Description
🔧 FANUC A06B-6124-H103 – Alpha i Servo Amplifier Module (Single-Axis / Medium Power)
FANUC A06B-6124-H103 Servo Amplifier
🧠 Model Description
A06B-6124-H103 is a FANUC Alpha i (αi) single-axis servo amplifier module from the 6124 series, designed for medium-power applications. It is commonly used for single-axis servo motors that require more current than low-power modules like H102.
⚙️ Key Technical Details
- Type: AC Servo Amplifier
- Series: Alpha i (αi) – 6124 series
- Variant: H-type (standard module)
- Axes: 1-axis
- Current Rating: Medium (~10–15A typical, depending on configuration)
- Communication: FSSB (Fiber optic servo bus) compatible
⚙️ What “H103” Means
- H = Standard amplifier (full-size module)
- 1 = Single-axis module
- 03 = Medium-power rating within the 6124 series
👉 Simple explanation: H103 = single-axis, medium-power standard module
⚙️ What It Does
This amplifier:
- Drives one servo motor
- Controls:
- Position
- Speed
- Torque
- Interfaces with CNC via FSSB for motion commands and feedback
Ideal for:
- Medium-load axes on CNC machines
- Tool changers or rotary tables with higher torque requirements
🏭 Applications
- Single-axis CNC axes
- Medium-duty automation tasks
- Applications where H102 (low power) would be insufficient
🔍 Key Features
- ✔ Single-axis, medium-power module
- ✔ Standard H-type design (larger footprint than compact C-type)
- ✔ Compatible with αi servo motors
- ✔ Supports FSSB communication with FANUC CNC
🧠 Simple Explanation
👉 A06B-6124-H103 is a medium-power, single-axis FANUC servo amplifier for applications requiring more torque and current than low-power modules, typically used for medium-load auxiliary axes.

