Fanuc ai Power Supply 400VAC-input A06B-6120-C030

A06B-6120-C030 – Description

The part number A06B-6120-C030 is a Power Supply Module (PSM) from the αi (Alpha i) drive system by FANUC.

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🔧 Basic Identification

• Series: A06B-6120
• Type: Power Supply Module (PSM)
• Class: 30-class (high-capacity unit)
• Typical equivalent: aiPS-30 / PSM-30HVi

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⚙️ Function

• Converts 3-phase AC input (400–480V) into high-voltage DC (~600–700V DC)
• Supplies power to:
  • Multiple servo amplifiers
  • Spindle amplifier(s)
• Provides the main DC bus for the entire CNC drive system

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📊 Typical Specifications (30-class module)

• Power rating: ~30 kW
• Input current: ~60–70 A
• High regenerative capacity (handles braking energy from large machines)
• Built-in protection:
  • Overvoltage
  • Overcurrent
  • Thermal faults

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🏭 Applications

• Large CNC machining centers
• Heavy-duty CNC lathes
• Multi-axis high-load machines
• Industrial automation lines with high power demand