Skip to main content
Log in
Schneider Electric LUCA1XB

Schneider Electric LUCA1XB TeSys Ultra Control Unit, 24V AC

MPNLUCA1XB
Active

Schneider Electric TeSys Ultra standard control unit, LUCA1XB, 24V AC, 14.2 x Ir tripping threshold, Class 10 thermal overload.

$35.00Ref. price · indicative, final on quote
Schneider Electric LUCA1XB datasheet (PDF)
StockContact for availability
MOQ1 pcs
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
How we verify every order →

Specifications

LUCA1XB key specifications
ParameterValue
Load type3-phase motor self-cooled
Range of productTeSys Ultra
Product or component typeStandard control unit
Immunity to voltage dips70 % / 500 ms IEC 61000-4-11
Coil voltage24 V AC
Voltage690 V IEC 60947-6-2 600 V UL 60947-4-1 600 V CSA C22.2 No 60947-4-1
Control circuit voltage limits20...26.5 V AC 24 V in operation 14.5 V AC 24 V drop-out
[Ue] rated operational voltage690 V AC
[Uimp] rated impulse withstand voltage6 kV IEC 60947-6-2
Typical current consumption140 mA 24 V AC I maximum while closing with LUB12 220 mA 24 V AC I maximum while closing with LUB32 220 mA 24 V AC I maximum while closing with LUB38 70 mA 24 V AC I rms sealed with LUB12 90 mA 24 V AC I rms sealed with LUB32 90 mA 24 V AC I rms sealed with LUB38
Rated motor current adjustment range0.35...1.4 A
Motor power0.25 kW 400...440 V AC 50/60 Hz

All specifications

LUCA1XB additional specifications
ParameterValue
Network frequency40...60 Hz
Phase failure sensitivityYes
Utilisation categoryAC-43 AC-44 AC-41
IP degree of protectionIP20 front panel and wired terminals IEC 60947-1 IP20 other faces IEC 60947-1 IP40 front panel outside connection zone IEC 60947-1
Shock resistance10 gn power poles open IEC 60068-2-27 15 gn power poles closed IEC 60068-2-27
Operating altitude6561.68 ft (2000 m)
Vibration resistance2 gn 5...300 Hz power poles open IEC 60068-2-6 4 gn 5...300 Hz power poles closed IEC 60068-2-6
Non-dissipating shock wave1 kV serial mode IEC 60947-6-2 2 kV common mode IEC 60947-6-2
Depth2.4 in (60 mm)
Width1.8 in (45 mm)
Height2.6 in (66 mm)
StandardsEN 60947-6-2 IEC 60947-6-2 UL 60947-4-1, with phase barrier CSA C22.2 No 60947-4-1, with phase barrier
RangeTeSys
CategoryUS10I1122397
Fixing modePlug-in (front face)
Operating time35 ms opening with LUB12 control circuit 35 ms opening with LUB32 control circuit 35 ms opening with LUB38 control circuit 70 ms closing with LUB12 control circuit 70 ms closing with LUB32 control circuit 70 ms closing with LUB38 control circuit
Fire resistance1760 °F (960 °C) parts supporting live components IEC 60695-2-12 1202 °F (650 °C) IEC 60695-2-12
Heat dissipation2 W control circuit with LUB12 3 W control circuit with LUB32 3 W control circuit with LUB38
Device short nameLUCA
Compatibility codeLUCA
Device applicationMotor control Motor protection
Tripping threshold14.2 x Ir +/- 20 %
Protective treatmentTH IEC 60068
Thermal overload classClass 10 40...60 Hz -13...158 °F (-25...70 °C) IEC 60947-6-2 Class 10 40...60 Hz -13...158 °F (-25...70 °C) UL 508
Immunity to microbreaks3 ms
Main function availableProtection against phase failure and phase imbalance Earth fault protection Protection against overload and short-circuit Manual reset
Safe separation of circuit400 V SELV between the control and auxiliary circuits IEC 60947-1 400 V SELV between the control or auxiliary circuit and the main circuit IEC 60947-1
Product specific applicationBasic protection requirements for motor starters: overload and short-circuit
Resistance to fast transients2 kV 3 serial link IEC 61000-4-4 4 kV 4 all circuits except for serial link IEC 61000-4-4
Resistance to radiated fields9.1 V/m (10 V/m) 3 IEC 61000-4-3
Immunity to radioelectric fields10 V IEC 61000-4-6
Ambient air temperature for storage-40...185 °F (-40...85 °C)
Ambient air temperature for operation-13...158 °F (-25...70 °C)
Resistance to electrostatic discharge8 kV 3 in open air IEC 61000-4-2 8 kV 4 on contact IEC 61000-4-2

Product details

The LUCA1XB: This is a standard control unit for the TeSys Ultra motor starter series, delivering basic protection against overload, short-circuit, phase failure, and earth faults. Tripping threshold is 14.2 x Ir (±20%). Thermal overload class is Class 10 per IEC 60947-6-2 and UL 508.

Mounts via front-face plug-in onto the TeSys Ultra base. The front panel and wired terminals are IP20 rated; other faces reach IP40, so it can handle typical panel environments. Power consumption at 24 V AC ranges from 2 W to 3 W depending on the control circuit. Closing current peaks at 140 mA or 220 mA, sealed current at 70 mA or 90 mA. This matters for control transformer sizing.

Frequently asked questions

What is the depth of the LUCA1XB?

The depth is 2.4 in (60 mm). Width is 1.8 in (45 mm), height is 2.6 in (66 mm).

MPN
LUCA1XB