →50 % of displayed threshold Display precision ±10 % of full scale 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 Timing Delays on power up (Ti) 1 →20 s (0, +10 %) Delay on thresold crossing Tt 0,1 →3 s (0, +10 %) Repetition accuracy with constant parameters ± 2 % Reset time 1500 ms Delay on pick-up < 300 ms Output Type of output 1 double 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 AC12, AC13, AC14, AC15, DC12, DC13, DC14 Mechanical life (operations) 30 x 106 Insulation Nominal insulation voltage IEC/EN 60664-1 250 V Insulation coordination (IEC/EN 60664-1) Overvoltage category III : degree of pollution 3 Rated impulse withstand voltage (IEC/EN 60664-1) 4 KV (1,2 / 50 μs) Dielectric strength (IEC/EN 60664-1) 2 KV AC 50 Hz 1 min. Insulation resistance (IEC/EN 60664-1) > 500 MΩ / 500 V DC