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Picture of Standard control unit, TeSys Ultra, 3P, 9.5 to 38A, 690VAC, thermal magnetic protection, class 10, 110 to 240VAC/DC coil
SKU:

LUCA38FU

Standard control unit, TeSys Ultra, 3P, 9.5 to 38A, 690VAC, thermal magnetic protection, class 10, 110 to 240VAC/DC coil

Old price: $886.60 INC GST
$753.61 INC GST
Available for Shipping : 19-Jan-2026
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Standard control unit, TeSys Ultra, 3P, 9.5 to 38A, 690VAC, thermal magnetic protection, class 10, 110 to 240VAC/DC coil
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Manufacturer: Schneider Electric
Delivery date: 19-Jan-2026
Environmental Disclosure
Declaration of conformity
Catalog
Circularity Profile
Instruction sheet
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Product Data Sheet
TeSys U standard control unit to be inserted in power bases LUB38 to form a TeSys U starter controller, for 3-phase motor applications up to 18.5kW@400V. It provides full protection to motors with a rated current Ir 9.5-38A (Ir adjustable), overload tripping class 10, short circuit at 13 x Irmax, overcurrent at 14.2 x Ir, phase loss, insulation fault (protection of equipment only). To be used with a 110-240V AC / 110-220V DC voltage for the control of the starter (through the control terminals A1/A2 located in the power base). Certified when used in conjunction with a LUB power base (IEC, UL, CSA, CCC, EAC), Green Premium compliant (RoHS/REACh).

Products specifications

Attribute name Attribute value
Main
Device short name LUCA
Load type 3-phase motor - cooling: self-cooled
Device application motor protection, motor control
Network frequency 40...60 Hz
Product specific application basic protection requirements for motor starters: overload and short-circuit
Product compatibility reversing contactor breaker LU2B38FU, power base LUB380, power base LUB38
Tripping threshold 14.2 x Ir +/- 20 %
Function available manual reset, earth fault protection, protection against overload and short-circuit, protection against phase failure and phase imbalance
Utilisation category AC-43
Range TeSys
Motor power kW 22 kW at 690 V AC 50/60 Hz, 18.5 kW at 500 V AC 50/60 Hz, 18.5 kW at 400...440 V AC 50/60 Hz
Thermal overload class class 10 - frequency limit: 40-60 Hz - temperature compensation: -25-70 °C conforming to UL 508, class 10 - frequency limit: 40-60 Hz - temperature compensation: -25-70 °C conforming to IEC 60947-6-2
Product name TeSys Ultra
Product or component type standard control unit
Thermal protection adjustment range 9.5-38 A
Phase failure sensitivity yes
Range of product TeSys Ultra
[Ue] rated operational voltage 690 V AC
[Uc] control circuit voltage 110...220 V DC, 110...240 V AC
Complementary
Heat dissipation 3-3 W for control circuit with LUB38
Depth 60 mm
Safe separation of circuit 400 V SELV between the control or auxiliary circuit and the main circuit conforming to IEC 60947-1, 400 V SELV between the control and auxiliary circuits conforming to IEC 60947-1
Width 45 mm
Operating time 50 ms closing with LUB38 for control circuit, 35 ms opening with LUB38 for control circuit
Control circuit voltage limits 55 V for DC circuit 110...220 V drop-out, 55 V for AC circuit 110...240 V drop-out, 88...242 V for DC circuit 110...220 V in operation, 88...264 V for AC circuit 110...240 V in operation
Compatibility code LUCA
[Ui] rated insulation voltage 600 V conforming to CSA C22.2 No 60947-4-1, 600 V conforming to UL 60947-4-1, 690 V conforming to IEC 60947-6-2
Typical current consumption 25 mA at 110...220 V DC I rms sealed with LUB38, 25 mA at 110...220 V DC I rms sealed with LUB32, 25 mA at 110...240 V AC I rms sealed with LUB38, 25 mA at 110...240 V AC I rms sealed with LUB32, 280 mA at 110...220 V DC I maximum while closing with LUB38, 280 mA at 110...220 V DC I maximum while closing with LUB32, 280 mA at 110...240 V AC I maximum while closing with LUB38, 280 mA at 110...240 V AC I maximum while closing with LUB32
Standards CSA C22.2 No 60947-4-1, with phase barrier, UL 60947-4-1, with phase barrier, IEC 60947-6-2, EN 60947-6-2
[Uimp] rated impulse withstand voltage 6 kV conforming to IEC 60947-6-2
Fixing mode plug-in (front face)
Net weight 0.135 kg
Height 66 mm
Product certifications EAC (pending), CCC (pending), CSA, UL, CE
Environment
Resistance to fast transients 4 kV class 4 all circuits except for serial link conforming to IEC 61000-4-4, 2 kV class 3 serial link conforming to IEC 61000-4-4
Immunity to radioelectric fields 10 V conforming to IEC 61000-4-6
Fire resistance 650 °C conforming to IEC 60695-2-12, 960 °C parts supporting live components conforming to IEC 60695-2-12
Operating altitude 2000 m
Resistance to electrostatic discharge 8 kV level 4 on contact conforming to IEC 61000-4-2, 8 kV level 3 in open air conforming to IEC 61000-4-2
Protective treatment TH conforming to IEC 60068
Ambient air temperature for storage -40-85 °C
IP degree of protection IP40 front panel outside connection zone conforming to IEC 60947-1, IP20 other faces conforming to IEC 60947-1, IP20 front panel and wired terminals conforming to IEC 60947-1
Immunity to voltage dips 70 % / 500 ms conforming to IEC 61000-4-11
Immunity to microbreaks 3 ms
Vibration resistance 4 gn, 5-300 Hz, power poles closed conforming to IEC 60068-2-6, 2 gn, 5-300 Hz, power poles open conforming to IEC 60068-2-6
Shock resistance 15 gn power poles closed conforming to IEC 60068-2-27, 10 gn power poles open conforming to IEC 60068-2-27
Non-dissipating shock wave 2 kV common mode conforming to IEC 60947-6-2, 1 kV serial mode conforming to IEC 60947-6-2
Resistance to radiated fields 10 V/m 3 conforming to IEC 61000-4-3
Ambient air temperature for operation -25-70 °C
Packing Units
Unit Type of Package 1 1
Number of Units in Package 1 1
Package 1 Height 5.300 cm
Package 1 Width 8.200 cm
Package 1 Length 8.900 cm
Package 1 Weight 128.000 g
Unit Type of Package 2 2
Number of Units in Package 2 23
Package 2 Height 15.000 cm
Package 2 Width 30.000 cm
Package 2 Length 40.000 cm
Package 2 Weight 3.190 kg

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