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
- LUCL18BL
- Model no
- LUCL
- CE
- EAC
TeSys UltraSchneider Electric LUCL18BL TeSys U Standard Control Unit 4.5-18 A 24 V DC Motor Starter Module
TeSys U magnetic control unit, 4.5-18 A short-circuit protection, 24 V DC coil, for LUB32/LUB38 bases.
Description
About the LUCL
About the LUCL
The Schneider Electric LUCL18BL is a TeSys U magnetic control unit that plugs into a LUB32 or LUB38 power base to form a TeSys U starter-controller for 3-phase motors up to 7.5 kW at 400 V. It sets dial-adjustable short-circuit protection from 4.5 to 18 A, tripping at 14.2 x Ir, and runs on a 24 V DC control circuit.
Certifications & Standards
- CE
- EAC
- ATEX
- IEC 60947-6-2
- UL 60947-4-1
- CSA C22.2 No 60947-4-1
Selection Notes
The LUCL18BL covers the mid current band of the LUCL lineup for LUB32/LUB38 bases; pick the 1X variant below 1.4 A or the 32/38 A units above 18 A on the same bases. Because this control unit only supplies short-circuit protection and manual reset, it is meant for applications where a connected variable speed drive or soft starter already handles overload protection — pairing it with an unprotected motor leaves no thermal overload coverage. The 24 V DC coil fits PLC or relay outputs already running on 24 V DC control rails; pick the ES or FU coil variants where the control supply is AC.
Specification
Full specification
Main 17
| Range | TeSys |
|---|---|
| Range of product | TeSys Ultra |
| Product name | TeSys Ultra |
| Device short name | LUCL |
| Product or component type | Magnetic control unit |
| Device application | Motor control, Motor protection |
| Product specific application | Protection of variable speed drive or soft startsoft stop unit |
| main function available | Manual reset, Short-circuit protection |
| Product compatibility | Power base LUB32, Power base LUB38, Power base LUB320, Power base LUB380, Reversing contactor breaker LU2B32BL, Reversing contactor breaker LU2B38BL |
| [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-41, AC-44 |
| 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 |
| Tripping threshold | 14.2 x Ir +/- 20 % |
| [Uc] control circuit voltage | 24 V DC |
Complementary 15
| Control circuit voltage limits | 20...27 V for DC circuit 24 V in operation, 14.5 V for DC circuit 24 V drop-out |
|---|---|
| Typical current consumption | 220 mA at 24 V DC I maximum while closing with LUB32, 220 mA at 24 V DC I maximum while closing with LUB38, 80 mA at 24 V DC I rms sealed with LUB32, 80 mA at 24 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, 70 ms closing with LUB32 for control circuit, 70 ms closing with LUB38 for 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, EAC, ATEX |
| [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 |
| Net weight | 0.135 kg |
| Compatibility code | LUCL |
Environment 15
| 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 |
Show all 71 specifications ↓ Show less ↑24 more values in Identification, Contractual warranty, Logistics.
Identification 7
| Part number | LUCL18BL |
|---|---|
| Type designation | LUCL |
| Brand | Schneider Electric |
| Condition | New, factory sealed |
| Source | Schneider Electric and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
Contractual warranty 1
| Warranty (in months) | 18 |
|---|
Logistics 16
| Unit Type of Package 1 | PCE |
|---|---|
| Number of Units in Package 1 | 1 |
| Package 1 Height | 5.500 cm |
| Package 1 Width | 8.000 cm |
| Package 1 Length | 10.300 cm |
| Package 1 Weight | 129.000 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 | 3.242 kg |
| Shipping weight | 0.135 kg |
| Ships from | Türkiye |
| Dispatch | — |
| Stock | On request |
Source: manufacturer data · Last verified: 30 Oct 2026
Documents
Documents for LUCL18BL
No documents are on file for this part yet.
Ask us for the datasheet
Certifications
Certifications and standards
- CE
- EAC
- EN 60947-6-2
- IEC 60947-6-2
- UL 60947-4-1
- with phase barrier
Quick answers
Questions about the LUCL
What is the rated current of LUCL?
The rated current of LUCL is 18 A.
Which supply voltage is LUCL rated for?
The rated operational voltage of LUCL is 24 V DC.
What is the HS code of LUCL for customs?
The tariff (HS) code on file for LUCL is 853650.
Where does LUCL ship from, and how fast?
LUCL 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
