IEC 60947-4-1 Standards for Contactors and Motor Starters Explained
Master AC-3 rating selection under IEC 60947-4-1 for contactors and motor starters, including utilization categories and coordination types. Shop at Stoklink.
- Part number
- LUCA18FU
- Model no
- LUCA
- UL
- CSA
- CE
- CCC
- EAC
- Marine
TeSys UltraSchneider Electric LUCA18FU TeSys U Standard Control Unit 4.5-18 A 110-240 V AC Motor Starter Module
TeSys U standard control unit, 4.5-18 A adjustable, Class 10, 110-240 V AC/DC coil
Description
About the LUCA
About the LUCA
The Schneider Electric LUCA18FU is a TeSys U standard control unit providing adjustable thermal-magnetic motor protection from 4.5 to 18 A. Plugged into a LUB32 or LUB38 power base, it forms a complete starter-controller with Class 10 overload tripping, phase-failure sensing, and earth-fault detection for 3-phase motors up to 7.5 kW at 400 V, controlled from a 110-240 V AC / 110-220 V DC supply.
Certifications & Standards
- CE
- UL
- CSA
- CCC
- EAC
- IEC 60947-6-2
- UL 60947-4-1
- CSA C22.2 No 60947-4-1
Selection Notes
The LUCA18FU shares the LUCA18B's 4.5-18 A range and 7.5 kW rating but is wired for a wide 110-240 V AC / 110-220 V DC control supply, useful where the panel's control transformer is already at mains voltage rather than 24 V. Its closing current draw (280 mA) is the same order as the 48 V LUCA18ES-equivalent band, so upstream control-relay sizing is unaffected by the voltage choice. Pick the 24 V LUCA18B instead on panels standardized on a 24 V control bus.
Specification
Full specification
Main 19
| Range | TeSys |
|---|---|
| Range of Product | TeSys Ultra |
| Product name | TeSys Ultra |
| Device short name | LUCA |
| Product or Component Type | Standard control unit |
| Device Application | Motor control, Motor protection |
| Product Specific Application | Basic protection requirements for motor starters: overload and short-circuit |
| main function available | Earth fault protection, Manual reset, Protection against phase failure and phase imbalance, 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 self-cooled |
| Utilisation category | AC-41, AC-44, AC-43 |
| Motor power kW | 7.5 kW 400...440 V AC 50/60 Hz, 9 kW 500 V AC 50/60 Hz, 15 kW 690 V AC 50/60 Hz |
| rated motor current adjustment range | 4.5…18 A |
| Thermal overload class | Class 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 |
| Tripping threshold | 14.2 x Ir +/- 20 % |
| Phase failure sensitivity | Yes |
| [Uc] control circuit voltage | 110...240 V AC, 110...220 V DC |
Complementary 15
| Control circuit voltage limits | 88...264 V AC 110...240 V in operation, 88...242 V DC 110...220 V in operation, 55 V AC 110...240 V drop-out, 55 V DC 110...220 V drop-out |
|---|---|
| Typical current consumption | 280 mA 110...240 V AC I maximum while closing with LUB32, 280 mA 110...240 V AC I maximum while closing with LUB38, 280 mA 110...220 V DC I maximum while closing with LUB32, 280 mA 110...220 V DC I maximum while closing with LUB38, 25 mA 110...240 V AC I rms sealed with LUB32, 25 mA 110...240 V AC I rms sealed with LUB38, 25 mA 110...220 V DC I rms sealed with LUB32, 25 mA 110...220 V DC I rms sealed with LUB38 |
| Heat dissipation | 3 W control circuit with LUB32, 3 W control circuit with LUB38 |
| Operating time | 35 ms opening with LUB32 control circuit, 35 ms opening with LUB38 control circuit, 50 ms closing with LUB32 control circuit, 50 ms closing with LUB38 control circuit |
| 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 IEC 60947-6-2, 600 V UL 60947-4-1, 600 V CSA C22.2 No 60947-4-1 |
| [Uimp] rated impulse withstand voltage | 6 kV IEC 60947-6-2 |
| Safe separation of circuit | 400 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 |
| Fixing mode | Plug-in (front face) |
| Width | 1.8 in (45 mm) |
| Height | 2.6 in (66 mm) |
| Depth | 2.4 in (60 mm) |
| Net Weight | 0.298 lb(US) (0.135 kg) |
| Compatibility code | LUCA |
Environment 15
| IP degree of protection | IP20 front panel and wired terminals IEC 60947-1, IP20 other faces IEC 60947-1, IP40 front panel outside connection zone IEC 60947-1 |
|---|---|
| Protective treatment | TH IEC 60068 |
| Ambient air temperature for operation | -13…158 °F (-25…70 °C) |
| Ambient Air Temperature for Storage | -40…185 °F (-40…85 °C) |
| Operating altitude | 6561.68 ft (2000 m) |
| Fire resistance | 1760 °F (960 °C) parts supporting live components IEC 60695-2-12, 1202 °F (650 °C) IEC 60695-2-12 |
| Shock resistance | 10 gn power poles open IEC 60068-2-27, 15 gn power poles closed IEC 60068-2-27 |
| Vibration resistance | 2 gn 5…300 Hz power poles open IEC 60068-2-6, 4 gn 5…300 Hz power poles closed IEC 60068-2-6 |
| Resistance to electrostatic discharge | 8 kV 3 in open air IEC 61000-4-2, 8 kV 4 on contact IEC 61000-4-2 |
| Non-dissipating shock wave | 1 kV serial mode IEC 60947-6-2, 2 kV common mode IEC 60947-6-2 |
| Resistance to radiated fields | 9.1 V/m (10 V/m) 3 IEC 61000-4-3 |
| Resistance to fast transients | 2 kV 3 serial link IEC 61000-4-4, 4 kV 4 all circuits except for serial link IEC 61000-4-4 |
| Immunity to radioelectric fields | 10 V IEC 61000-4-6 |
| Immunity to microbreaks | 3 ms |
| Immunity to voltage dips | 70 % / 500 ms IEC 61000-4-11 |
Show all 63 specifications ↓ Show less ↑14 more values in Identification, Contractual warranty, Logistics.
Identification 8
| Part number | LUCA18FU |
|---|---|
| Type designation | LUCA |
| Brand | Schneider Electric |
| Condition | New, factory sealed |
| Source | Schneider Electric and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 3389110364040 |
Contractual warranty 1
| Warranty (in months) | 18 |
|---|
Logistics 5
| Country of origin | FR |
|---|---|
| Shipping weight | 0.135 kg |
| Ships from | Türkiye |
| Dispatch | — |
| Stock | On request |
Source: manufacturer data · Last verified: 30 Oct 2026
Documents
Documents for LUCA18FU
No documents are on file for this part yet.
Ask us for the datasheet
Certifications
Certifications and standards
- UL
- CSA
- CE
- CCC
- EAC
- Marine
- EN 60947-6-2
- IEC 60947-6-2
- UL 60947-4-1
- with phase barrier
Quick answers
Questions about the LUCA
What is the rated current of LUCA?
The rated current of LUCA is 18 A.
Which supply voltage is LUCA rated for?
The rated operational voltage of LUCA is 110–240 V AC.
What is the HS code of LUCA for customs?
The tariff (HS) code on file for LUCA is 853650.
What is the EAN of LUCA?
The EAN (GTIN) of LUCA is 3389110364040.
Where does LUCA ship from, and how fast?
LUCA ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival.
Guides
Guides for motor starters
NEMA vs IEC Contactor Standards: Key Differences and Size Comparison
Compare AC3 rating IEC contactors versus NEMA size codes, with cross-reference tables, derating formulas, and selection tips for engineers. Shop at Stoklink.
How to Size a Contactor for a 3-Phase Motor: Engineer Guide
Size a contactor for a 3-phase motor using IEC 60947-4-1 methodology, AC-3 vs AC-4 categories, NEMA equivalents, and Type 2 coordination. Shop at Stoklink.
Reviews
Customer reviews
Series
Schneider Electric TeSys Ultra
- Brand
- Schneider Electric
- Series
- TeSys Ultra
