M8 Waterproof Connector 2–6 Pin IP67 Male Female Plug Socket Kit – 4/10pcs

Description

M8 Waterproof Connector Kit – 2/3/4/5/6 Pin, IP67 Male & Female Plug & Socket Set

M8 circular connectors (IEC 61076-2-104) are the compact industrial standard for sensor and actuator connections in factory automation, machine building, and outdoor equipment. The M8 thread (8mm diameter) provides a secure screw-lock connection in a smaller package than the M12 standard — ideal for space-constrained sensor mounting locations. IP67 rated when mated, suitable for washdown environments, outdoor installations, and applications with water spray exposure.

Key Specifications

Standard: IEC 61076-2-104 (M8 circular connector)
Thread: M8 (8mm diameter, 1.0mm pitch)
Pin Configurations: 2, 3, 4, 5, 6 pin (select above)
Current Rating: 4A per contact (2–4 pin); 2A per contact (5–6 pin)
Voltage Rating: 30V DC / 60V AC (signal-level applications)
IP Rating: IP67 (mated)
Contact Material: Copper alloy, gold-plated
Wire Gauge: 22–26AWG (0.14–0.5mm²)
Quantity: 4 or 10 pieces (select above)

M8 vs M12 — Industrial Sensor Connector Selection

M8 (this product): 8mm thread, 4A per contact, 22–26AWG. Compact size for space-constrained sensor locations. Used for proximity sensors, photoelectric sensors, and small actuators with limited mounting space. Maximum 6 pins.
M12 (IEC 61076-2-101): 12mm thread, 4–8A per contact, 22–22AWG. Larger, more robust. The dominant standard for industrial sensors, fieldbus (PROFIBUS, EtherNet/IP, PROFINET), and higher-current actuator connections. Available up to 17 pins.
Selection rule: Use M8 when sensor mounting space is limited and current is below 4A. Use M12 for all other industrial sensor and fieldbus applications.

M8 Pin Assignment Standards

3-pin (standard sensor): Pin 1 = +V supply (brown), Pin 3 = GND (blue), Pin 4 = Signal (black) — IEC 60947-5-2 standard for 3-wire PNP/NPN sensors
4-pin (standard actuator): Pin 1 = +V, Pin 2 = Output A, Pin 3 = GND, Pin 4 = Output B
Note: Pin numbering is marked on the connector face. Always verify against the sensor datasheet — some manufacturers use non-standard pin assignments.

What Questions Does This Product Answer?

"What is the standard wire color code for M8 sensor connectors?" — IEC 60947-5-2 standard: Brown = +V supply, Blue = GND/0V, Black = Signal output (NPN or PNP), White = Second signal output (4-wire sensors). Always verify against the specific sensor datasheet — some sensors use non-standard color codes.
"Can I use M8 connectors for 24V DC industrial sensors?" — Yes. M8 connectors are rated for 30V DC, covering standard 24V DC industrial sensor supply voltages. For 48V DC or AC applications, use M12 connectors rated for higher voltages.
"How do I prevent M8 connector corrosion in washdown environments?" — Apply dielectric grease to the mated contacts before mating. Ensure the cable entry seal is correctly sized for the cable OD. Verify the IP67 rating is maintained by checking that the mating nut is fully tightened (finger-tight plus 1/4 turn with a wrench).

Typical Applications

Factory automation: Proximity sensor connections, photoelectric sensor wiring, small actuator interfaces
Food & beverage: Washdown-rated sensor connections in food processing equipment
Outdoor equipment: Weather-resistant sensor and actuator connections on outdoor machinery
Robotics: End-of-arm tooling sensor connections, compact actuator wiring
Machine building: Compact sensor interfaces where M12 connectors are physically too large