M12 K Code Connector 5 Pin Female 4+PE Power Connector for Industrial Automation
The M12 K-Coded 4+PE 5 Pin Female Connector is designed for high-power industrial applications requiring compact, reliable, and secure power transmission.
Featuring an M12 threaded locking interface and K-coded keying design, this connector prevents mismating with other M12 coding systems and ensures safe installation in industrial environments.
The 5-pin configuration includes four power contacts plus one protective earth (PE) contact, providing reliable three-phase AC power connection for motors, drives, automation equipment, and industrial control systems.
With a rugged metal shell, high mechanical strength, and excellent environmental resistance, this connector is suitable for harsh industrial applications where space-saving and dependable power connections are required.
Features
Applications
Industrial robots
Servo motors and drives
PLC control systems
Automation machinery
Motor power supply
Control cabinets
Industrial power modules
Assembly lines
Conveyor systems
Packaging machinery
Machine tools
Solar equipment
Energy storage systems
Power control units
What is M12 K-Coded Connector?
M12 K-Coded Connector is one of the M12 power connector coding systems specially designed for industrial power transmission.
Compared with standard M12 signal connectors, K-coded connectors are designed for higher voltage and current applications. The unique keying structure prevents incorrect mating with other M12 connectors, ensuring safe and reliable power connection.
The K-coded M12 connector is commonly used in:
Three-phase AC motors
Servo drives
Industrial automation equipment
Machine power supply systems
The standard configuration is usually 4 power contacts + PE grounding contact, providing a compact solution for industrial power distribution.
| Connectors | M12 4 Pin Male Straight | Classification | Circular Connector |
| Quantity of Pins | 4 pin | Coding | D-coded |
| Contact Material | Gold-plated copper alloy | Outer shell | Nickel plated |
| Rated current | 4A | Rated voltage | 250V |
| Coupling Mechanism | Threaded Locking | Insulation resistance | ≥ 100 MΩ |
| Contact resistance | ≤ 10 mΩ | Plug/unplug cycles | >500 cycles |
| Working temperature | -25°C~ 250°C | Salt Spray | 48H |
| Shielding performance | Shielded | IP rating | IP67 |
| Flame retardant rating | UL 94-V0 | Environmental Compliance | RoHS 2.0, REACH |