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Range
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TeSys
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Product name
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TeSys U
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Device short name
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LU2B
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Product or component type
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Reversing power base
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Device application
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Motor control
Motor protection
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Product compatibility
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Control unit LUC.X6B
Control unit LUC.1XB
Control unit LUC.05B
Control unit LUC.12B
Control unit LUC.18B
Control unit LUC.32B
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Poles description
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3P
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Suitability for isolation
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Yes
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[Ue] rated operational voltage
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690 V AC for power circuit
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Network frequency
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40...60 Hz
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[Ith] conventional free air thermal current
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32 A
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[Ie] rated operational current
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28.5 A at <= 440 V
23 A at 500 V
21 A at 690 V
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Utilisation category
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AC-43
AC-44
AC-41
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[Ics] rated service breaking capacity
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50 kA at 230 V
50 kA at 440 V
10 kA at 500 V
4 kA at 690 V
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Auxiliary contact composition
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1 NO + 1 NC
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Auxiliary contacts type
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Type linked contacts (1 NO + 1 NC) conforming to IEC 60947-4-1
Type mirror contact (1 NC) conforming to IEC 60947-1
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[Uc] control circuit voltage
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24 V AC 50/60 Hz
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Control circuit voltage limits
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14.5 V AC drop-out
20...26.5 V AC in operation
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Typical current consumption
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2360 mA at 24 V AC I maximum while closing
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Heat dissipation
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3 W for control circuit with LUCA, LUCB, LUCC, LUCD
1.8 W for control circuit with LUCM
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Inrush restraint duration
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25 ms AC 50/60 Hz
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Safety reliability level
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B10d = 1369863 cycles contactor with nominal load conforming to EN/ISO 13849-1
B10d = 20000000 cycles contactor with mechanical load conforming to EN/ISO 13849-1
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Operating time
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150 ms with change of direction for power circuit
35 ms opening for control circuit
70 ms closing for control circuit
75 ms without change of direction for power circuit
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Mechanical durability
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15 Mcycles
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Maximum operating rate
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3600 cyc/h
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Product certifications
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CE
UL
CSA
CCC
EAC
ASEFA
ATEX
Marine
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Standards
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EN 60947-6-2
IEC 60947-6-2
UL 60947-4-1, with phase barrier
CSA C22.2 No 60947-4-1, with phase barrier
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[Ui] rated insulation voltage
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690 V conforming to IEC 60947-6-2 (pollution degree 3)
600 V conforming to UL 60947-4-1
600 V conforming to CSA C22.2 No 60947-4-1
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[Uimp] rated impulse withstand voltage
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6 kV conforming to IEC 60947-6-2
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Safe separation of circuit
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400 V SELV between the control and auxiliary circuits conforming to IEC 60947-1 appendix N
400 V SELV between the control or auxiliary circuit and the main circuit conforming to IEC 60947-1 appendix N
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Fixing mode
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Clipped (DIN rail)
Screw-fixed (plate)
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Connections - terminals
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Power circuit: screw clamp terminals 1 cable(s) 1…10 mm² rigid
Power circuit: screw clamp terminals 1 cable(s) 1…6 mm² flexible with cable end
Power circuit: screw clamp terminals 1 cable(s) 2.5…10 mm² flexible without cable end
Power circuit: screw clamp terminals 2 cable(s) 1…6 mm² flexible with cable end
Power circuit: screw clamp terminals 2 cable(s) 1…6 mm² rigid
Power circuit: screw clamp terminals 2 cable(s) 1.5…6 mm² flexible without cable end
Control circuit: without connection
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Tightening torque
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Power circuit: 1.9…2.5 N.m flat screwdriver 6 mm
Power circuit: 1.9…2.5 N.m Philips No 2 screwdriver 6 mm
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Width
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45 mm
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Height
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224 mm
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Depth
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126 mm
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Net weight
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1.25 kg
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Compatibility code
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LU2B
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IP degree of protection
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IP20 conforming to IEC 60947-1 (front panel and wired terminals)
IP20 conforming to IEC 60947-1 (other faces)
IP40 conforming to IEC 60947-1 (front panel outside connection zone)
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Protective treatment
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TH conforming to IEC 60068
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Ambient air temperature for operation
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-25…60 °C with LUCM
-25…70 °C with LUCA, LUCB, LUCC, LUCD
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Ambient air temperature for storage
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-40…85 °C
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Fire resistance
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960 °C parts supporting live components conforming to IEC 60695-2-12
650 °C conforming to IEC 60695-2-12
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Operating altitude
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2000 m
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Shock resistance
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10 gn power poles open conforming to IEC 60068-2-27
15 gn power poles closed conforming to IEC 60068-2-27
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Vibration resistance
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2 gn (f= 5…300 Hz) power poles open conforming to IEC 60068-2-27
4 gn (f= 5…300 Hz) power poles closed conforming to IEC 60068-2-27
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Resistance to electrostatic discharge
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8 kV level 3 in open air conforming to IEC 61000-4-2
8 kV level 4 on contact conforming to IEC 61000-4-2
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Non-dissipating shock wave
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1 kV serial mode conforming to IEC 60947-6-2
2 kV common mode conforming to IEC 60947-6-2
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Resistance to fast transients
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2 kV class 3 serial link conforming to IEC 61000-4-4
4 kV class 4 all circuits except for serial link conforming to IEC 61000-4-4
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Resistance to radiated fields
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10 V/m 3 conforming to IEC 61000-4-3
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Immunity to radioelectric fields
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10 V conforming to IEC 61000-4-6
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Immunity to microbreaks
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3 ms for control circuit
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Immunity to voltage dips
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70 % / 500 ms conforming to IEC 61000-4-11
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EU RoHS Declaration