HARTING Technology Group

The Han® Ex NEC 500 Class 1, Div ll product series is an extension of the Han® Ex product line. This series meets all the electrical requirements for implementing of high-quality connectivity solutions in hazardous locations in the Americas. 


Hoods & Housing  Inserts 


Comparison of Hazardous Location Standards

NEC 500 is the regulatory standard for electrical connectivity in hazardous/explosive locations in the Americas that compiles to requirements according to the EN 60079 standard. Similarly, the ATEX Directive complies to the EN 60079 standard for the European market and the IECEx standard complies to the EN 60079 standard internationally.










1. Metal locking levers require tools to open

Advantage: Does not allow opening of levers by hand

Benefit: Prevents opening levers/connector unintentionally in an explosive atmosphere 

2. Quick connect and disconnect

Advantage: Increased installation speed without special tools and improved safety and vibration-proof 

Benefit: Reduces maintenance downtime and troubleshooting compared to hardwiring alternative 

3. High density contact inserts

Advantage: Increased number of poles within a defined profile 

Benefit: Space saving - ability to place additional conductors per each connector 


  • Certified to National Electric Code's NEC 500 Class 1, Division ll standard 
  • IP65 rated (minimum) and up to IP67
  • Available sizes: 3A to 48B
  • Termination options: Crim, Screw, Han-Quick Lock®
  • Thread Sizes M20 to M40 for cable outlet 
  • Temperature range: -20 to +40 °C
  • UL file number: E482115




American Standards for Hazardous Locations

This hazardous connection interface is designed to meet the requirements for ignition protection under a Class 1 Div ll environment according to the American standard NEC 500 (National Electrical Code). This standard describes different areas of possible explosive atmospheres and complies to the EN 60079 standard for explosive location applications. The picture to the left shows an environment where different classes and divisions may reside. According to NEC 500 for Class 1 Div ll, the presence of flammable gas, vapor or dust, classifies a location as a Class 1 environment. Furthermore, Class 1 is subdivided into three divisions depending on the probability of flammable substance in the respective location sufficient enough to ignite with a spark. Division ll, in normal operation, is defined as an area with low probability of containing dangerous concentration of flammable substances and also contains the substance in a closed system.  




Han® Ex Offering

Connectors approved for Class I Div 2 environments

The Han® Ex 3A connector kits are available for requirements ranging from 3 to 12 contacts. The kit comes complete with hood, housing, male insert and female insert (crimp pins, if needed, are to be ordered separately).

Technical Details

The Han® Ex B family size is available for requirements ranging from 6 to 24 contacts. There is a wide range of options for building your connector. Various termination types, top or side entry hood and metric hood opening size are just some of the options.

Technical Details

Technical Support

Please contact the HARTING Technical Support if you need assistance for creating bills of materials or for selecting and identifying parts.

Other HARTING Products

The Han-Modular® connector range is flexible enough to have a single piece design or multi-modules locked together in a single frame. These modules are standard and can accommodate, signal, and power circuits along with fiber optic or compressed air lines in a single connector.


The HARTING PushPull lineup connector locks with a click for fast, reliable connections. It’s easy as ABC. The PushPull product line is IP65/67 rated for temperatures of -40°C to 70°C and the connection ensures EMC protection.


The HARTING M8/M12 connector solutions offer robust IP67 Cord Sets, A, B and D Coding Types, PVC and PUR cable jackets, single and double ended assemblies available in straight, angled, male and female.


The Han® High Temp connectors can withstand temperatures up to 200°C – so they can be used directly in machines and facilities that would otherwise require cumbersome and complex constructions.