Schneider Electric LUCB32FU Protection Unit

Schneider Electric LUCB32FU Advanced Control Unit for TeSys Ultra is a protection and diagnostic module for 3‑phase motor starters, designed to be inserted into TeSys U power bases to guard motors up to 32 A (Ir 8–32 A, adjustable). It accepts a coil supply of 110–240 V AC or DC, enabling flexible control wiring. The unit provides overload protection to class 10, short‑circuit protection at 13 × Irmax, and overcurrent protection at 14.2 × Ir, along with phase loss and insulation fault sensing to help prevent equipment damage. When paired with TeSys U power bases such as LUB32 or LUB38, LUCB32FU forms a complete motor starter with integrated protection and diagnostics for 3‑phase motors in industrial panels.