GE A03B-0807-C161 Output Module | 16 Digital, 0.3 A, 0.38 kg

This output module sends digital control signals to machine actuators and relays. It receives command data from the main CNC processor via the backplane. You can install this unit into any standard GE CNC rack slot. The module suits solenoid valves, contactors, and indicator lamp applications.

Technical Specifications & Key Parameters

Parameter	Detail
Product Model	GE A03B-0807-C161
Category	Output Module
Dimensions (L x W)	200 mm x 130 mm
Weight	0.38 kg (0.84 lbs)
Number of Outputs	16 digital output points
Output Type	Transistor sinking (NPN)
Output Voltage Rating	24 V DC (10–30 V DC range)
Output Current	0.3 A per point, 2.5 A total per module
Response Time	0.5 ms ON, 0.5 ms OFF
Energy Storage	220 µF capacitor (holds output states for 5 ms)
Operating Voltage	5V DC from backplane
Current Draw	250 mA at 5V DC
Connector Type	One 50-pin ribbon cable header
Status Indicators	16 red LEDs (one per channel)
Protection	Short circuit and overtemperature protection

Detailed Feature Overview

GE A03B-0807-C161 provides 16 sinking transistor outputs for 24 V DC loads. Each channel handles 0.3 A continuously for small actuators. The total module current cannot exceed 2.5 A at any time. Short circuit protection shuts down an individual channel automatically. Consequently, a wiring fault does not damage the entire module.

The module responds within 0.5 milliseconds for both ON and OFF transitions. This speed suits high-frequency cycling applications like rapid tool changers. A 220 µF capacitor stores energy for brief power interruptions. It holds output states for 5 milliseconds during dips. Therefore, critical outputs remain stable through minor power fluctuations.

Status Indication and Diagnostics

Sixteen red LEDs provide clear visual feedback for each output channel. An illuminated LED confirms that the processor commanded the output ON. A dark LED indicates an OFF state or a possible wiring issue. The module also includes a green power LED. Additionally, a red fault LED alerts you to overcurrent or overtemperature conditions.

Installation and Physical Requirements

This module draws only 250 mA from the 5V DC backplane supply. Its lightweight 0.38 kg design simplifies handling during replacement. Insert the module firmly into any CNC rack slot. Connect the 50-pin ribbon cable to the terminal board. Operating temperature ranges from 0°C to 55°C reliably. Keep humidity below 90% without condensation for long life. Use 18–22 AWG wire for all field connections to the terminal board.