
Roll over image to zoom in

LUCB18FU
Thermal protection adjustment range:
load type:
Protection against overload and short-circuit
Control unit includes electronic components and the current adjustment dial
Modular, plug & play structure helps you to perform quick maintenance
Direct access to detailed information for every motor starter of your installation
Advanced motor management system
Environmental Data
Total lifecycle Carbon footprint
23
Use Better
Packaging made with recycled cardboard
Yes
Use Again
Recyclability potential, in %
56
Take-back
No
TeSys U control and diagnostic unit to be inserted in advanced power bases LUB320, LUB380, LUB380 to form a TeSys U starter controller, for 3-phase motor applications up to 7.5kW@400V. It provides full protection to motors with a rated current Ir 4.5-18A (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). It provides a thermal overload alarm to be used locally using a LUFDA module or remotely using a LULC module, and a test push button for overload simulation. 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, Marine), Green Premium compliant (RoHS/REACh).
Range | TeSys |
---|---|
Range of product | TeSys Ultra |
Product name | TeSys Ultra |
Device short name | LUCB |
Product or component type | Advanced control unit |
Device application | Motor control Motor protection |
Product specific application | Basic protection and advanced functions, communication |
main function available | Protection against phase failure and phase imbalance Manual reset Earth fault protection Protection against overload and short-circuit |
Product compatibility | Power base LUB32 Power base LUB38 Power base LUB320 Power base LUB380 Reversing contactor breaker LU2B32FU Reversing contactor breaker LU2B38FU |
[Ue] rated operational voltage | 690 V AC |
Network frequency | 40...60 Hz |
Load type | 3-phase motor - cooling: self-cooled |
Utilisation category | AC-43 AC-44 AC-41 |
Motor power kW | 7.5 kW at 400...440 V AC 50/60 Hz 9 kW at 500 V AC 50/60 Hz 15 kW at 690 V AC 50/60 Hz |
rated motor current adjustment range | 4.5…18 A |
Thermal overload class | Class 10 - frequency limit: 40…60 Hz - temperature compensation: -25…70 °C conforming to IEC 60947-6-2 Class 10 - frequency limit: 40…60 Hz - temperature compensation: -25…70 °C conforming to UL 508 |
Tripping threshold | 14.2 x Ir +/- 20 % |
Phase failure sensitivity | Yes |
[Uc] control circuit voltage | 110...240 V AC 110...220 V DC |
Control circuit voltage limits | 88...264 V for AC circuit 110...240 V in operation 88...242 V for DC circuit 110...220 V in operation 55 V for AC circuit 110...240 V drop-out 55 V for DC circuit 110...220 V drop-out |
---|---|
Typical current consumption | 280 mA at 110...240 V AC I maximum while closing with LUB32 280 mA at 110...240 V AC I maximum while closing with LUB38 280 mA at 110...220 V DC I maximum while closing with LUB32 280 mA at 110...220 V DC I maximum while closing with LUB38 25 mA at 110...240 V AC I rms sealed with LUB32 25 mA at 110...240 V AC I rms sealed with LUB38 25 mA at 110...220 V DC I rms sealed with LUB32 25 mA at 110...220 V DC I rms sealed with LUB38 |
Heat dissipation | 3 W for control circuit with LUB32 3 W for control circuit with LUB38 |
Operating time | 35 ms opening with LUB32 for control circuit 35 ms opening with LUB38 for control circuit 50 ms closing with LUB32 for control circuit 50 ms closing with LUB38 for control circuit |
Reset | Manual reset |
Standards | 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 |
Product certifications | CE UL CSA CCC EAC ASEFA ATEX Marine |
[Ui] rated insulation voltage | 690 V conforming to IEC 60947-6-2 600 V conforming to UL 60947-4-1 600 V conforming to CSA C22.2 No 60947-4-1 |
[Uimp] rated impulse withstand voltage | 6 kV conforming to IEC 60947-6-2 |
Safe separation of circuit | 400 V SELV between the control and auxiliary circuits conforming to IEC 60947-1 400 V SELV between the control or auxiliary circuit and the main circuit conforming to IEC 60947-1 |
Fixing mode | Plug-in (front face) |
Width | 45 mm |
Height | 66 mm |
Depth | 60 mm |
Compatibility code | LUCB |
IP degree of protection | IP20 front panel and wired terminals conforming to IEC 60947-1 IP20 other faces conforming to IEC 60947-1 IP40 front panel outside connection zone conforming to IEC 60947-1 |
---|---|
Protective treatment | TH conforming to IEC 60068 |
Ambient air temperature for operation | -25…70 °C |
Ambient air temperature for storage | -40…85 °C |
Operating altitude | 2000 m |
Fire resistance | 960 °C parts supporting live components conforming to IEC 60695-2-12 650 °C conforming to IEC 60695-2-12 |
Shock resistance | 10 gn power poles open conforming to IEC 60068-2-27 15 gn power poles closed conforming to IEC 60068-2-27 |
Vibration resistance | 2 gn, 5…300 Hz, power poles open conforming to IEC 60068-2-6 4 gn, 5…300 Hz, power poles closed conforming to IEC 60068-2-6 |
Resistance to electrostatic discharge | 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 |
Non-dissipating shock wave | 1 kV serial mode conforming to IEC 60947-6-2 2 kV common mode conforming to IEC 60947-6-2 |
Resistance to radiated fields | 10 V/m 3 conforming to IEC 61000-4-3 |
Resistance to fast transients | 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 |
Immunity to radioelectric fields | 10 V conforming to IEC 61000-4-6 |
Immunity to microbreaks | 3 ms |
Immunity to voltage dips | 70 % / 500 ms conforming to IEC 61000-4-11 |
Unit Type of Package 1 | PCE |
---|---|
Number of Units in Package 1 | 1 |
Package 1 Height | 5.000 cm |
Package 1 Width | 8.200 cm |
Package 1 Length | 9.000 cm |
Package 1 Weight | 127.000 g |
Unit Type of Package 2 | S02 |
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 | 3.208 kg |
Warranty | 18 months |
---|
Schneider Electric aims to achieve Net Zero status by 2050 through supply chain partnerships, lower impact materials, and circularity via our ongoing “Use Better, Use Longer, Use Again” campaign to extend product lifetimes and recyclability.
Total lifecycle Carbon footprint
23
Environmental Disclosure
Use Better
Packaging made with recycled cardboard
Yes
Packaging without single use plastic
Yes
Compliant with Exemptions
SCIP Number
0f22867c-27de-46b9-965c-a40bbb8a3f0a
REACh Regulation
Halogen-free status
Halogen free plastic parts product
PVC free
Yes
Use Again
Recyclability potential, in %
56
End of life manual availability
Take-back
No
WEEE Label

The product must be disposed on European Union markets following specific waste collection and never end up in rubbish bins
Items usually bought together
Need more information? Check our technical FAQs!
Easily find answers to the most frequently asked questions.