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Fanuc part number decoder
Enter a Fanuc part number (A06B, A20B, A860…) to see its category and series, how it's written, and whether we have it in stock.
How a Fanuc part number is built
Fanuc specifications ("drawing numbers") follow one pattern across motors, drives, boards and cables:
A06B-6114-H104#H580
- First block: the product category (A06B = motors and drives, A20B = circuit boards, A860 = encoders).
- Second block: the product series (6114 = αi servo amplifier module).
- Third block: the specific type or rating within that series.
- # suffix (not always present): variant or specification. For a direct swap it should match.
On A06B-6xxx amplifiers, the H at the start of the third block marks the unit type, and the digits after it the rating. The exact rating and axis count are on the unit's label. Circuit boards also carry a separate board version letter that can matter for compatibility.
This tool decodes to category and series. Fanuc doesn't publish a full key for the third block. For the exact rating or a compatible alternative, send us the number.
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Get an offerFanuc prefixes the decoder knows
Where two rows match, the longer (more specific) prefix wins.
CNC controls
| Prefix | Family | What it is |
|---|---|---|
A02B | CNC control unit | CNC units and control assemblies (complete controls, control sections, option assemblies). |
A03B | I/O module | I/O Unit modules and distributed I/O for Fanuc controls. |
Robots
| Prefix | Family | What it is |
|---|---|---|
A05B | Robot component | Robot parts: teach pendants, robot controller and mechanical unit components. |
Motors & drives
| Prefix | Family | What it is |
|---|---|---|
A06B | Motor or drive | Servo and spindle motors, amplifiers and power supplies. |
A06B-0 | AC servomotor | AC servomotors (α, αi, β, βi series). The model, e.g. αiF 8/3000, is on the motor's nameplate. |
A06B-1 | AC spindle motor | AC spindle motors (α, αi series). |
A06B-2 | AC servomotor | AC servomotors of the newer αi-B / βi-B series. |
A06B-6 | Amplifier / drive module | Servo amplifiers, spindle amplifiers and power supply modules. |
A06B-6087 | α power supply module (PSM) | Power supply module of the α series drive system. |
A06B-6088 | α spindle amplifier module (SPM) | Spindle amplifier module of the α series. |
A06B-6096 | α servo amplifier module (SVM) | Servo amplifier module of the α series. |
A06B-6110 | αi power supply module (PSM) | Power supply module of the αi series drive system. |
A06B-6111 | αi spindle amplifier module (SPM) | Spindle amplifier module of the αi series. |
A06B-6114 | αi servo amplifier module (SVM) | Servo amplifier module of the αi series (1, 2 or 3 axes). |
A06B-6117 | αi servo amplifier module (SVM) | Servo amplifier module of the αi series. |
A06B-6130 | βi servo amplifier | βiSV servo amplifier. |
Circuit boards
| Prefix | Family | What it is |
|---|---|---|
A16B | Printed circuit board | PCBs: main boards, axis cards, power and I/O boards. |
A17B | Printed circuit board | PCBs of older control generations. |
A20B | Printed circuit board | PCBs: main boards, CPU cards, axis cards, memory and option boards. |
Components
| Prefix | Family | What it is |
|---|---|---|
A50L | Power semiconductor module | Transistor / IGBT power modules used inside amplifiers. |
A61L | Display unit | CRT and LCD display units. |
A660 | Cable | Cables: feedback, power, I/O Link and communication cables. |
A860 | Encoder / sensor | Pulse coders (motor encoders), position sensors and spindle sensors. |
A90L | Fan | Cooling fans for amplifiers, controls and motors. |
A98L | Battery | Batteries for CNC memory and absolute encoder backup. |
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