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Hazardous Location & Explosion-Proof Emergency Lights, Exit Signs & Combos

Standard egress fixtures aren’t engineered for classified spaces with flammable gases, vapors, dust, or fibers. Our Hazardous Location Emergency Lights, Hazardous Location Exit Signs, and Hazardous Location Exit Sign Combos (including Explosion-Proof models) are built for these environments and aligned with UL 844, UL 924, NFPA 101, and NEC (NFPA 70). For related outdoor and wash-down needs, explore wet location emergency lights, nema emergency lights, and outdoor emergency lights.

Explosion-Proof / HazLoc UL 844 Luminaires NFPA 101 Egress 90-Minute Backup Sealed / Corrosion-Resistant
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Explosion-Proof & Hazardous-Location Lights & Signs - Selection checklist - Features & Specs

  • Area classification: Match Class/Division or Zone 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 cold sites.
  • Enclosure integrity: Specify sealed housings with NEMA 4/4X or IP65/IP66 and continuous gasketing.
  • Conduit & sealing: Threaded hubs (e.g., 1/2″ NPT) and approved sealing fittings per NEC 500/501.
  • Egress photometrics (lights): Size optics/output to achieve ≈ ≥1 fc average and ≥0.1 fc minimum for 90 minutes.
  • Legend spec (signs): Standard 6″ letters, typical viewing up to 100 ft; choose red/green, single/double-face per plan.
  • Power & battery: Universal 120/277 VAC, surge/brownout protection; maintenance-free Ni-Cd or lithium delivering ≥90 min.
  • Markings & labels: Confirm nameplate shows class/division (or zone), group, T-code, ambient, and ingress rating.
💡 What is Class I, Division 2? Areas where flammable gases or vapors are handled or processed but are not normally present at explosive concentrations. Equipment must be sealed and ignition-protected during normal operation and emergencies.
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Explosion-Proof & Hazardous-Location Emergency Lights & Exit Signs - UL 844, UL 924, Class/Zone - Features & Specs

  • Compliance: UL 844 (HazLoc luminaires) and, where applicable, UL 924 for emergency lighting; align with NFPA 101 and NEC (NFPA 70).
  • Classification: Class I/II/III, Div 1 or Div 2 (or Zone 0/1/2, 20/21/22) matched to the site’s materials and frequency of presence.
  • T-Code & Ambient: Confirm T-rating and allowable ambient (Ta) range for continuous operation.
  • Ingress & Corrosion: NEMA 4/4X or IP65/IP66, impact-resistant lensing, copper-free die-cast aluminum or fiberglass; stainless hardware.
  • Electrical: Universal 120/277 VAC, surge/brownout protection, solid-state charger, LVD, status indicator, and test switch.
  • Battery: Maintenance-free Ni-Cd or Lithium with ≥90-minute emergency runtime; verify recharge times at site temperatures.
  • Photometrics (lights): Aim and output to meet path-of-egress targets (≈ ≥1 fc average, ≥0.1 fc minimum).
  • Legend (signs): 6″ letters, up to 100-ft viewing; choose red/green, single/double-face; chevron options per layout.
  • Mounting: Wall/ceiling/pendant kits rated for industrial vibration; confirm weight, clearances, and conduit entries.
  • Nameplate: Class/division (or zone), group, T-code, ambient range, and ingress rating clearly marked for inspection.

FAQs About Hazardous Location & Explosion-Proof Emergency Lights & Exit Signs

What is a hazardous (classified) location?

Any area where flammable gases, vapors, dust, or fibers may be present. The NEC classifies these as Class I, II, or III and labels them Division 1 or 2 (or Zone 0/1/2 and 20/21/22) based on likelihood of presence.

Are these fixtures UL listed?

Yes. Explosion-proof and hazardous-location models are listed to UL 844 (luminaires) and, where applicable, UL 924 for emergency lighting. They’re specified to support NFPA 101 life-safety goals.

Do they include battery backup?

Yes. Emergency models provide a minimum of 90 minutes of egress illumination during a power outage, subject to ambient and battery chemistry.

Can exit signs be used in Class I, Division 2?

Absolutely. Class I, Div 2 compliant exit signs are designed for locations where flammable gases may be present intermittently; confirm T-code, ambient, and enclosure rating.

Are combo units available?

Yes. Hazardous-location exit sign combos combine the EXIT legend with integrated emergency heads for a compact, code-compliant solution.