Schneider LUCA18BL Standard control unit

The Schneider Electric LUCA18BL is a standard control unit from the TeSys Ultra range, designed for motor management and protection with a rated current adjustment range of 4.5 to 18 A and a 24 V DC control circuit. It delivers Class 10 overload and short-circuit protection and supports motor powers up to 15 kW at 690 V AC, making it suited to demanding motor starter applications.

Technical specifications:

• Commercial reference: LUCA18BL
• Manufacturer: Schneider Electric
• EAN:
• Series / range: TeSys Ultra
• Product type: Standard control unit
• Rated current adjustment range: 4.5...18 A
• Control circuit voltage: 24 V DC (operating range: 20...27 V DC)
• Rated operational voltage: 690 V AC
• Network frequency: 40...60 Hz
• Overload tripping class: Class 10
• Tripping threshold: 14.2 x Ir +/- 20%
• Motor power: 7.5 kW at 400...440 V AC / 9 kW at 500 V AC / 15 kW at 690 V AC
• Usage categories: AC-41, AC-43, AC-44
• Rated insulation voltage: 690 V (IEC) / 600 V (UL, CSA)
• Rated impulse withstand voltage: 6 kV
• IP protection: IP20 (front panel and wired terminals) / IP40 (front panel, external connection zone)
• Operating temperature: -25...70 °C
• Storage temperature: -40...85 °C
• Operating altitude: 2000 m
• Mounting: Plug-in (front)
• Dimensions (W x H x D): 45 x 66 x 60 mm
• Weight: 0.135 kg
• Certifications: CE, UL, CSA, CCC, EAC, ATEX, Marine

Features and benefits:

• Class 10 overload and short-circuit protection with temperature compensation from -25 to 70 °C per IEC 60947-6-2
• Phase loss and phase imbalance detection for enhanced motor safety
• Earth fault protection as a standard built-in function
• Manual reset for controlled motor restart after a fault event
• Compatible with TeSys Ultra power bases LUB32, LUB38, LUB320, and LUB380
• Fast switching: 35 ms opening and 70 ms closing when used with LUB32 or LUB38

Applications:

• Direct-on-line motor starters in industrial control and automation panels
• Reversing starter assemblies using compatible reversing units LU2B32BL or LU2B38BL
• Motor protection in HVAC, pumping, and conveyor drive systems up to 15 kW
• Machine control cabinets requiring compact 45 mm motor management solutions

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 LUCA18BL, Schneider Electric LUCA18BL, TeSys Ultra standard control unit, Schneider motor protection control unit.