Schneider Electric TeSys U Power Base LUB12, 12A, Single Direction, 3P

The Schneider Electric TeSys U LUB12 is a versatile power base designed for motor control applications. As part of the TeSys U range, it offers a compact and modular solution for single-direction motor starters. This power base is rated for 12 A operational current and supports motor power up to 5.5 kW at 400 V AC (AC-3). It is compatible with a wide range of TeSys U control units, allowing flexible configuration for various protection and control needs.

Advantages

Modular design simplifies installation and maintenance. The LUB12 integrates seamlessly with TeSys U control units, reducing wiring and panel space. Its robust construction ensures reliable performance in industrial environments.

Suitable for

• Motor control applications requiring single-direction starting
• Industrial automation and machinery
• Panel building and distribution systems

Key specifications

• Product Type: Power Base
• Range: TeSys U
• Rated Operational Current (Ie): 12 A
• Motor Power (AC-3, 400V): 5.5 kW
• Motor Power (AC-3, 230V): 3 kW
• Control Type: Single direction
• Poles: 3P
• Mounting: 35 mm DIN rail, Plate
• Rated Insulation Voltage (Ui): 690 V AC
• Rated Impulse Withstand Voltage (Uimp): 6 kV
• Protection Rating: IP20 (front face)
• Standards: IEC 60947-6-2, UL 508, CSA C22.2 No 14
• Operating Temperature: -25 to 70 °C
• Storage Temperature: -40 to 85 °C
• Electrical Durability: 100,000 cycles
• Connections: Screw clamp terminals, 1.5...6 mm² (AWG 16...AWG 10)

Recommendations

For a complete motor starter, pair the LUB12 power base with a compatible TeSys U control unit (e.g., LUCA, LUCB, LUCC, LUCD, LUCM) and a thermal overload relay. Ensure proper sizing based on motor full-load current.