Class I Division 2 exit sign and emergency light combos (C1D2) deliver both a clearly visible LED EXIT legend and integrated emergency lamp heads in one explosion-resistant fixture. Designed for hazardous locations where flammable gases or vapors may be present under abnormal conditions, these units carry UL 844 (hazloc) and UL 924 (egress) listings for dependable, code-ready performance. For outdoor or wash-down areas, choose wet-location exit sign and emergency light combos.
Built for refineries, chemical plants, fuel depots, and wastewater facilities, these combos use sealed die-cast aluminum or fiberglass-reinforced housings with gasketed lenses and corrosion-resistant hardware. The NEMA 4X/IP66 enclosure guards against dust, water, and wash-down, while adjustable lamp heads provide directional coverage along paths of egress.
Legends are LED-illuminated in field-selectable red or green with field-selectable chevrons. A maintenance-free internal battery (sealed Ni-Cd or lithium) supplies at least 90 minutes of runtime during outages. Most models include universal 120/277 VAC input, optional self-testing diagnostics to automate monthly/annual checks, and mounting for wall, ceiling, or pendant/conduit applications (verify hub size and accessories per submittal).
For standalone devices, see Class I Div 2 exit signs or pair with Class I Div 2 emergency lights to expand coverage. Need protection from combustible dust? Compare Class II Div 1 exit signs and Class II Div 2 exit signs.
Specification tip: Confirm gas group (IIA/IIB/IIC), temperature code (e.g., T4/T6), ambient rating, and exact ingress protection in each product’s submittal before installation.
2 Products
Areas where flammable gases or vapors are present only under abnormal conditions (e.g., leaks). C1D2 combos are designed so normal operation won’t ignite the atmosphere.
Not necessarily. Many C1D2 fixtures are nonincendive rather than flameproof “explosion-proof” (which is typical of Class I, Division 1). Always verify the nameplate and listing.
Look for UL 844 (hazardous location) and UL 924 (egress). The nameplate should show Class I, Division 2, gas Group(s) A/B/C/D, and the T-code (e.g., T4/T6).
T-code is the maximum external surface temperature of the fixture. It must be below the auto-ignition temperature of your process gas to avoid ignition risk.
Yes. Compliant combos provide at least 90 minutes of emergency illumination per UL 924. Check the submittal for emergency lumen output and recharge time.
Heads are typically adjustable for aiming along doors and corridors. Some families are remote-capable; confirm available remote wattage and resulting runtime before adding remote heads.
In wash-down, dusty, or outdoor zones, NEMA 4X/IP66 protects against water/particulates and corrosion. Match the enclosure rating to actual site conditions and the submittal.
Universal wall/ceiling/end or pendant/conduit mounting with sealed NPT hubs (e.g., 1/2" or 3/4"). Most units accept 120/277 VAC input; use hazloc-rated glands/fittings and follow sealing practices per code.
Most models offer red or green LED legends with field-selectable chevrons. Acceptable color may be jurisdiction-specific—confirm with the AHJ.
No. C1D2 is for flammable gases/vapors (Class I). For dust hazards, specify Class II rated equipment (e.g., C2D1/C2D2) with appropriate enclosure and temperature ratings.
Areas where flammable gases or vapors are present only under abnormal conditions (e.g., leaks). C1D2 combos are designed so normal operation won’t ignite the atmosphere.
Not necessarily. Many C1D2 fixtures are nonincendive rather than flameproof “explosion-proof” (which is typical of Class I, Division 1). Always verify the nameplate and listing.
Look for UL 844 (hazardous location) and UL 924 (egress). The nameplate should show Class I, Division 2, gas Group(s) A/B/C/D, and the T-code (e.g., T4/T6).
T-code is the maximum external surface temperature of the fixture. It must be below the auto-ignition temperature of your process gas to avoid ignition risk.
Yes. Compliant combos provide at least 90 minutes of emergency illumination per UL 924. Check the submittal for emergency lumen output and recharge time.
Heads are typically adjustable for aiming along doors and corridors. Some families are remote-capable; confirm available remote wattage and resulting runtime before adding remote heads.
In wash-down, dusty, or outdoor zones, NEMA 4X/IP66 protects against water/particulates and corrosion. Match the enclosure rating to actual site conditions and the submittal.
Universal wall/ceiling/end or pendant/conduit mounting with sealed NPT hubs (e.g., 1/2" or 3/4"). Most units accept 120/277 VAC input; use hazloc-rated glands/fittings and follow sealing practices per code.
Most models offer red or green LED legends with field-selectable chevrons. Acceptable color may be jurisdiction-specific—confirm with the AHJ.
No. C1D2 is for flammable gases/vapors (Class I). For dust hazards, specify Class II rated equipment (e.g., C2D1/C2D2) with appropriate enclosure and temperature ratings.