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Technical Specifications and Hardware Overview
This output module provides reliable signal switching for GE Fanuc CNC systems. The GE A03B-0801-C112 controls external actuators, relays, and indicator lamps. You will find this unit inside many legacy machine tool cabinets. Its compact construction fits into standard I/O racks without modification. The module weighs approximately 0.65 kilograms. Its dimensions measure 25 cm in height, 8 cm in width, and 12 cm in depth.
| Parameter | Specification |
|---|---|
| Brand | GE Fanuc Automation |
| Model | A03B-0801-C112 |
| Category | Discrete Output Module / Digital Output Unit |
| Weight | 0.65 kg |
| Height | 25 cm |
| Width | 8 cm |
| Depth | 12 cm |
| Number of Outputs | 16 points |
| Output Type | Transistor (sourcing) |
| Output Voltage Range | 12-24V DC |
| Maximum Current per Point | 0.5 Amps |
| Total Module Current | 4 Amps maximum |
| Energy Storage | None (no internal battery) |
| Component Count | Single PCB with 16 discrete output circuits |
Connectivity and Load Management
You connect field devices to the module via a front-panel screw terminal block. Each of the sixteen outputs drives a resistive or inductive load. The module draws its control power directly from the backplane. Consequently, you do not need any external logic supply. The output transistors switch rapidly for pulse-width modulation applications. Each point includes built-in flyback diode protection. This protection suppresses voltage spikes from inductive loads like relays or solenoids.
Installation and Operational Guidelines
You must mount this module in any available I/O slot of the CNC rack. The backplane provides 24V DC power for the output drivers. The GE A03B-0801-C112 stores no output states when you remove power. Therefore, your CNC controller must retain all critical output data. You should verify the total load current does not exceed 4 Amps. Exceeding this limit will trigger an overcurrent protection event. The module operates reliably between 0°C and 55°C ambient temperatures. Its transistor outputs respond within 0.5 milliseconds to control signals.