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Explosion Proof Emergency Lights & Exit Signs

Standard egress fixtures are not engineered for areas with flammable gases, vapors, or combustible dust. Our Explosion Proof Emergency Lights and Explosion Proof Exit Signs are purpose-built for classified environments and comply with UL 844, NFPA 101, and NEC (NFPA 70) guidelines. For non-electrical applications, consider our self-luminous exit signs (select models are Explosion Proof rated).

Explosion Proof / HazLoc UL 844 Luminaires NFPA 101 Egress 90-Minute Backup Sealed / Corrosion-Resistant
Buyers Guide Tips

What to Look for in Explosion Proof Emergency Lights & Exit Signs

  • Compliance & classification: Confirm UL 844 for HazLoc luminaires and, where applicable, UL 924 for emergency lighting; align with NEC (NFPA 70) and NFPA 101.
  • Gas/dust groups: Match the site’s group—Class I (A–D), Class II (E–G), Class III (fibers)—or Zone designations as specified.
  • Temperature code & ambient: Verify T-code (e.g., T6/T5/T4) and allowable ambient Ta; add heaters for low-temp environments if required.
  • Enclosure & ingress: Specify sealed housings with NEMA 4/4X or IP65/IP66 ratings and continuous gasketing for wash-down/dust exposure.
  • Housing & corrosion: Copper-free die-cast aluminum or fiberglass; stainless fasteners and chemical-resistant finishes for refineries/coastal sites.
  • Conduit & sealing: Properly threaded entries (e.g., 1/2″ NPT); use approved sealing fittings and thread engagement per NEC Articles 500/501.
  • Lumen output & optics (lights): Size output/beam pattern to achieve target egress levels (≈ ≥1 fc average and ≥0.1 fc minimum) for 90 minutes.
  • Legend spec (exit signs): Standard 6 in letters with typical viewing up to 100 ft; choose red/green and single/double-face per plan.
  • Power & electronics: Universal 120/277 VAC, surge/brownout protection, solid-state charger, low-voltage disconnect, status indicator, and test switch.
  • Battery & runtime: Maintenance-free Ni-Cd or lithium packs delivering a minimum 90-minute runtime; verify recharge time and expected life at site temperatures.
  • Mounting & vibration: Wall/ceiling/pendant brackets rated for industrial vibration and shock; confirm weight, clearances, and aiming for coverage.
  • Nameplate & markings: Ensure label lists Class/Division (or Zone), group, T-code, ambient range, and ingress rating for inspection.
  • Maintenance & diagnostics: Self-testing electronics to automate monthly/annual checks; keep logs per AHJ/OSHA procedures.

Browse by category: Explosion Proof Emergency Lights · Explosion Proof Exit Signs · Explosion Proof Exit Sign Combos

Each solution is engineered for reliable egress illumination in Class I environments, featuring sealed housings, impact-resistant construction, and battery backup for outage scenarios. These fixtures support code-compliant safety in mechanical rooms, wastewater facilities, fuel depots, chemical processing plants, and other high-risk areas.

💡 What is Class I, Division 2? Locations where flammable gases or vapors are handled or processed but are not normally present at explosive concentrations. Equipment must be sealed and ignition-proof to prevent sparks during normal operation or emergencies.

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Explosion Proof Emergency Lights & Exit Signs – Spec Guide

  • Compliance & codes: Confirm UL 844 (HazLoc luminaires) and, where applicable, UL 924 for emergency lighting; align with NEC (NFPA 70) and NFPA 101.
  • Area classification: Match Class/Division or Zone designations and gas/dust groups (Class I A–D, Class II E–G, Class III fibers).
  • Temperature code & ambient: Verify T-code (e.g., T6/T5/T4) and allowable Ta; consider heater kits for low-temperature sites.
  • Enclosure & ingress: Sealed housings with IP65/IP66 or NEMA 4/4X, continuous gasketing, and impact-resistant lens for wash-down/dust exposure.
  • Housing & corrosion: Copper-free die-cast aluminum or fiberglass; stainless hardware and chemical-resistant finishes for industrial/corrosive environments.
  • Conduit entries & sealing: Threaded hubs (e.g., 1/2″ NPT); use approved sealing fittings and proper thread engagement per NEC Articles 500/501.
  • Egress photometrics (lights): Size output/beam to achieve ≈ ≥1 fc average and ≥0.1 fc minimum along the path for 90 minutes.
  • Legend spec (exit signs): Standard 6 in letters with typical viewing up to 100 ft; select red/green and single/double-face per plans.
  • Power & electronics: Universal 120/277 VAC, surge/brownout protection, solid-state charger, low-voltage disconnect, status indicator, and test switch.
  • Battery & runtime: Maintenance-free Ni-Cd or lithium packs delivering a minimum 90-minute runtime; verify recharge time and life at site temperatures.
  • Mounting & vibration: Wall/ceiling/pendant brackets rated for industrial vibration and shock; confirm fixture weight, clearances, and aiming for coverage.
  • Nameplate & markings: Ensure label lists Class/Division (or Zone), group, T-code, ambient range, and IP/NEMA rating for inspection readiness.
  • Maintenance & diagnostics: Self-testing electronics to automate monthly/annual checks; maintain logs per AHJ/OSHA procedures.

Additional Resources

FAQs About Hazardous Location Emergency & Exit Signs

What is considered a hazardous location?

A hazardous location is any area where flammable gases, vapors, dust, or fibers may be present in the air. These spaces are classified by the NEC as Class I, II, or III and labeled Division 1 or 2 based on how often those materials are present.

Are these fixtures UL listed?

Yes. Hazardous location emergency and exit signs are UL 844 listed and meet UL 924 and NFPA 101 life-safety requirements.

Where are hazardous-rated fixtures required?

They’re used in industrial plants, chemical processing areas, wastewater facilities, grain silos, fuel depots, and other potentially explosive environments.

Do they include battery backup?

Yes. All models provide a minimum of 90 minutes of emergency illumination during a power outage. You can shop hazardous-rated emergency lights here or explore integrated combo units.

Can exit signs be used in Class I Div 2 areas?

Absolutely. Class I Div 2 compliant exit signs are designed for locations where flammable gases may be present intermittently.

Are combo units available?

Yes. For compact, all-in-one solutions, browse our explosion-proof exit sign and emergency light combos designed for hazardous locations.