Schneider LUCB12BL Advanced control unit

The Schneider Electric LUCB12BL is an advanced control unit in the TeSys Ultra range, designed for motor control and protection applications. With a current adjustment range of 3...12 A and a 24 V DC control circuit voltage, it delivers Class 10 overload protection with phase-loss detection for three-phase motors up to 9 kW at 690 V AC.

Technical specifications:

• Commercial reference: LUCB12BL
• Manufacturer: Schneider Electric
• EAN:
• Series / range: TeSys Ultra
• Product type: Advanced control unit
• Rated motor current adjustment range: 3...12 A
• Control circuit voltage: 24 V DC (operating range: 20...27 V DC)
• Rated operational voltage: 690 V AC
• Network frequency: 40...60 Hz
• Motor power: 5.5 kW at 400...440 V AC 50/60 Hz; 9 kW at 690 V AC 50/60 Hz
• Trip class: Class 10
• Trip threshold: 14.2 x Ir +/- 20%
• Phase loss sensitivity: Yes
• Utilization category: AC-41, AC-43, AC-44
• Rated insulation voltage: 690 V (IEC 60947-6-2) / 600 V (UL/CSA)
• Rated impulse withstand voltage: 6 kV
• Reset: Manual
• Mounting: Plug-in (front)
• Dimensions (WxHxD): 45 x 66 x 60 mm
• IP rating: IP20 (front panel and wired terminals), IP40 (front panel, external connection zone)
• Operating temperature: -25...70 °C
• Storage temperature: -40...85 °C
• Certifications: CE, UL, CSA, CCC, EAC, ASEFA, ATEX, Marine
• Weight: 124 g

Features and benefits:

• Basic overload and short-circuit protection combined with advanced communication functions
• Phase loss and phase imbalance protection for three-phase motor circuits
• Earth fault protection for increased motor and installation safety
• Manual reset for controlled motor restart following a trip event
• Compatible with power bases LUB12, LUB32, LUB38, LUB120, LUB320, and LUB380
• Wide operating temperature range of -25...70 °C with temperature compensation per IEC 60947-6-2

Applications:

• Three-phase motor control in industrial automation and machine tool panels
• Motor protection in pump, fan, and compressor drive systems
• Reversing motor starter assemblies using compatible LU2B12BL, LU2B32BL, or LU2B38BL reversing devices
• Conveyor and material handling motor management in manufacturing environments

Compliant with EN/IEC 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 LUCB12BL, Schneider Electric LUCB12BL, TeSys Ultra advanced control unit, motor protection control unit.