New Original Schneider LUCA32FU LUCA Motor Control Unit
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New Original Schneider LUCA32FU TeSys U Standard Motor Control Unit
1. Product Overview
LUCA32FU is an original plug-in standard motor control unit developed by Schneider Electric for the modular TeSys U integrated motor starter system. It acts as the intelligent control and multi-protection core component, which needs to be directly plugged onto LUB series power base modules to assemble a complete all-in-one three-phase asynchronous motor starter unit.
This control unit features an adjustable current range of 8 A to 32 A, compatible control supply voltage covering 110–240 V AC and 110–220 V DC, with Class 10 inverse-time overload tripping characteristic. Adopting integrated thermal-magnetic protection architecture, it integrates overload protection, instantaneous short-circuit protection, phase loss protection, three-phase current unbalance protection and basic earth fault leakage protection all in one compact module. When applied under 400 V AC three-phase power grid conditions, it can match three-phase motors with maximum rated power up to 18.5 kW. Equipped with a front rotary adjustment dial for on-site current parameter setting and manual reset mode after fault tripping, it is widely used for medium-power fans, water pump units, conveyor machinery, packaging equipment and general industrial low-voltage control cabinets. The plug-and-play modular design enables rapid on-site replacement and maintenance without disassembling the whole motor starter assembly, greatly simplifying cabinet layout and equipment commissioning work. As a Green Premium eco-friendly component, it complies with global electrical safety and environmental protection directives.
2. Main Functions
- Continuously Adjustable Thermal Overload Protection (Class 10)
The front rotary knob allows stepless current adjustment from 8 A to 32 A. Following Class 10 standard inverse-time tripping curve, the unit will automatically cut off the control circuit under long-term motor overload operation to prevent motor winding overheating and permanent burnout. Built-in ambient temperature compensation function ensures stable tripping precision under fluctuating workshop temperature conditions.
- Instantaneous Magnetic Short-Circuit Protection
When sudden short-circuit faults occur inside motor windings or connecting cables, the magnetic trip element acts instantly to break huge short-circuit current within milliseconds, protecting downstream motors and upstream power distribution lines from severe damage caused by short-circuit surges.
- Comprehensive Three-Phase Power Supply Fault Monitoring
It sensitively detects single-phase power loss, three-phase current imbalance and motor locked rotor faults, and triggers timely protective tripping to avoid asymmetric power supply erosion on three-phase motor structures; basic earth fault detection is embedded to prevent electric leakage safety hazards.
- Manual Fault Reset Mechanism
After any protective tripping action, manual reset operation is mandatory to restore the starter to normal standby state. This design prohibits accidental automatic restart of mechanical equipment after faults, fully meeting industrial equipment maintenance safety specifications.
- Drive Control for Power Base Electromagnetic Coil
It receives external start-stop digital control signals to drive the electromagnetic coil installed inside matched LUB power bases, realizing remote automatic switching on and off of the three-phase main power circuit for driving motors.
- Parameter Anti-tampering & Visual Calibration Design
A transparent protective cover covers the adjustment dial after parameter configuration to avoid unauthorized personnel altering protection thresholds on site; clear scale markings guarantee accurate current setting for field electrical technicians.
3. Technical Characteristics
| Technical Parameter | Detailed Specification |
|---|---|
| Complete Model | LUCA32FU |
| Product Series | TeSys U LUCA Standard Motor Control Unit |
| Adjustable Rated Current Range | 8 A ~ 32 A |
| Applicable Motor Power (400 V AC) | 18.5 kW |
| Applicable Motor Power (690 V AC) | 30 kW |
| Control Supply Voltage | 110–240 V AC 50/60 Hz; 110–220 V DC |
| Overload Tripping Class | Class 10 |
| Short-Circuit Tripping Threshold | 14.2 × preset rated current |
| Integrated Protection Functions | Overload, Short-circuit, Phase Failure, Phase Unbalance, Earth Fault |
| Reset Mode | Manual Reset Only |
| Maximum Main Circuit Rated Voltage | 690 V AC |
| Operating Frequency Scope | 40 Hz ~ 60 Hz |
| Protection Degree | IP20 |
| Operating Ambient Temperature | -25 ℃ ~ +60 ℃ |
| Storage Temperature Range | -40 ℃ ~ +70 ℃ |
| Mounting Method | Direct plug-in installation on LUB series power bases |
| Housing Flame Retardant Level | UL94 V0 high-temperature resistant engineering plastic |
| Compliance Standards | IEC 60947-6-2, UL508, CSA, CCC, RoHS, REACH |
Core Technical Advantages
- All-in-one multi-protection modular design replaces discrete combinations of contactor plus thermal overload relay, effectively saving electrical cabinet installation space;
- Universal plug-in interface compatible with all non-reversing and reversing TeSys U power base modules;
- Built-in temperature compensation structure eliminates tripping deviation caused by ambient temperature changes;
- Compact unified dimension consistent with the whole LUCA product range for neat and orderly cabinet arrangement;
- Low-power consumption electronic circuit with excellent anti-electromagnetic interference performance for harsh industrial workshop environments.
4. Product Overall Dimensions & Weight
External Dimensions (Unit: Millimeter)
| Dimension Item | Exact Size |
|---|---|
| Overall Width | 45 |
| Overall Height | 66 |
| Overall Depth | 60 |
Weight Data
| Weight Category | Specific Value |
|---|---|
| Single Unit Net Weight | 135 g |
| Original Packaged Gross Weight | 158 g |
5. 10 Schneider LUCA Series Motor Control Units with Similar Functions
All listed items belong to TeSys U standard LUCA control units, equipped with thermal-magnetic comprehensive motor protection, plug-and-play installation and Class 10 tripping characteristics; differences mainly lie in adjustable current range and control supply voltage:
- LUCAX6FU 0.15~0.6A, 110-240V AC/DC Standard Control Unit
- LUCA1XFU 0.35~1.4A, 110-240V AC/DC Standard Control Unit
- LUCA05FU 1.25~5A, 110-240V AC/DC Standard Control Unit
- LUCA12FU 3~12A, 110-240V AC/DC Standard Control Unit
- LUCA18FU 5.5~18A, 110-240V AC/DC Standard Control Unit
- LUCA25FU 6.5~25A, 110-240V AC/DC Standard Control Unit
- LUCA38FU 9.5~38A, 110-240V AC/DC Standard Control Unit
- LUCA05BL 1.25~5A, 24V DC Low Voltage Control Unit
- LUCA12BL 3~12A, 24V DC Low Voltage Control Unit
- LUCA32BL 8~32A, 24V DC Low Voltage Control Unit
WHO WE ARE
Sobre nosotros
Located in Kunshan, China, Atifts Technology Co., Ltd. is a well-known enterprise specializing in electronic components distribution. We specialize in the sales of global brands of industrial automation components, with a wealth of experience in foreign product agents, and many of the world's leading manufacturers such as Keens, Schneider, SMC, ABB, Siemens, and other world-renowned manufacturers to establish a long-term and stable relations of cooperation.
Atifts Technology Co., Ltd. @ 2024
Over the years, we have always adhered to the "pioneering, pragmatic, standardized, innovative" management philosophy, and constantly promote the close integration of products and market demand. We firmly believe that only by constantly exploring new market areas, doing a good job in every detail, standardizing business processes, and continuously innovating products and services can we ensure that our products are more adaptable to market changes and meet the diversified needs of our customers.
Since the founding of the company, we have always adhered to the core concept of "survival by quality", and are committed to providing customers with high-quality electronic components. At the same time, we take specialized R & D manufacturing as the goal, market-oriented development strategy to ensure that our products are always in the forefront of the industry.
With excellent product quality, professional technical service and good market reputation, Kunshan Autofits Technology Co.,Ltd. has won the trust and support of our customers. We look forward to working with more partners hand in hand, to achieve long-term win-win relationship, and jointly promote the prosperity of the electronic components industry.
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