Schneider LUCB32BL Advanced control unit

The Schneider Electric LUCB32BL is an advanced control unit from the TeSys Ultra range, designed for motor control and motor protection applications. It covers a rated motor current adjustment range of 8...32 A with a 24 V DC control circuit, delivering Class 10 overload tripping alongside integrated earth fault, phase loss, and phase imbalance protection. Compatible with LUB32, LUB38, LUB320, and LUB380 power bases, it supports both basic protection and advanced motor management functions.

Technical specifications:

• Commercial reference: LUCB32BL
• Manufacturer: Schneider Electric
• EAN:
• Series / range: TeSys Ultra
• Product type: Advanced control unit
• Rated motor current adjustment range: 8...32 A
• Control circuit voltage [Uc]: 24 V DC (operating range: 20...27 V DC)
• Rated operating voltage [Ue]: 690 V AC
• Network frequency: 40...60 Hz
• Motor power: up to 15 kW at 400...440 V AC / 18.5 kW at 690 V AC
• Usage category: AC-41, AC-43, AC-44
• Overload tripping class: Class 10 per IEC 60947-6-2 and UL 508
• Tripping threshold: 14.2 x Ir +/- 20%
• Rated insulation voltage [Ui]: 690 V (IEC) / 600 V (UL/CSA)
• Rated impulse withstand voltage [Uimp]: 6 kV per IEC 60947-6-2
• Reset: Manual
• Mounting: Plug-in (front)
• Dimensions (W x H x D): 45 x 66 x 60 mm
• IP protection: IP20 (front panel and wired connections), IP40 (front panel, external connection zone) per IEC 60947-1
• Operating temperature: -25...70°C
• Storage temperature: -40...85°C
• Operating altitude: up to 2000 m
• Standards: IEC/EN 60947-6-2, UL 60947-4-1 (with phase barrier), CSA C22.2 No 60947-4-1 (with phase barrier)
• Certifications: CE, UL, CSA, CCC, EAC, ASEFA, ATEX, Marine

Features and benefits:

• Class 10 overload and short circuit protection with temperature compensation across -25...70°C
• Integrated earth fault protection and phase loss/phase imbalance detection
• 400 V SELV safe separation between control, auxiliary, and main circuits per IEC 60947-1
• Manual reset function for controlled motor restart after a trip
• Plug-in front mounting for fast assembly and replacement within the TeSys Ultra system
• Compatible with LUB32, LUB38, LUB320, LUB380 power bases and LU2B32BL/LU2B38BL reversing devices

Applications:

• Motor starter assemblies in industrial control panels and motor control centers
• Three-phase motor control in manufacturing and process automation
• Direct-on-line and reversing motor starter configurations
• Applications requiring ATEX or Marine-certified motor protection

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 LUCB32BL, Schneider Electric LUCB32BL, TeSys Ultra advanced control unit, motor protection control unit 32A.