• SS&Si
  • Kidde Commercial
  • Kidde | Genesis G4LF 520 Hz Low Frequency Wall-Mount Fire Alarm Horn, Red with FIRE Marking | G4LFRF-H
Genesis G4LF 520 Hz Low Frequency Wall-Mount Fire Alarm Horn, Red with FIRE Marking
  • Frequency 520 Hz
Kidde Commercial

Genesis G4LF 520 Hz Low Frequency Wall-Mount Fire Alarm Horn, Red with FIRE Marking

SKU KD-G4LFRF-H

New to SS&Si? Apply for a dealer account
Share
  • Fast shipping from four branches
  • 30-day returns on unopened products
Questions? Call us 866-364-0030The SS&Si dealer team

The Genesis G4LF 520 Hz low frequency horn delivers code-compliant audible notification for sleeping areas and other spaces where standard 3 kHz signals fall short. Wall-mount design, selectable high/low dB output, and compatibility with Kidde VM, VS, and FX Series fire alarm control panels make it a straightforward drop-in for commercial fire alarm notification circuits.

Built for the commercial installer

NFPA 72 requires 520 Hz low frequency signals in sleeping areas - hotels, dormitories, healthcare facilities, assisted living, and similar occupancies. The G4LFRF-H meets that requirement with a red housing and FIRE marking, flush-mounting on a standard North-American 4" square box with the supplied spacer. No adapters, no special trim. For surface-mount applications, pair with the EG4RB surface mount box (sold separately).

Key features

  • 520 Hz low frequency tone meets NFPA 72 requirements for sleeping area notification
  • Selectable high/low dB output via internal jumper - adjust on-site without swapping the appliance
  • Temporal 3 or coded/steady patterns: factory-set temporal, field-configurable via internal jumper
  • Genesis synchronization with compatible modules and power supplies for coordinated audible output across circuits
  • 24 VDC or 24 VFWR operation on 12-18 AWG wiring, standard fire alarm circuit compatibility
  • UV-stabilized, color-impregnated housing resists fading and maintains appearance over time

System compatibility

Works with Kidde VM and VS Series life safety systems, FX Series fire alarm control panels, and Genesis synchronization modules (GSA-CC1S, GSA-MCC1S, SIGA-CC2A, GSA-MCC2A, EG1M-RM). Compatible power supplies include MIRBPS6A, MIRBPS10A, APS6A, and APS10A.

Specifications

SKUKD-G4LFRF-H
BrandKidde Commercial
Form factorWall-mount low frequency audible signal (horn only)
Frequency520 Hz
Operating voltage24 VDC or 24 VFWR
Sound output (temporal, 24 VDC)72.3 dBA (low) / 75.7 dBA (high) at 10 ft per UL 464
Sound output (continuous, 24 VDC)76.1 dBA (low) / 78.6 dBA (high) at 10 ft per UL 464
Operating current (temporal, 24 VDC)43 mA (low) / 112 mA (high) RMS
Operating current (continuous, 24 VDC)45 mA (low) / 109 mA (high) RMS
Audible patternTemporal 3 (factory default), field-configurable to coded/steady
Dimensions6.5" H x 5" W x 1" D (165 x 127 x 25 mm)
MountingFlush on North-American 4" square box, 2 1/8" (54 mm) deep, with supplied spacer
Surface mount optionsEG4RB red surface mount box (sold separately)
Wire size12-18 AWG (0.75-2.50 mm²)
HousingRed, textured UV-stabilized, color-impregnated engineered plastic
MarkingFIRE
Operating temp32-120°F (0-49°C)
Operating humidity0-93% RH, noncondensing
Synchronization sourcesVM/VS Series, FX Series FACPs, GSA-CC1S, GSA-MCC1S, SIGA-CC2A, GSA-MCC2A, EG1M-RM modules
Compatible power suppliesMIRBPS6A, MIRBPS10A, APS6A, APS10A
Shipping weight1.5 lbs (0.68 kg)

Documents and resources

FAQs

What areas require 520 Hz low frequency notification?
NFPA 72 requires 520 Hz low frequency signals in sleeping areas including hotel guest rooms, dormitories, assisted living facilities, and healthcare occupancies. Standard 3 kHz tones are not effective at waking sleeping occupants.
Can the output volume be adjusted in the field?
Yes. Cut jumper JP3 on the circuit board to switch from high to low dB output, reducing output by approximately 3-5 dB depending on voltage. No need to replace the appliance.
What fire alarm panels does this work with?
Compatible with Kidde VM and VS Series life safety systems and FX Series fire alarm control panels. Genesis synchronization modules (GSA-CC1S, GSA-MCC1S, SIGA-CC2A, GSA-MCC2A, EG1M-RM) provide synchronized temporal output across multiple circuits.
Does this horn include a strobe?
No. The G4LFRF-H is an audible-only appliance (horn). For combination horn-strobe models in the same Genesis G4LF family, look for SKUs ending in -HV or -HVM which add a visible strobe component.
What mounting box does this require?
Flush-mounts on a standard North-American 4" square box, 2 1/8" (54 mm) deep, using the supplied spacer. For surface-mount applications, use the EG4RB red surface mount box (sold separately).
Can this be configured for coded or steady tone?
Yes. The unit ships factory-set for Temporal 3 pattern. Cut jumper JP2 on the circuit board to enable coded or steady tone operation for use with coded fire alarm panels.
All Kidde Commercial