Schneider LUB32 TeSys U Power Base 32A Non-Reversing

The Schneider Electric LUB32 is the TeSys Ultra 32 A power base for non-reversing motor control and motor protection applications. This 3-pole unit operates up to 690 V AC at 40-60 Hz with a 32 A thermal current rating. It supports utilization categories AC-41, AC-43, and AC-44 and delivers a service breaking capacity of up to 50 kA at 440 V.

Technical specifications:

• Commercial reference: LUB32
• Manufacturer: Schneider Electric
• EAN:
• Series / range: TeSys Ultra (TeSys)
• Product type: Power base, non-reversing applications
• Number of poles: 3P
• Thermal current [Ith]: 32 A
• Rated operational current [Ie]: 28.5 A at <= 440 V; 23 A at 500 V; 21 A at 690 V
• Rated operational voltage [Ue]: 690 V AC, 40-60 Hz
• Utilization 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 AC/DC; 48-72 V AC/DC; 110-240 V AC; 110-220 V DC
• Rated insulation voltage [Ui]: 690 V (IEC 60947-6-2)
• Rated impulse withstand voltage [Uimp]: 6 kV
• Mechanical durability: 15 million cycles
• Max operating cycle: 3600 cycles/h
• Mounting: DIN rail or screw mounting (plate)
• Connection type: Screw terminal blocks
• Power circuit cable range: 1-10 mm² rigid; 1-6 mm² flexible
• Dimensions (W x H x D): 45 x 154 x 126 mm
• Weight: 0.9 kg
• IP rating: IP20 (IEC 60947-1); IP40 front panel outside connection zone
• Operating temperature: -25 to 60 °C (with LUCM); -25 to 70 °C (with LUCA/LUCB/LUCC/LUCD)
• Certifications: CE, UL, CSA, CCC, EAC, ASEFA, ATEX, Marine

Features and benefits:

• Non-reversing 3-pole base compatible with TeSys Ultra control units LUCA, LUCB, LUCC, LUCD, and LUCM
• High 50 kA service breaking capacity at 440 V for robust short-circuit protection
• Integrated 1 NO + 1 NC auxiliary contacts including mirror contact function per IEC 60947-1
• Wide control voltage range from 24 V to 240 V AC/DC for flexible panel integration
• ATEX and Marine certified for hazardous area and marine installations

Applications:

• Non-reversing motor starters in industrial automation and machine-building panels
• Motor control centers requiring direct-on-line drive control
• Pump and fan motor control in HVAC and building services
• Hazardous area motor control in ATEX-classified environments

Compliant with IEC 60947-6-2, 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 LUB32, Schneider Electric LUB32, TeSys Ultra 32A motor base.