M12 A-Coded 5-Pin Connector
5-pin circular connector
Standards: IEC 61076-2-101
What is the M12 5-Pin pinout?
The M12 A-Coded 5-Pin Connector has 5 pins. Pin 1 is +24V (power). Pin 2 is Aux A (data). Pin 3 is 0V (ground). Pin 4 is Signal (data). Plus 1 more pins.
In many automation harnesses, M12 5-pin A-coded connectors use pin 1 for supply, pin 3 for 0V, pin 4 for the main signal, and pins 2 and 5 for auxiliary functions depending on the device.
Standards: IEC 61076-2-101
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Pin Assignment Table
| Pin | Signal | Type | Description |
|---|---|---|---|
| 1 | +24V | power | Brown conductor, supply voltage |
| 2 | Aux A | data | White conductor, auxiliary or control signal |
| 3 | 0V | ground | Blue conductor, return |
| 4 | Signal | data | Black conductor, primary signal |
| 5 | Aux B | data | Gray conductor, secondary signal |
Signal Types
Power
Data
Ground
Common Applications
Industrial sensorsDistributed I/OActuator harnesses
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Map this connector into your BOM workflow →The M12 5-Pin connector has 5 pins: Pin 1 (+24V, 24V), Pin 2 (Aux A), Pin 3 (0V), and Pin 4 (Signal). Plus 1 more pins. Common in Industrial sensors and Distributed I/O.
M12 5-Pin Sensor Pinout
In many automation harnesses, M12 5-pin A-coded connectors use pin 1 for supply, pin 3 for 0V, pin 4 for the main signal, and pins 2 and 5 for auxiliary functions depending on the device.
Why Use Interactive Diagrams?
- Accuracy: Hover over pins to see exact signal names and descriptions
- Clarity: Color-coded by signal type (power, ground, data)
- Printable: Export clean diagrams for shop floor reference