Schneider LUB12 TeSys U Power Base 12A Non-Reversing

The Schneider Electric LUB12 is a TeSys Ultra 3-pole power base for non-reversing motor control applications, rated at 12 A with a maximum operational voltage of 690 V AC. As the core module of the TeSys U modular system, it accepts compatible control units and provides a service breaking capacity of up to 50 kA at 230/440 V.

Technical specifications:

• Commercial reference: LUB12
• Manufacturer: Schneider Electric
• EAN:
• Series / range: TeSys Ultra
• Product type: Power base for non-reversing applications
• Application: Motor control and motor protection
• Number of poles: 3P
• Rated operational current [ie]: 12 A at <= 440 V, 9 A at 690 V
• Rated operational voltage [ue]: 690 V AC
• Utilisation category: AC-41, AC-43, AC-44
• Service breaking capacity [ics]: 50 kA at 230/440 V, 10 kA at 500 V, 4 kA at 690 V
• Auxiliary contacts: 1 NO + 1 NC
• Control circuit voltage [Uc]: 24 V to 240 V AC/DC
• Mounting: DIN rail or screw-fixed plate
• Connection type: Screw terminal blocks
• Dimensions (W x H x D): 45 x 154 x 126 mm
• Weight: 0.9 kg
• IP protection: IP20 (front panel and terminals), IP40 (front panel outside connection zone)
• Operating temperature: -25...70 °C (with LUCA/LUCB/LUCC/LUCD), -25...60 °C (with LUCM)
• Certifications: CE, UL, CSA, CCC, EAC, ASEFA, ATEX, Marine

Features and benefits:

• Modular 3-pole base accepting TeSys U control units (LUCA, LUCB, LUCC, LUCD, LUCM) for scalable motor management
• Service breaking capacity up to 50 kA at 230/440 V for robust short-circuit protection across standard network voltages
• Wide control voltage range from 24 V to 240 V AC/DC for flexible panel integration
• Rated for 15 million mechanical cycles at up to 3600 operating cycles per hour

Applications:

• Motor starter panels in industrial automation and machine tool control
• Pump and fan motor control in process plants and building services
• Low-voltage switchgear and control gear assemblies requiring modular motor management

Compliant with IEC/EN 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 LUB12, Schneider Electric LUB12, TeSys U motor starter base.