M8 Sensor Connector Cable 2m Straight Right Angle Male Female – 3–8 Pin Industrial

Description

M8 Sensor Connector Cable 2m – Straight & Right Angle, Male/Female, 3/4/5/6/8 Pin Waterproof Molded

Pre-assembled M8 sensor cables with injection-molded connectors for connecting compact industrial sensors, actuators, and I/O devices in space-constrained installations. The M8 connector (8mm thread, IEC 61076-2-104) is the smaller sibling of the M12 — used where the M12’s 12mm thread footprint is too large, such as on miniature proximity sensors, fiber optic amplifiers, and compact photoelectric sensors. Available in straight and 90° right-angle configurations to accommodate different cable routing requirements without bending the cable at the connector exit.

Key Specifications

Connector Type: M8 circular, A-coded (standard sensor/actuator)
Thread: M8 × 1.0mm pitch
Pin Configurations: 3-pin, 4-pin, 5-pin, 6-pin, 8-pin (select above)
Cable Length: 2 meters
Exit Style: Straight or 90° right angle (select above)
Connector End: Male, Female, or Male+Female (select above)
IP Rating: IP67 (mated)
Conductor: Stranded copper, 0.25mm² (24AWG) per core
Voltage Rating: 250V AC/DC
Current Rating: 3A per pin
Operating Temperature: -25°C to +85°C

M8 vs M12 — When to Use Each

M8 (this product): 8mm thread, 3A per pin, 0.25mm² conductors. Used for miniature sensors with M8 connector bodies — common on compact inductive sensors (Sick, Balluff, IFM, Pepperl+Fuchs miniature series), fiber optic amplifiers, and small photoelectric sensors. Panel cutout: 8mm hole.
M12: 12mm thread, 4A per pin, 0.34mm² conductors. The dominant standard for general industrial sensor wiring. Higher current capacity, more robust mechanical connection. Panel cutout: 12mm hole.
Key rule: Match the cable connector to the sensor’s connector body thread size. M8 and M12 are not interchangeable — the threads will not mate.

Straight vs Right Angle — Cable Exit Selection

Straight exit: Cable exits parallel to the connector axis. Best when there is sufficient clearance behind the sensor for the cable to run straight. Simpler, lower profile at the connector body.
90° right angle exit: Cable exits perpendicular to the connector axis. Essential when the sensor is mounted close to a wall, panel, or adjacent component that blocks straight cable exit. Reduces cable bend stress at the connector. Required for sensors mounted in recessed positions or tight enclosures.

What Questions Does This Product Answer?

"What is the standard pin assignment for M8 3-pin sensors?" — IEC 60947-5-2 standard: Pin 1 = +24V DC (brown), Pin 3 = 0V GND (blue), Pin 4 = Output signal (black). Note: M8 3-pin uses pins 1, 3, and 4 — there is no pin 2 in the 3-pin configuration.
"Can I use an M8 cable on an M12 sensor?" — No. M8 and M12 connectors have different thread sizes and contact arrangements. They will not mate. Use the connector size that matches your sensor’s connector body.
"What torque should I use to tighten an M8 connector?" — 0.2–0.4 Nm for the M8 coupling nut. Over-tightening damages the O-ring seal and can crack the connector housing. Under-tightening compromises the IP67 seal.
"Why does my sensor show a fault after cable replacement?" — Check: (1) pin assignment — verify wiring color code against sensor datasheet; (2) coupling nut torque — loose nut allows moisture ingress; (3) cable bend radius — M8 cables have smaller conductors (0.25mm²) that are more susceptible to fatigue fracture if bent too tightly near the connector.

Typical Applications

Miniature proximity sensors: Inductive and capacitive sensors with M8 connector bodies on conveyor systems, packaging machines, and assembly lines
Fiber optic amplifiers: M8 connection to fiber optic sensor heads on high-speed detection applications
Compact photoelectric sensors: Through-beam and diffuse sensors in tight mounting locations
Robotics: End-of-arm tooling sensors, gripper position feedback, compact I/O connections
Food & beverage: Wash-down environment miniature sensor wiring where M12 is too large for the mounting location