Federal Signal AV1ST-024B - Strobe Combination Audible/Visual Signal, 24VDC, Blue - Available in 24VDC and 120VAC. Surface mount, integrated 1/2-inch NPT pipe mount and 4-inch electrical box mount. Five lens colors: Amber, Blue, Clear, Green and Red. Twist-off lens for easy access. Internal buzzer produces 85 dBA at 10 feet (95 dBA at 1m). Conformal coated PCB. Type 3R enclosure. CSA Certified. UL and cUL Listed.
Federal Signal

AV1ST-024B

Alternate Item Number: av1-led

UPC: 782979207504


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Installation InstructionsLine DrawingSpecification SheetWarranty

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Overview

The Federal Signal AV1ST-024B is a robust blue strobe audible/visual signal designed for industrial safety and compliance applications. Operating at 24 VDC, it delivers a powerful 85 dBA buzz at 10 feet (95 dBA at 1 m) and a bright blue strobe to alert personnel in hazardous environments. The unit is surface‑mounted, with integrated 1/2‑inch NPT pipe mount and 4‑inch electrical box mount options, providing versatile installation possibilities in factories, plant corridors, and equipment enclosures. Its conformal‑coated PCB and Type 3R enclosure ensure durability under harsh conditions, while CSA certification and UL/cUL listing confirm safety standards. The AV1ST‑024B also offers a twist‑off lens for easy maintenance and comes in five lens colors—Amber, Blue, Clear, Green, and Red—allowing customization for specific signaling needs. Ideal for fire alarm systems, emergency evacuation routes, and safety signage, this product combines reliability, ease of installation, and regulatory compliance to enhance workplace safety. Key benefits include: - High‑volume audible alert for rapid personnel response. - Bright blue strobe for visual visibility in low‑light settings. - Multiple mounting options for flexible integration. - Certified safety standards (CSA, UL, cUL) for peace of mind. - Durable construction with conformal coating and Type 3R enclosure. Choose the Federal Signal AV1ST‑024B to meet stringent safety requirements while providing clear, audible, and visual alerts across industrial facilities.
  • 24VDC operation with 85 dBA buzz at 10 ft
  • Blue strobe for visual visibility
  • Surface mount with NPT pipe and electrical box options
  • Conformal‑coated PCB and Type 3R enclosure for durability
  • CSA, UL, and cUL certified safety

Specifications

-31 to 150
DEG F
0.39
A
175,000
CND
24
VDC
24 Vdc
V
6.48 H x 5.76 W x 5.76 D
IN
65-95
FLPM
7,000
HR
85
dBa
95
dBa
Amperage
0.39 A
Amperage Rating
0.39 AMP
Application
Indoor/Outdoor
Average Life
7,000 HR
Brand Name
Federal Signal
Candela Power
51.5
Candela Power Peak
175,000
Candle Power
175,000 CND
Color
Blue
dBa at 10ft
85 dBa
dBa at 1M
95 dBa
Diameter
5.76 in (146.3 mm)
Environmental Conditions
-31 to 150 DEG F
Flashes Per Minute
65-95 FLPM
Lens Color
Blue
Light Source
Strobe Tube
Loudness
85 (At 10 Feet) DB
Material
Polycarbonate Housing
Model
AV1ST
Mounting
1/2-Inch NPT Pipe/Surface/4-Inch Electrical Box
NEMA Rating
Type 3R Enclosure
Operating Temperature
-31D to +150DF (-35D to +66DC)
Power Peak
175000
Shape
Cylindrical
Size
6.48 H x 5.76 W x 5.76 D IN
Special Features
Combination Strobe Light And Buzzer
Standard
CSA,UL,cUL
Standard
UL Listed/cUL Listed/CSA Certified
Style
Strobe/Buzzer
Type
Audible/Visual Signal
Voltage Rating
24 Vdc
Package Dimensions (L x W x H)
8.25 IN x 8.25 IN x 8.75 IN
Package Dimensions (L x W x H)
20.955 cm x 20.955 cm x 22.225 cm
Package Weight (Imperial)
1.750 L
Package Weight (Metric)
0.794 kg
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Frequently Asked Questions

What are the available operating voltages for this signal?

The Model AV1-LED is available in 24VDC and 120VAC versions.

What is the sound output level of the integrated buzzer?

The integrated buzzer produces 85 dBa at 10 feet and 95 dBa at 1 meter.

What light patterns are available for the LED signal?

The LED can be programmed for steady illumination or two flash patterns: 60 FPM or 75 FPM.

What is the operating temperature range for the unit?

The unit can operate in temperatures ranging from -31°F to 150°F (-35°C to 66°C).

What are the available mounting options for the signal?

It supports surface mount, integrated 1/2-inch NPT pipe mount, and 4-inch electrical box mount.

What is the enclosure rating of the AV1-LED signal?

The AV1-LED features a 100% polycarbonate housing rated for Type 3R rain-tight applications.

Can the LED and buzzer operate independently?

Yes, the unit allows for flexible operation, enabling the LED to illuminate without the buzzer.

Is the AV1-LED signal compatible with PLCs?

Yes, the Model AV1-LED signal is compatible with PLCs.

What are the physical dimensions of the AV1-LED unit?

The unit has a height of 6.48 inches (164.6 mm) and a diameter of 5.76 inches (146.3 mm).

What lens colors are available for the AV1-LED?

The AV1-LED is available with Amber, Blue, Clear, Green, and Red lamp/lens colors.

How to Install the AV1-LED Combination Audible/Visual Signal

This guide provides step-by-step instructions for installing and configuring the AV1-LED combination audible/visual signal light.

Estimated time: 45m

Tools needed:

Screwdriver, Wire strippers, Multimeter

Supplies needed:

Mounting screws, Terminal connectors, Rubber gasket

  1. Mount the light

    Choose a suitable mounting location and secure the AV1-LED light to a 1/2" NPT pipe by turning it clockwise, or mount it on a flat surface using the provided gasket as a template to drill holes for screws.

  2. Wire the light

    Turn off power to the system, remove the upper housing by unscrewing the three #8 screws, and connect the power supply wires to the terminal block inside the lower housing, ensuring to strip 1/4" of insulation from the wire ends before connecting.

  3. Configure jumpers

    Access the power PCBA by removing the upper housing, then adjust the jumpers J3, J4, and J5 to set the flash rate and operation mode for the LED and sounder according to your requirements.

  4. Reassemble and test

    Reassemble the AV1-LED by securing the upper housing back in place, restore power to the system, and test the unit to ensure it operates correctly.

Frequently Asked Questions about Federal Signal

What certifications and standards do Federal Signal products comply with?

Federal Signal products are certified across multiple international standards, including UL (Underwriters Laboratories) in the USA, CSA (Canadian Standards Association), CE (European Community), UKCA (United Kingdom), EAC (Russia), and C-Tick (Australia and New Zealand). Their products meet rigorous safety and performance standards for industrial environments, with specific compliance in electrical equipment enclosures, functional safety, and environmental protection ratings.

What is Federal Signal's warranty policy?

Federal Signal offers a comprehensive limited warranty covering most products for 1-5 years from the date of delivery, with specific terms varying by product category. Mechanical sirens, beacons, speakers, and sounders typically receive 5-year parts and labor coverage, while electronic sirens and controllers generally have 2-year warranties. All warranties require return to the factory for service, and on-site services are not included. Certain components like domes, lenses, lamps, and batteries are specifically excluded from warranty coverage.

What industries and applications are Federal Signal products used for?

Federal Signal products are used across multiple critical industrial and municipal sectors for notification, communication, and safety systems. Their product lines cover essential applications including fire alarm systems, public address and telephony, outdoor warning systems, visual and audible signals, and emergency communication networks. Key industries served include manufacturing, municipal emergency services, industrial facilities, and infrastructure environments where clear, reliable communication and safety signaling are paramount.

What technical support does Federal Signal offer?

Federal Signal offers comprehensive technical support through their dedicated [email protected] email and direct phone line at +1 708.534.4756. Their support covers a wide range of notification and communication solutions, including technical assistance for products in public address, telephony, fire alarm, visual and audible signals, outdoor warning systems, and intercoms.

What are the main product lines offered by Federal Signal?

Federal Signal offers comprehensive notification and communication solutions across multiple product lines, including Visual Signals, Audible Signals, Telephony, Intercoms, Fire Alarm, Outdoor Warning Systems, Public Address, and Initiating Systems. Their product range is designed to provide clear communications and critical process notifications that enhance safety and compliance in industrial and public environments.

What are the key features of Federal Signal products?

Federal Signal products are comprehensive notification solutions designed to enhance safety and communication across industrial environments. Their key features include visual and audible signals, fire alarm systems, outdoor warning systems, public address capabilities, telephony, and intercoms. These products provide critical process notifications, ensure safety compliance, and offer advanced technologies like secure encrypted communication, cloud-based control systems, and customizable emergency response interfaces.

What environmental ratings do Federal Signal products have?

Federal Signal products offer robust environmental ratings across multiple standards, including UL 508A, CSA, NEMA, and IEC 60529. Their enclosures are rated for Type 1, 2, 3, 4, 4X, 12, and 13 environments, with IP66 protection, and can operate in temperatures ranging from -40°F to 266°F. These ratings ensure superior protection against dust, water, corrosion, and extreme conditions for indoor and outdoor industrial applications.

What accessories are available for Federal Signal products?

Federal Signal offers multiple accessories for their signaling products, including coupling kits, cable entry adapters, indicator rings, legend plates, and mounting brackets. Key accessories include E-Box endcap kits with M20 and M25 openings, U-Brackets for dual configurations, and color-coded indicator rings in black, blue, green, magenta, red, and yellow. Additional options like adapters for NPT connections and specialized mounting hardware are also available for their Global Series signaling platforms.

What communication protocols do Federal Signal products support?

Federal Signal supports multiple industrial communication protocols including PROFIBUS DP, PROFINET, EtherNet/IP, CANopen, and Modbus RTU. These protocols enable flexible network integration across various industrial automation environments, supporting both traditional fieldbuses and modern Ethernet-based communication standards.

How are Federal Signal products typically installed?

Federal Signal products are typically installed using professional mounting configurations that include wall brackets, base stations, and specialized mounting hardware. Depending on the specific product line—such as outdoor warning systems, visual signals, or audible signals—installation involves precise mounting options like wall-mount antenna brackets, base station radio packages, and modular component assemblies. Each product configuration includes specific mounting accessories like endcaps, adapters, and terminal blocks to ensure secure and compliant installation in industrial and safety-critical environments.