M16 Connector Size and Space Compatibility Guide
M16 Circular Connector Dimensions & Space Compatibility Guide
When integrating M16 circular connectors into industrial automation systems, every millimeter counts. Whether you’re designing a compact control panel, an IP67-rated outdoor enclosure, or a PCB-mounted application, understanding the precise dimensions and space requirements ensures smooth installation and long-term reliability.
In this article, we’ll explore:
- Standard M16 connector dimensions
- Panel cut-out sizes and clearance guidelines
- How environmental ratings (IP40 vs IP67) impact design
- Best practices for space compatibility
We also introduce Connoder, a trusted leader in connector solutions, providing customized M16 circular connectors for global OEMs. Learn more about Connoder.
Section 1: What is an M16 Circular Connector?
The term “M16” refers to the nominal metric thread size of the connector shell—16 mm in diameter. These connectors are widely used in industrial automation, sensor systems, and robotics, where space is limited and robust connectivity is essential.
Key Features of M16 Connectors:
- Compact size for tight installation spaces
- Pin counts up to 14 pins within a 16 mm housing
- Variants for signal, data, and power transmission
- Available in IP40 to IP67 sealing levels for harsh environments
Section 2: Standard M16 Connector Dimensions
- Outer Diameter & Panel Cut-Out: Nominal thread size: M16; Panel cut-out: Typically Ø19 mm
- Connector Length: Cable-mounted connectors: 46–60 mm; Panel-mounted connectors: 25–35 mm protrusion
- Pin Arrangement: Common layouts: 4, 5, 8, 12, or 14 pins
- Cable Entry Size: Supports cables from 4 mm to 10 mm outer diameter
Section 3: Space Compatibility Checklist
- Panel Thickness & Clearance: Confirm that the panel material thickness allows the connector to secure firmly with the locking nut.
- Depth Clearance: Leave ≥60 mm behind the mounting surface for cable mating and bend radius.
- Environmental Sealing: IP67 versions require additional sealing gaskets—plan for slightly more flange space compared to IP40 versions.
- Connector Orientation: For multi-connector panels, maintain adequate spacing to allow finger access for mating/unmating.
Section 4: How Connoder Delivers Space-Optimized M16 Solutions
At Connoder, we specialize in high-performance circular connectors designed for industrial automation, robotics, and harsh environments. Our M16 product line includes:
- Standard M16 circular connectors for panel and cable mounting
- Custom-engineered solutions for unique space constraints
- IP67-rated connectors for waterproof and dustproof applications
- High-pin-density options for compact electronic designs
Connoder M16 Circular Connector – Compact and Reliable for Industrial Applications
Our team provides detailed 3D CAD files, datasheets, and dimension drawings to simplify your design process and ensure flawless integration. Explore Connoder’s full range of connectors →
Section 5: Key Takeaways
| Feature | Typical Value |
|---|---|
| Nominal Thread Size | M16 |
| Panel Cut-Out Diameter | ~19 mm |
| Connector Length | 46–60 mm |
| Max Pin Count | 14 pins |
| Cable Entry Size | 4–10 mm |
Call to Action
Looking for M16 connectors with guaranteed dimensional accuracy?
Contact Connoder today for samples, technical drawings, and volume pricing.
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