M12 Series

1. Main features

Waterproof and dustproof level: usually meets IP67/IP68/IP69K standards, can be dustproof, waterproof jet or long-term immersion (such as IP68 can work at a depth of 1.5 meters for 24 hours).

Thread locking: M12×1.0 or M12×1.5 metric threads are used to provide a stable connection that is resistant to vibration and impact.

Material:

Metal shells (such as nickel-plated brass, stainless steel) are suitable for harsh environments.

Plastic shells (such as PA66, PBT) are suitable for lightweight needs.

Sealing design: Silicone sealing rings (O-rings) ensure waterproofing, and some models are high temperature resistant (-40℃ to +125℃).

Contact configuration: Common 3-pin, 4-pin, 5-pin, 8-pin, 12-pin, support signal, power, data (such as Ethernet) transmission.

2. Electrical performance

Rated voltage: 30V~250V (depending on the specific model).

Rated current: usually 4A~16A (metal housing models can carry higher current).

Insulation resistance: ≥100MΩ (500VDC).

Withstand voltage: ≥1000V AC (1 minute test).

3. Common coding types (Key Coding)

M12 connectors usually use different coding (key positions) to prevent mis-insertion:

Coding type Applicable scenarios Example applications

A coding Sensor, power supply (3-12 pins) Proximity switch, photoelectric sensor

B coding Profibus, fieldbus Industrial communication (RS485, CAN bus)

D coding Industrial Ethernet (100Mbps) EtherCAT, Profinet, Ethernet/IP

X coding High-speed Ethernet (10Gbps) Gigabit Industrial Ethernet

K coding AC power supply (high current) Motor, inverter

4. Typical application scenarios

Industrial automation: PLC, servo motor, photoelectric/temperature/pressure sensor.

Robotics: Robotic arm, collaborative robot (Cobot) signal transmission.

Automotive manufacturing: production line equipment, battery management system (BMS).

Food and pharmaceutical: resistant to washdown environments (IP69K), suitable for high-pressure cleaning.

Outdoor equipment: LED lighting, traffic signals, wind power equipment.

5. Selection considerations

Protection level:

IP67 (anti-short-term immersion)

IP68 (long-term waterproof)

IP69K (anti-high-pressure and high-temperature water jet, suitable for food/pharmaceutical industry).

Cable outlet direction:

Straight

90° elbow (Right Angle).

Certification requirements: UL, CE, RoHS, ATEX (explosion-proof environment).

Matching plug type: male/female, with wire or panel installation.