Schneider Electric LUCB32B TeSys U Advanced Control Unit 8-32 A 24 V AC Motor Starter Module

The Schneider Electric LUCB32B is a TeSys U advanced control unit providing adjustable thermal-magnetic motor protection from 8 to 32 A plus diagnostic outputs. Plugged into an advanced LUB320 or LUB380 power base, it forms a starter-controller with Class 10 overload tripping, phase-failure sensing, earth-fault detection, a thermal-alarm signal, and a test pushbutton for 3-phase motors up to 15 kW at 400 V, controlled from a 24 V AC supply.

Technical Specifications

Certifications & Standards

• CE
• UL
• CSA
• CCC
• EAC
• IEC 60947-6-2
• UL 60947-4-1
• CSA C22.2 No 60947-4-1

Selection Notes

The LUCB32B is the highest-current advanced control unit, 8-32 A and 15 kW at 400 V, with a thermal-alarm output on top of the LUCA32B's bare Class 10 protection. It fits the same LUB32/LUB38 bases, so specifying it over the plain LUCA32B does not change the base selection, only the diagnostic wiring. Pick the DC-coil LUCB32BL equivalent on a 24 V DC control bus.