LUCB32FU – Manual reset, motor protection control unit
The Schneider LUCB32FU is an advanced control unit from the TeSys Ultra range designed for motor protection and control with a manual reset mechanism. It operates with a control circuit voltage of 110...240 V AC or 110...220 V DC, drawing 280 mA while closing and 25 mA sealed. The unit plugs into the TeSys Ultra contactor base via a front-face plug-in fixing mode, allowing quick replacement without disturbing the power wiring. Physical footprint: 1.8 in (45 mm) wide, 2.6 in (66 mm) tall, 2.4 in (60 mm) deep. Front panel protection IP20; other faces IP20.
Mounting and environmental ratings
The LUCB32FU is rated for operating altitudes up to 2000 m, with thermal overload class 10 covering 40...60 Hz and ambient -25...70 °C. Heat dissipation is 3 W with the matching LUB32 or LUB38 control circuit. It withstands shock of 10 gn with poles open and 15 gn with poles closed, and vibration of 2 gn (open) or 4 gn (closed) across 5–300 Hz.
Standards and certifications
The control unit complies with EN 60947-6-2, IEC 60947-6-2, UL 60947-4-1, and CSA C22.2 No 60947-4-1 with phase barrier. Fire resistance: parts supporting live components withstand 960 °C, others 650 °C per IEC 60695-2-12.
