Schneider LUCA12BL Standard control unit

The Schneider Electric LUCA12BL is a Class 10 standard control unit from the TeSys Ultra range, designed for three-phase motor protection and control. It offers a rated motor current adjustment range of 3...12 A with a 24 V DC control circuit, supporting motor loads up to 9 kW at 690 V AC and providing overload, short-circuit, earth fault, and phase loss protection in a single device.

Technical specifications:

• Commercial reference: LUCA12BL
• Manufacturer: Schneider Electric
• EAN:
• Series / range: TeSys Ultra
• Product type: Standard control unit
• Rated operational voltage [Ue]: 690 V AC
• Control circuit voltage [Uc]: 24 V DC (operating range: 20...27 V DC)
• Rated motor current adjustment range: 3...12 A
• Overload tripping class: Class 10, temperature compensation -25...70°C
• Tripping threshold: 14.2 x Ir +/- 20%
• Motor power: 5.5 kW at 400...440 V AC / 9 kW at 690 V AC
• Utilization category: AC-41, AC-43, AC-44
• Network frequency: 40...60 Hz
• Rated insulation voltage [Ui]: 690 V (IEC) / 600 V (UL, CSA)
• Rated impulse withstand voltage [Uimp]: 6 kV
• Mounting: Plug-in (front)
• Dimensions (W x H x D): 45 x 66 x 60 mm
• Weight: 0.135 kg
• IP protection: IP20 (front panel and terminals) / IP40 (front panel, external connection zone)
• Operating temperature: -25...70°C
• Storage temperature: -40...85°C
• Operating altitude: up to 2000 m
• Certifications: CE, UL, CSA, CCC, EAC, ATEX, Marine
• Standards: IEC/EN 60947-6-2, UL 60947-4-1, CSA C22.2 No 60947-4-1

Features and benefits:

• Class 10 overload and short-circuit protection with integrated phase loss and phase imbalance detection
• Earth fault protection as a standard built-in main function
• Manual reset for controlled motor restart following a fault trip
• Compatible with LUB12, LUB32, LUB38 power bases and LU2B reversing units for flexible starter configurations
• Wide control voltage tolerance with 14.5 V DC voltage-dip hold-in for reliable operation during supply disturbances
• ATEX and Marine certified for use in hazardous and marine environments

Applications:

• Three-phase motor protection in industrial automation and machine control panels
• Pump, compressor, and conveyor motor starters
• HVAC and fan motor control applications
• Reversing motor starter configurations using compatible LU2B reversing units
• Motor control in hazardous or marine environments requiring ATEX or Marine certification

Compliant with IEC/EN 60947-6-2, UL 60947-4-1, and CSA C22.2 No 60947-4-1. Part of the Schneider Electric TeSys Ultra range.

Also known as: Schneider LUCA12BL, Schneider Electric LUCA12BL, TeSys Ultra standard control unit, motor protection relay unit.