Square D LUCA12FU TeSys U Standard Control Unit 3-Phase 3-12A Class 10 110-240VAC

The Square D LUCA12FU is a TeSys U standard control unit designed for 3-phase motor protection and control applications. This solid-state control unit integrates overload relay protection and control power source functionality into a compact, plug-in module that inserts into compatible TeSys U power bases (LUB12, LUB32, or LUB38) to form a complete motor starter controller.

Key Features and Protection:

• Adjustable current rating from 3A to 12A for motors up to 5.5kW at 400V
• Class 10 solid-state thermal overload protection with manual reset
• Comprehensive motor protection: overload, short circuit (13 x Irmax), overcurrent (14.2 x Ir), phase loss, and insulation fault
• Dual voltage control: 110-240V AC (50/60Hz) or 110-220V DC
• Operating temperature range: -25°C to 70°C (-13°F to 158°F)
• Front-side plug-in mounting for easy installation and replacement

Certifications and Compliance:

• IEC 60947-6-2 and UL 508 certified when used with LUB power base
• CSA, CCC, EAC, and Marine certified
• IP20 protection rating (front panel and wired terminals), IP40 front panel outside connection zone
• Green Premium compliant (RoHS/REACh)

Compatible with LUFC00, LUFN, and various LULC series communication modules for advanced control and monitoring capabilities. The control unit connects through terminals A1/A2 located in the power base for straightforward integration into motor control systems.