1. General Information

• Model: ZA81L-0001-0164 (standard: A81L-0001-0164)

• Type: Three‑phase AC input line reactor

• Brand: GE FANUC

• Function: Suppress voltage surges, spikes and harmonics; protect servo/spindle amplifiers; stabilize input voltage; reduce EMI.

• Application: FANUC CNC servo power systems, machine tool cabinets, industrial robots.

• Compatibility: PSM‑30HVi, PSM‑45HVi, PSMR series power supplies; αi / βi servo amplifiers.

2. Electrical Specifications

• Rated voltage: 400 / 480 V AC (3‑phase)

• Rated continuous current: 75 A

• Rated inductance: 0.18 mH (typical)

• Frequency: 50 / 60 Hz

• Insulation class: H (180 °C)

• Max. temperature rise: ≤80 K

• Inductance tolerance: ±5%

• Standards: CE (IEC/EN 61800‑5‑1), UL/cUL 508C

3. Environmental & Mechanical

• Operating temperature: −10 °C ~ +40 °C

• Storage temperature: −20 °C ~ +60 °C

• Humidity: 10–85% RH, non‑condensing

• Protection: IP20

• Mounting: Floor‑mounted in control cabinet

• Cooling: Natural convection (passive)

• Weight: ≈ 8.5 kg

4. Features

• Efficiently suppresses voltage spikes and harmonic currents

• Reduces EMI between grid and drives

• High‑temperature windings for long‑term stability

• Compact, rugged construction; high vibration resistance

• Low noise, easy wiring & maintenance

5. Installation

1. Disconnect all power before installation.

2. Bolt reactor firmly to a flat, rigid surface.

3. Connect 3‑phase AC to input terminals (L1/L2/L3).

4. Connect output terminals to drive power input.

5. Ground the housing with a low‑resistance earth wire.

6. Torque terminals securely; test power‑on operation.

6. Maintenance & Troubleshooting

• Clean dust; check terminals every 3–6 months.

• Retighten terminals if loose.

• Overheating: Check load current and ventilation.

• Loud hum: Inspect core/coil clamping.

• Voltage fluctuation alarms: Verify wiring and model compatibility.

7. Safety Precautions

• Installation/service only by qualified electricians.

• Always cut power before access—risk of electric shock.

• Do not touch hot surfaces during operation.

• Maintain ≥50 mm clearance around reactor for cooling.