M15 Circular Connector Selection Guide
The M15 series is a waterproof circular connector built for reliable power and signal transmission in demanding outdoor and industrial settings. Its PA66 housing, combined with IP67 sealing, provides consistent protection against dust, moisture, and vibration. This guide helps you evaluate the M15 against your application requirements.
Key Decision Points for M15 Connectors
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Pin Configuration and Gender: Available in 2 to 6 pins, with male or female options. Confirm the required pin count and gender to match your mating cable or panel receptacle.
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Electrical Performance: The connector supports rated currents from 2A to 16A and rated voltages from 250V to 500V AC, with a test voltage of 500V–1000V AC for one minute. Insulation resistance is 500 MΩ and contact resistance is ≤ 40 mΩ. Verify these values against your system's voltage and current needs.
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Environmental Protection: With an IP67 rating, the M15 is suitable for temporary immersion or harsh weather. Confirm the specific IP rating needed for your installation environment, especially if the connector will be exposed to prolonged moisture.
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Housing Material: The PA66 housing offers a lightweight, cost-effective option with good mechanical strength. The insulator is also PA66, while the brass contacts are plated with silver or gold for reliable conductivity.
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Locking Mechanism: The secure screw locking mechanism ensures a firm connection, preventing accidental disconnection under vibration. Select the mechanism that best fits your installation and maintenance access.
Application Fit and Boundaries
The M15 connector is well-suited for LED lighting, solar energy systems, outdoor power equipment, garden equipment, and industrial sensors. Its robust sealing and vibration resistance make it a dependable choice for these environments.
However, it is not intended for applications requiring high-frequency data transmission or where continuous submersion beyond the IP67 rating is expected. For such needs, confirm the specific IP rating and electrical limits with our engineering team before selection.
Installation and Mating Considerations
Before ordering, verify the mating-side interface, pinout, and cable outside diameter to ensure compatibility. The connector supports both power and signal transmission, but the final configuration must be confirmed against your system's electrical load and environmental conditions. Termination is by solder or crimp, so confirm your preferred method and conductor size.
Inquiry Input Checklist
- Required pin count and gender (male/female)
- Mating-side connector type or drawing
- Cable outside diameter and conductor size
- Electrical load (current and voltage)
- Environmental conditions (IP rating, temperature range)
- Order quantity and preferred locking mechanism
For detailed dimensional data and further specifications, please refer to the Waterproof Connectors catalog. For a related product with similar industrial applications, see the 12G 4 Pin Aviation Connector Waterproof IP67 Industrial.