M8 A-Coded 4-Pin Connector
4-pin circular connector
Standards: IEC 61076-2-104
What is the M8 4-Pin pinout?
The M8 A-Coded 4-Pin Connector has 4 pins. Pin 1 is +24V (power). Pin 2 is Signal A (data). Pin 3 is 0V (ground). Pin 4 is Signal B (data).
M8 A-coded 4-pin connectors follow a widely used sensor convention. Pin 1 is typically supply, pin 3 is 0V, and pins 2 and 4 carry signal or switching functions depending on the device.
Standards: IEC 61076-2-104
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Pin Assignment Table
| Pin | Signal | Type | Description |
|---|---|---|---|
| 1 | +24V | power | Brown conductor, supply voltage |
| 2 | Signal A | data | White conductor, signal or function lead |
| 3 | 0V | ground | Blue conductor, return |
| 4 | Signal B | data | Black conductor, switched signal or data |
Signal Types
Power
Data
Ground
Common Applications
Industrial sensorsActuatorsMachine I/O
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Map this connector into your BOM workflow →The M8 4-Pin connector has 4 pins: Pin 1 (+24V, 24V), Pin 2 (Signal A), Pin 3 (0V), and Pin 4 (Signal B). Common in Industrial sensors and Actuators.
M8 4-Pin Sensor Pinout
M8 A-coded 4-pin connectors follow a widely used sensor convention. Pin 1 is typically supply, pin 3 is 0V, and pins 2 and 4 carry signal or switching 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