What is Class 1 Div 1 LED Lighting?

Class 1 Division 1, or C1D1, is a classification of explosion ratings defined by the National Electric Code for hazardous locations. These areas are considered explosive atmospheres where flammable vapors, flammable gases, or flammable liquids may be present continuously or under normal operating conditions.

Specialized electrical equipment and lighting are required in these environments to prevent ignition of hazardous substances and flammable materials.

Class 1 Div 1 LED lighting is specifically designed for hazardous locations where the risk of explosive atmospheres is high due to the presence of flammable gases and liquids.

What is a Class 1 Division 1 Area?

Class 1 Areas are divided into groups according to the National Electric Code, which defines four groups (A, B, C, D) based on the properties and ignition temperature of flammable gases and vapors. The four groups are:

• (A) Acetylene
• (B) Hydrogen
• (C) Ethylene or propane
• (D) Propane, butane, methane and benzene

Groups A, B, and C are part of this classification, with Groups A and B considered the most hazardous due to the high explosion risk and low ignition temperature of the substances involved. The ignition temperature of the materials in each group determines the specific safety requirements for lighting and electrical equipment in hazardous locations.

Note: all of our Class 1 Div 1 lighting is certified for Groups C and D. Some are licensed for Group B. Please check the specifications for each light if you specifically need C1 D1 Group B.

What are Industrial Applications for Class 1 Division LED Lighting?

• Oil and Gas Industry – petroleum refineries, oil platforms, drilling rigs, oil and gas operations, gas operations, utility gas plants, petrochemical facilities
• Chemical Manufacturing, chemical processing
• Ocean, Marine, and Aerospace Industries
• Food and Alcohol Production, Distilleries
• Electrical Power Generation Industry (Natural Gas)
• Waste Treatment Facilities and Plants
• Metal Treatment and Processing
• Dry Cleaning Plants

Hazardous area lighting is essential in industrial settings where combustible dust or gas operations are present, as it helps prevent ignition in hazardous environments and ensures safety and compliance.

What are the Benefits of Using Class 1 Div 1 LED Lighting?

Like other LED lights, hazardous location explosion-proof lights provide the same key benefits.

• Lights Suitable for Hazardous Locations: These lighting solutions are specifically designed and certified for use in hazardous locations, such as Class I Division 1 or Class II Division 1 areas, making them lights suitable for environments where safety is critical during normal operations and normal operating conditions.
• Long Life: Years of maintenance-free life without bulb or ballast changes, reducing or eliminating maintenance costs. Engineered for long periods of use, these lights maintain performance even with continuous exposure to hazardous atmospheres.
• Reduced Energy Bills: You can expect to reduce your energy costs and lighting bills by 50% to 75% with lower energy consumption versus traditional lighting.
• Energy Efficiency: LED fixtures are known for their efficiency and energy savings. They convert most of the electricity used into light. Very little heat is created. This will reduce your HVAC load and is a cost-effective lighting solution.
• Safer Areas: LED Lights are reliable, producing high-quality lighting for a long time versus metal halide and fluorescent lighting. It keeps the areas lit by LED high bays safer and well-lit.
• Extreme Conditions: These lighting solutions are built to withstand extreme conditions, including high temperatures, moisture, vibrations, and potentially explosive atmospheres, ensuring durability and safety.
• Instant On: LED Lights turn to 100% the moment you hit the light switch.
• Easy to install: There is nothing difficult about installing and wiring our high bay lights for either new installations or replacing old high bays. All instructions are included.

They also meet the certification requirements needed in Class 1 Div 1 applications. They will provide a safe lighting environment and work well in a hazardous location requiring repair or maintenance

Class 1 Division 1 LED Lights FAQ

What Certifications or Standards Must Class 1 Division 1 LED Lights Meet?

All the Class 1 Division 1 LED fixtures listed here meet and pass the UL (Underwriters Laboratory) UL844 standard for hazardous location lighting and have been tested to that standard.

Is Class 1 Division 1 the Same as ATEX Classifications?

Class 1 Division 1 is a UL classification used in North America. ATEX ratings are a different standard not used in this country. UL-rated and tested for C1D1 lights do not always qualify for ATEX certification and vice versa. In other words, a similar ATEX classification to C1D1 does not mean the light has met UL standards for class 1 div 1 lighting.

Is Class 1 Division 1 the Highest Classification of Hazardous Location Lights?

Yes Class 1 Division 1, or C1D1, is the strictest of all standards. It’s designed for an environment where danger is always present.

What's the Difference Between Class 1 Division 1 and Class 1 Division 2?

The main difference lies in the use of divisions to classify hazardous areas based on the presence of gas or other hazardous materials.
Division 1 covers areas where these materials are always present under normal operating conditions, while Division 2 refers to areas where hazardous gases, vapors, or mists are only present under abnormal conditions, such as leaks, and typically occur infrequently (less than 10 hours per year or under 0.1% of the time)

What are the Typical Lifetimes of LED Class 1 Div 1 Light Fixtures?

These class 1 division 1 LED fixtures are rated to run for a long time. Running these lights for 12 hours a day, 365 days a year – you can expect 10+ years of life from them without maintenance, bulb, or ballast changes.

What Additional Items Do You Need When You Install Class 1 Div 1 LED Lighting?

Everything the Class 1 Division 1 light is connected to inside the room must also be Class 1 Division 1 rated. There are some accessories available. But they’re limited due to the special nature of this fixture.

You may also need to supply a power cord. Everything inside the C1 D1 area must also be Class 1 Division 1 rated. That includes the conduit, junction boxes, and switches.

What Materials are Class 1 Div 1 LED Lighting Made Of?

These hazardous area class 1 division 1 fixtures are high-impact, heavy aluminum frames with thick tempered glass. They are specially designed to meet the rigorous demands of hazardous area lighting, ensuring safety and compliance in challenging environments.

Each fixture has an impact rating of IK10 – the highest impact rating available.

Can You Hard Wire LED Lights in Class 1 Div 1 Areas?

Yes, work with a qualified electrician certified in this type of installation. And, there can not be any exposed wires.

Caution: Always hire an experienced and qualified electrician who understands class 1 division 1 lighting requirements to do the job for you.