Description
FANUC A06B-6140-H055 – Power Supply Module (aiPS-55 / PSM-55i) – Description
The FANUC A06B-6140-H055 is a high-capacity ALPHA i Power Supply Module (aiPS-55 / PSM-55i) designed for FANUC CNC and servo/spindle drive systems. It converts incoming AC power into a stable DC bus supply, ensuring reliable operation of multiple servo amplifiers and spindle modules in high-demand industrial environments.
This module is part of the A06B-6140 ALPHA i series (second-generation power supply units) and is widely used in large CNC machining centers, including milling, turning, and multi-axis production machines. It operates on 200–240V AC three-phase input and delivers a regulated DC output to support heavy-duty CNC operations.
The H055 variant is an ultra high-power module (~65 kW class), making it suitable for large CNC machines with multiple axes and high-load spindle systems. It is built for continuous operation, high efficiency, and long-term reliability in demanding manufacturing environments.
Key Features
- Original FANUC ALPHA i Power Supply Module (aiPS-55)
- 200–240V AC three-phase industrial input
- Converts AC to stable DC bus voltage (~283–339V DC)
- Ultra high power capacity (~65 kW class)
- Supports multiple servo and spindle amplifier modules
- High current handling (approx. 200A+ input range)
- Built-in protection: overvoltage, overcurrent, thermal safety
- Integrated diagnostics for CNC system monitoring
Applications
- Large CNC machining centers
- Heavy-duty milling and turning machines
- Multi-axis industrial automation systems
- FANUC CNC systems (0i / 16i / 18i / 21i / 30i / 31i series)
- Servo and spindle drive power distribution systems
Benefits
- Provides stable and continuous power for high-load systems
- Improves CNC machine uptime and production efficiency
- Supports large spindle drives and multiple servo axes
- Protects expensive drive modules from electrical faults
- Designed for long-term, heavy industrial use
Technical Highlights
- Input Voltage: 200–240V AC (3-phase)
- Output Voltage: ~283–339V DC
- Power Rating: ~65 kW
- Application: Multi-axis CNC drive systems
Product Type
- CNC Power Supply Module (ALPHA i Series – High Power)

