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The Wheelock AS-241575W-FR is a wall-mounted combination audible horn and visual strobe notification appliance designed for fire alarm systems. The “24” in the model number denotes 24 VDC operation; “1575” indicates a fixed-candela strobe rating (approximately 15 cd nominal, 75 cd on-axis); “W” indicates wall-mount; “FR” denotes the red housing with the white “FIRE” legend.
Although this model has been discontinued (or superseded), its specification is still useful for system documentation, spare parts, or retrofit planning.
Fixed-Candela Strobe: Provides a rated strobe output of 15 cd (75 cd on axis) for efficient visual alerting in wall-mount applications.
Audible Horn: Built-in horn compatible with standard two-wire notification circuits, combining audible + visual in one device for cost and also wiring efficiency.
Two-Wire Design: Simplifies wiring allows both audible and strobe driven from the same circuit, on compatible fire alarm notification appliance circuits.
Selectable Horn Mode & Volume: While this specific fixed-candela model may have fewer candela selections, the AS series generally offers selectable continuous or temporal (Code 3) horn tones and multiple dB levels (typically 90/95/99 dB @ 10 ft).
Universal Mounting Plate: Designed to mount to standard 4″ square, single gang or double gang backboxes. Screws and terminals are accessible for fast installation.
Compliances & Listings: Meets UL 1971 (visual appliance) and UL 464 (audible appliance) standards; carries agency approvals (NYC MEA, CSFM, FM, BFP) in its days of manufacture.
| Weight | 4 lbs |
|---|---|
| Dimensions | 8 × 8 × 8 in |
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The Wheelock AS-241575W-FR is a wall-mounted combination audible horn and visual strobe notification appliance designed for fire alarm systems. The “24” in the model number denotes 24 VDC operation; “1575” indicates a fixed-candela strobe rating (approximately 15 cd nominal, 75 cd on-axis); “W” indicates wall-mount; “FR” denotes the red housing with the white “FIRE” legend.
Although this model has been discontinued (or superseded), its specification is still useful for system documentation, spare parts, or retrofit planning.
Fixed-Candela Strobe: Provides a rated strobe output of 15 cd (75 cd on axis) for efficient visual alerting in wall-mount applications.
Audible Horn: Built-in horn compatible with standard two-wire notification circuits, combining audible + visual in one device for cost and also wiring efficiency.
Two-Wire Design: Simplifies wiring allows both audible and strobe driven from the same circuit, on compatible fire alarm notification appliance circuits.
Selectable Horn Mode & Volume: While this specific fixed-candela model may have fewer candela selections, the AS series generally offers selectable continuous or temporal (Code 3) horn tones and multiple dB levels (typically 90/95/99 dB @ 10 ft).
Universal Mounting Plate: Designed to mount to standard 4″ square, single gang or double gang backboxes. Screws and terminals are accessible for fast installation.
Compliances & Listings: Meets UL 1971 (visual appliance) and UL 464 (audible appliance) standards; carries agency approvals (NYC MEA, CSFM, FM, BFP) in its days of manufacture.
| Weight | 4 lbs |
|---|---|
| Dimensions | 8 × 8 × 8 in |
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