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  • Kidde | Genesis EG4LF Low Frequency 520Hz Horn-Strobe, Red, FIRE Marking | G4LFRF-HVM
Genesis EG4LF Low Frequency 520Hz Horn-Strobe, Red, FIRE Marking
Kidde Commercial

Genesis EG4LF Low Frequency 520Hz Horn-Strobe, Red, FIRE Marking

SKU KD-G4LFRF-HVM

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The G4LFRF-HVM meets the 520Hz low-frequency audible requirement NFPA 72 calls for in sleeping areas, pairing it with a field-selectable strobe up to 110 cd for occupants who need visual notification too.

Built for the commercial fire installer

The 520Hz tone penetrates walls and doors far better than a standard high-frequency horn, reaching up to 83 dBA with selectable high/low output and coded or temporal patterns. The strobe offers four field-selectable candela settings (15/30/75/110 cd) changed by removing the cover and sliding a switch - no separate model needed per candela rating, and the setting stays visible through a window after the cover is closed. The universal room-side wiring plate lets an installer pre-wire and check continuity before the device ever snaps into place.

Key features

  • 520Hz low-frequency tone meets NFPA 72 sleeping-area requirements
  • Field-selectable strobe output: 15, 30, 75, or 110 cd
  • Selectable horn output: high/low dBA, coded or temporal pattern
  • Pre-wire and test with the included GRSW room-side wiring plate and diagnostics port
  • Genesis-compatible synchronization - mixes with legacy Xenon strobes on the same circuit

System requirements

Fits 1-gang, 2-gang, 4-inch square, or 4-inch octagon (with GOCT adapter) electrical boxes, at least 1-1/2 in. deep. Strobe synchronization requires a compatible source (CC1S/MCC1S Series Signal Modules, booster/auxiliary power supplies, or intelligent/conventional control panels).

Specifications

SKUKD-G4LFRF-HVM
BrandKidde Commercial
Form factorWall-mount low-frequency horn-strobe, red, FIRE marking
Horn frequency520 Hz (NFPA 72 sleeping-area compliant)
Horn output78 dBA low / 83 dBA high, continuous or temporal
Strobe outputField-selectable 15, 30, 75, or 110 cd
Operating voltage16-33 Vdc / 16-33 VFWR
Dimensions4.95 x 5.78 x 1.62 in (W x H x D)
Wire size12 to 18 AWG
Mounting1-gang, 2-gang, 4" square, or 4" octagon (with GOCT adapter) box, 1-1/2" min. deep
Operating environment32°F to 122°F (0°C to 50°C), 0-93% RH noncondensing, indoor dry

Documents and resources

FAQs

Why 520Hz instead of a standard horn tone?
520Hz low-frequency signals penetrate walls and doors more effectively than higher-frequency tones, which is why NFPA 72 requires them in newly constructed sleeping areas.
Can I change the strobe candela after installation?
Yes. Remove the cover and slide the candela switch to 15, 30, 75, or 110 cd; the setting stays visible through a window once the cover is replaced.
Does this include the mounting plate?
Yes. The GRSW room-side wiring plate ships with the device for pre-wiring and continuity checks before the appliance is snapped into place.
Can I change the FIRE marking later?
Yes, with a replacement quick-swap cover (EG4AVRF-CVR family) in a different marking or language.
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