84873028 Crouzet Реле управления реле контроля фаз

Описание Технические характеристики 84873028 Crouzet Реле управления реле контроля фаз: 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 No (current limiting) Power consumption at Un 4 VA in AC/0.5 W in DC Immunity from micro power cuts 20 ms / 20,4 V Inputs and measuring circuit 3-phase control Measurement ranges 3 x 208 →3 x 480 VAC * Operating range 176 →528 VAC Frequency of measured signal 50 / 60 Hz ±10 % Input resistance 602 KΩ / line Contrôle thermique Maximum voltage of heat detection circuit 3.6 V (T1-T2 open) Short-circuit current 7 mA (T1, T2 short-circuited) Maximum heat detector resistance at 20 °C 1500 Ω Trip threshold 3100 Ω± 10 % Reset threshold 1650 Ω± 10 % Short-circuit detection range 0 →15 Ω± 5 Ω Resistance measurement temperature drift ± 0,1 % / °C max. Repetition accuracy with constant parameters ± 0,5 % Timing Delay on thresold crossing 300 ms max. (phase) 300 ms typical (temperature) Y1 input response time (Y1-T1 contact) and PB typically 50 ms Reset time 10 s max. at 264 V AC Delay on pick-up 500 ms Output Type of output 2 NO relays 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 AC/DC Electrical life (number of operations) 1 x 104 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 60664-1 400 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