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Hazardous Emergency Lights – Explosion Proof

Hazardous Emergency Lights – Explosion Proof

Hazardous emergency lights—also called hazardous location emergency lights or explosion-proof emergency lights—are built for classified spaces with flammable gases, vapors, or combustible dust. These fixtures pair sealed, corrosion-resistant housings with high-output LEDs and battery backup to provide reliable egress illumination in Class/Division areas. For related signage, see explosion-proof exit signs or browse all emergency lights.

UL 844 / UL 924 Explosion-Proof Industrial Rated Battery Backup

Constructed in copper-free die-cast aluminum or fiberglass-reinforced housings with sealed gaskets and 1/2" NPT conduit hubs, these lights resist corrosion, dust, moisture, vibration, and impact—ideal for refineries, chemical plants, paint booths, grain handling, and other industrial sites. Adjustable LED optics provide efficient coverage along paths of egress while minimizing maintenance.

Most models are UL 844 listed for hazardous locations; many also carry UL 924 emergency-lighting listings and provide a minimum 90 minutes of battery runtime (verify per spec). Match your environment by checking temperature code (e.g., T4/T6), gas/dust group, and ingress protection (e.g., IP65/IP66).

💡 What is hazardous location emergency lighting? A sealed, code-certified fixture designed to provide safe emergency illumination without sparking ignition in explosive or combustible atmospheres.

Hazardous Location Ratings

Know your classification before you buy: Class I Division 2 exit signs — flammable gases or vapors present under abnormal conditions; Class II Division 1 exit signs — combustible dust present during normal operation; Class II Division 2 exit signs — dust present under irregular or fault conditions.

💡 Pro Tip: When selecting explosion-proof emergency lights, verify Class/Division ratings, temperature code, and battery backup specs to ensure full OSHA and NEC compliance.

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✅ What to Look for in Hazardous Location Emergency Lights

Class & Division Ratings: Select emergency lights rated for your specific hazardous zone. Use Class I Div 2 for explosive gas or vapor environments, and Class II Div 1 or Div 2 for combustible dust applications. These ratings ensure safety and compliance with NEC and OSHA regulations.

  • Rugged Construction: Look for sealed, die-cast aluminum or fiberglass-reinforced housings with tamper-resistant hardware and impact-rated lenses to prevent corrosion or breakage in harsh conditions.
  • Wet & Dust Protection: For wash-down areas, food zones, or outdoors, select units with NEMA 4X or IP66/IP67 ratings for total protection against moisture and particulates.
  • Battery Backup: All models must provide a minimum of 90 minutes of emergency lighting. Top models use Ni-Cd, NiMH, or SLA batteries and may include self-testing diagnostics to meet monthly and annual compliance checks.
  • Code Compliance: Ensure each fixture meets NFPA 101 and UL 924 for emergency egress in hazardous locations—plus UL 844 for explosion resistance.

FAQs About Hazardous Location Emergency Lights

What qualifies as a hazardous location?

A hazardous location is any area where flammable gases, vapors, dust, or fibers are present in the atmosphere. These environments are classified by the NEC and OSHA as Class I, II, or III, and further divided into Division 1 or 2 based on the likelihood of hazardous materials being present during normal operations.

What’s the difference between Class I Div 1 and Class I Div 2?

Class I Division 1 zones have explosive gases or vapors present under normal conditions. Class I Division 2 zones only become hazardous during abnormal conditions—such as equipment failure, spills, or leaks.

Are battery backups required in hazardous emergency lights?

Yes. According to NFPA 101 and UL 924, all emergency lights—including explosion proof emergency lights—must provide at least 90 minutes of battery backup during power outages.

Can I use hazardous location emergency lights outdoors?

Absolutely. Many industrial emergency lights are sealed to NEMA 4X or IP66/IP67 standards, making them suitable for outdoor, marine, wash-down, or corrosive areas such as oil refineries, gas stations, and food-processing plants.

Do these fixtures use LED technology?

Yes. Most hazardous location emergency lights use energy-efficient LED lamp heads for maximum visibility, longer lifespan, and reduced maintenance compared to halogen models.

How do I choose the correct class and division?

Your classification depends on the type of hazardous materials and how often they’re present. For example, spray paint booths often require Class I Div 1, while storage areas with infrequent vapor exposure might fall under Class I Div 2. Always consult your site’s safety engineer or AHJ for proper classification.