Product

• Model: LU2B12ES
• Range: TeSys Ultra / TeSys U
• Type: Reversing power base
• Function: Forward/reverse motor starter power base
• Requires compatible LUC control unit

Electrical Ratings

• Poles: 3P
• Rated operational voltage (Ue): up to 690 V AC
• Network frequency: 40…60 Hz
• Conventional thermal current (Ith): 12 A
• Rated operational current (Ie):
  • 12 A @ ≤440 V
  • 12 A @ 500 V
  • 9 A @ 690 V

Control Circuit

• Coil voltage:
  • 48…72 V AC (50/60 Hz)
  • 48…72 V DC
• Operating voltage range:
  • 38.5…72 V AC
  • 38.5…93 V DC
• Drop-out voltage:
  • 29 V AC/DC

Reversing Function

• Integrated forward/reverse contactor assembly
• Built-in mechanical and electrical interlocking
• Equipped with LU2MB0ES reverser module
• Suitable for:
  • Conveyors
  • Hoists
  • Bidirectional motor applications

Auxiliary Contacts

• Auxiliary contacts: 1 NO + 1 NC
• Contact types:
  • Linked contacts compliant with IEC 60947-4-1
  • Mirror contact compliant with IEC 60947-1

Protection & Breaking Capacity

• Utilisation categories:
  • AC-41
  • AC-43
  • AC-44
• Rated service breaking capacity (Ics):
  • 50 kA @ 230 V
  • 50 kA @ 440 V
  • 10 kA @ 500 V
  • 4 kA @ 690 V

Mechanical & Environmental Data

• Mounting:
  • DIN rail mounting
  • Screw fixing
• Dimensions:
  • Width: 45 mm
  • Height: 224 mm
  • Depth: 126 mm
• Weight:
  • Approx. 1.27 kg
• Protection degree:
  • IP20
  • IP40 front face outside terminal area
• Operating temperature:
  • −25 °C to +70 °C

Standards & Certifications

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