M12 Waterproof Sensor Cable 2m – Male & Female Connector, 4/5/8/12 Pin, Injection Molded

Pre-assembled M12 sensor cables with injection-molded connectors provide a ready-to-use solution for connecting industrial sensors, actuators, and I/O devices to PLC modules, fieldbus nodes, and control panels. The injection-molded overmold (as opposed to field-assembled connectors) creates a seamless, fully sealed cable-to-connector interface that maintains IP67 rating even under repeated flexing and vibration — a critical advantage in machine tool, conveyor, and robotics applications where cable movement is continuous.

Key Specifications

• Connector Type: M12 circular, A-coded (standard sensor/actuator)
• Pin Configurations: 4-pin, 5-pin, 8-pin, 12-pin (select above)
• Cable Length: 2 meters
• Connector End: Male, Female, or Male+Female (select above)
• IP Rating: IP67 (mated and unmated with cap)
• Cable Type: PUR or PVC jacket (PUR preferred for flex applications)
• Conductor: Stranded copper, 0.34mm² (22AWG) per core
• Voltage Rating: 250V AC/DC
• Current Rating: 4A per pin
• Operating Temperature: -25°C to +85°C (PVC); -40°C to +90°C (PUR)
• Bend Radius: Minimum 5× cable OD (static); 10× cable OD (dynamic flex)

Injection Molded vs Field-Assembled M12 Connectors

• Injection molded (this product): The connector body is molded directly onto the cable in a factory process. Creates a hermetic seal between cable and connector. No internal wiring to corrode or loosen. IP67 maintained under dynamic flexing. Higher upfront cost but zero field assembly time and superior long-term reliability.
• Field-assembled: Connector body screws onto the cable; individual wires are terminated to contacts inside. Allows custom cable lengths and field repair. Seal quality depends on correct assembly — improper assembly compromises IP rating. Suitable for low-flex, infrequently disturbed installations.

M12 Pin Assignment — A-Coded Standard

A-coded M12 4-pin and 5-pin connectors follow IEC 60947-5-2 standard pin assignments for sensors:

• 4-pin (NPN/PNP sensor standard): Pin 1 = +24V DC, Pin 2 = Output 1 (signal), Pin 3 = 0V GND, Pin 4 = Output 2 / Shield
• 5-pin (actuator standard): Pin 1 = +24V DC, Pin 2 = Output 1, Pin 3 = 0V GND, Pin 4 = Output 2, Pin 5 = Shield/PE
• 8-pin: Used for dual-channel sensors, encoder feedback, or combined power+signal applications. Pin assignment varies by device — verify against sensor datasheet.
• 12-pin: Used for multi-function devices, valve manifolds, and high-density I/O. Pin assignment is device-specific.

What Questions Does This Product Answer?

• "What is the difference between M12 male and female connectors?" — M12 male connectors have protruding pins; female connectors have recessed sockets. Sensors typically have a male M12 connector (pins protrude from the sensor body); the cable connecting to the sensor has a female M12 connector. Panel-mount sockets are female; cable plugs connecting to them are male.
• "Can I use a PVC cable M12 in a wash-down environment?" — PVC is suitable for occasional water exposure (IP67 rated). For continuous wash-down with cleaning agents or high-pressure water (IP69K), use PUR-jacketed cables — PUR resists oils, solvents, and repeated mechanical stress better than PVC.
• "Why does my sensor show intermittent faults after cable installation?" — Common causes: (1) incorrect pin assignment — verify wiring against the sensor datasheet; (2) cable bend radius too tight — PVC cables crack internally when bent below minimum radius; (3) connector not fully mated — M12 coupling nut must be tightened to 0.4–0.6 Nm for IP67 seal; (4) cable routed near high-voltage conductors causing EMI — use shielded cable and connect shield to PE at one end only.
• "What is the maximum cable length for M12 sensor cables?" — For digital (NPN/PNP) sensors: up to 100m with 0.34mm² conductors at 24V DC. For analog (0–10V, 4–20mA) sensors: voltage drop and EMI become significant above 30–50m — use shielded cable and verify signal integrity at the PLC input.

Typical Applications

• Industrial automation: Proximity sensor connections to PLC I/O modules, photoelectric sensor wiring, inductive sensor harnesses
• CNC machinery: Axis limit switch cables, tool length sensor connections, coolant flow sensor wiring
• Robotics: End-of-arm tooling sensor cables, collaborative robot (cobot) I/O connections
• Food & beverage: Wash-down environment sensor wiring, conveyor position sensing, filling machine controls
• Material handling: Conveyor belt sensor cables, pallet detection, AGV guidance sensor wiring

Package Contents

1 × M12 sensor cable, 2m length, with injection-molded connectors as specified (pin count and gender as selected above).