Lutze — . 750680 - Monitoring relay
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Part No. 750680 Type LCR-PW-3-480-D-2U-24-240 Article on stock PU 1 piece Interface Technology Monitoring relay Load sensor 1 and 3-phase loads AC 480 V Function True power monitoring for 1 and 3-phase loadswith 48 settable thresholds (P1, P2)separately adjustable start-up suppression and trigger delayselectable error memoryTemperature monitoring of the motor coil with max. 6 PTCOne reset button;function selection via rotary switch2MIN Minimum monitoring2MIN+I< ON Minimum monitoring and recognition of shut-down consumers as GOOD status2MIN+I< Inv Minimum monitoring and recognition of shut-down consumers as errors2MAX Maximum monitoring2MAX+I< ON Maximum monitoring and recognition of shut-down consumers as errors2MAX+I< Inv Maximum monitoring and recognition of shut-down consumers as GOOD statusWIN Monitoring the range between thresholds Min and MaxWIN+I< ON Monitoring the range between the Min and Max thresholds and recognition of shut-down consumers as GOOD statusWIN+I< Inv Monitoring the range between the Min and Max thresholds and recognition of shut-down consumers as errorsMAX/MIN Maximum/minimum monitoringMAX/MIN+I< ON Maximum/minimum monitoring and Monitoring the range and recognition of shut-down consumers as GOOD statusMAX/MIN+I< Inv Maximum/minimum monitoring and Monitoring the range and recognition of shut-down consumers as errors Start-up suppression, settable 0 – 100 s trigger delay, settable 0.1 – 50 s Supply status LED green Start bridge status LED green flashing Output relay status LED yellow Threshold error status LED red Trigger delay status LED red flashing Status I/O LED yellow Over-temperature status LED red Dimensions (w × h × d) 45×90×105 mm Colour of the housing light grey Housing material PA 6.6 V0 Protection class IP20 Connection cross-section 1×0.5 to 2.5 mm2 with AE1×4 mm2 without AE2×0.5 to 1.5 mm2 with AE2×2.5 mm2 without AE Installation position any Weight 0,4 kg/piece Approvals cULus Rated voltage range AC/DC 24 V – 240 V Tolerance AC -15 %/+10 %, DC -20 %/+25 % Rated frequency 16 Hz @ AC 24 V, 48 Hz – 400 Hz @ AC 24 V – 240 V Power consumption 3.5 VA (3 W) Operating time 100 % ED Recovery time 500 ms Voltage drop >30 % of the supply voltage Over voltage category III acc. IEC 60664-1 Measurement surge voltage 4 kV Number of channels 2 Switching element Relays Contact type Change over contact Measurement voltage AC 250 V Switching voltage AC250 V Switching current max. 3A (5A at a distance >5mm) Protection device 5 A, quick-acting Mechanical service life 20 × 106 (1000 VA) Electrical service life 2 × 105 (1000 VA) Switching frequency 60/min @100 VA, 6/min @ 1000 VA Over voltage category III acc. IEC 60664-1 Measurement surge voltage 4 kV Basic accuracy ±2 % (end of scale) Frequency response ±0.025 %/Hz Tolerance of setting ≤5 % (end of scale) Repeat accuracy ≤2 % Temperature error ±0.02 %/°C Measuring variable 0.75 kW, 1.5 kW, 3 kW, 6 kW reversible Wave form AC Sinus 10 – 400 Hz Wave form PWM 10 – 100 Hz (sine-assessed) Measurement input 1-phase AC 0 – 480 V Measurement input 3-phase 3ph 0 – 480/277 V Overload capability 550 V (1-phase), 550/318 V (3-phase) Input resistance 1.25 MΩ Measurement input current, 1-phase 0.15A – 6A (0.75 – 1.5 kW), 0.3 – 12 A (3 – 6 kW) Overload capability current 12 A permanent Current interruption 150 mA (0.75 – 1.5 kW), 180 mA (3 – 6 kW) Current flow sensor 300 mA (0.75 – 1.5 kW), 360 mA (3 – 6 kW) Switching threshold P1 10 % – 120 % from PN Switching threshold P2 5 % – 110 % from PN Hysteresis 1 % @ Maximum measuring range’ Over voltage category III acc. IEC 60664-1 Measurement surge voltage 4 kV Sum of cold resistance <1.5 kΩ Response value ≥3.6 kΩ ( relay drops) Drop-off value ≤1.8 kW (Relay is energised) Line short-circuit No shut-off Measurement voltage ≤7.5 V at R ≤4.0 kW (acc. IEC 60947-8) Function Fault store Load none Cable length 10 m max., twisted Reset NC contact in supply circuit Temperature range according to UL -25 °C … +40 °C Temperature range -25 °C … +55 °C Storage temperature range -25°C…70°C Relative air humidity 15 % to 85 % acc. IEC 60721-3-3 Class 3K3 Degree of polution 3 Vibration resistance 10 – 55 Hz 0.35 mm acc. IEC60068-2-6 Impact resistance 15 g 11 ms acc. IEC 60068-2-27 Dimensions PIN assignment Технические данные 750680-us-data-sheet-010196180.pdf