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Cold Weather Exit Signs Combo - black housing, red letters

Cold Weather Exit Sign Combos – LED, −40°F, 90-Min (UL 924)

Cold weather exit sign combos integrate an illuminated LED EXIT face with sealed emergency lamp heads and an internal battery heater for dependable operation from −4 °F down to −40 °F*. These fixtures are fully UL 924 and NFPA 101 compliant—ideal for freezers, cold-storage warehouses, ski resorts, loading docks, and other outdoor egress points. Browse the parent category exit sign and emergency light combos, or compare weather-tough options like wet-location exit sign and emergency light combos and NEMA-rated exit sign combos.

UL 924 To −40°F* 90-Min Ni-Cd LED Heads Heated Battery Sealed & Gasketed 120/277 VAC Self-Testing
Buyers Guide Tips

What to Look for in Cold Weather Exit Sign Combos

  • Minimum temperature rating: Match ambient (−4°F, −20°F, −40°F) where installed.
  • Heater package: Integral heater/thermostat sized for the enclosure; confirm power draw and circuiting.
  • Battery chemistry: Cold-tolerant Ni-Cd or lithium designed for fast recharge and cycle life at low temps.
  • Sealing & durability: Gasketed housing, condensation management, impact-rated lens; check NEMA/IP ratings.
  • Egress performance: Verified UL 924 90-minute runtime at the stated minimum temperature.
  • Optics & spacing: Adjustable sealed heads and lumen package for aisles, docks, and wide corridors.
  • Mounting & wiring: Wall/ceiling/pendant options; cold-rated cabling and sealed conduit entries.
  • Diagnostics: Self-testing availability to automate monthly/annual checks.
What makes an exit sign combo “cold-weather rated”?
A sealed, weatherproof housing; low-temperature battery chemistry; and an integral heater/thermostat that ensures UL 924 egress duration is met in freezing environments.

Rugged, gasketed polycarbonate or PVC housings shield components from moisture, ice, and corrosion, while thermostatically controlled heating pads preserve battery capacity in sub-zero conditions. Each unit provides a clearly legible LED EXIT legend (red or green) with field-selectable chevrons, adjustable sealed lamp heads, and a maintenance-free Ni-Cd backup that delivers at least 90 minutes during power loss. Many models also offer lithium battery options, dual-voltage inputs (120/277 VAC), and self-diagnostic testing to automate monthly/annual inspections.

Installation is flexible—choose wall, ceiling, or pendant/conduit mounting with universal hardware. For harsher exposures or wash-down areas, select NEMA-rated enclosures to match your ingress protection needs.

*Minimum operating temperature varies by model (e.g., −4 °F, −20 °F, or −40 °F). Always verify ambient rating, heater requirements, and NEMA/IP ingress protection on the product spec sheet.

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Cold Weather Exit Sign Combos Spec Guide

Spec Snapshot

  • Compliance: UL 924 listed with a minimum 90-minute runtime; supports NFPA 101 egress in sub-zero environments.
  • Low-Temp Rating: Models available down to −40 °F (others −20 °F/−4 °F). Verify ambient range and heater requirement on the submittal.
  • Battery & Heater: Cold-rated Ni-Cd or LiFePO4 packs with thermostat-controlled internal heaters to preserve capacity at low temperatures (note heater power draw).
  • Enclosure & Ingress: Sealed, gasketed housings (often NEMA 4X/IP66) with impact-resistant lenses to resist moisture, frost, and wash-down.
  • Legend & Heads: Uniform LED EXIT legend (red/green) with field-selectable chevrons plus sealed, adjustable LED heads for path illumination; review photometric spacing at planned mounting height.
  • Power & Diagnostics: Dual-voltage 120/277 VAC; solid-state charger/automatic transfer, low-voltage disconnect, AC lockout, brownout detection, status LED; self-testing versions available.
  • Mounting & Hardware: Universal wall/ceiling/pendant options with sealed NPT hubs; follow sealing/condensation practices to maintain enclosure integrity in freezer/exterior installs.
  • Options & Remote: Select families offer remote-capable outputs—confirm available remote wattage and resulting runtime. Vandal-resistant faceplates and corrosion-resistant finishes available.

FAQs About Cold Weather Exit Sign Combos

What temperature range do these combos handle?

Models are commonly rated from −4 °F down to −40 °F. Always confirm the specific ambient range on the product submittal.

Why do cold-weather combos include heaters?

Low temperatures reduce battery capacity. A thermostat-controlled heater keeps the battery within its optimal range to ensure a full 90-minute runtime.

Which battery chemistries work best in the cold?

Ni-Cd is dependable at sub-zero temps; LiFePO4 offers excellent low-temperature performance when paired with a heater. Verify chemistry, recharge time, and ambient limits on the cut sheet.

Are the housings waterproof or ice-resistant?

Yes—many use NEMA 4X/IP66 gasketed enclosures with sealed test access and impact-resistant lenses to resist moisture, frost, and wash-down spray.

Do combos include adjustable emergency lamp heads?

Yes. Sealed LED heads are standard and typically aimable to cover doors, stairs, and long corridors in freezers or exterior routes.

Will they still provide 90 minutes at −40 °F?

When installed per spec (with heater power available and within rated ambient), compliant units maintain the UL 924 90-minute duration at the stated low temperature.

What power and mounting options are typical?

Most accept 120/277 VAC and offer universal wall/ceiling/pendant mounting with sealed NPT hubs. Confirm heater watt draw and conduit sealing requirements.

Are self-testing diagnostics available?

Many models include self-diagnostic electronics that automate monthly 30-second and annual 90-minute tests and report faults via a status indicator.

Can these be used outdoors as well as in freezers?

Yes—provided the enclosure carries the appropriate NEMA/IP rating and the ambient temperature remains within the unit’s low-temperature range.

Any installation tips for freezer rooms?

Seal penetrations to prevent condensation, maintain gasket integrity, allow service clearance for heater/battery checks, and verify the branch circuit can support heater load.