Federal Signal 27XST-024A-4-MOD - Strobe Light, Explosion-Proof, Limited In-Rush, 4-Wire, UL and cUL CID1, 24VDC, Amber, Mount Sold Separately
Federal Signal

27XST-024A-4-MOD

Alternate Item Number: 27xst-4-supervised

UPC: 782979233039


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Overview

The Federal Signal 27XST-024A-4-MOD is a specialized explosion-proof strobe light designed for critical signaling in hazardous industrial locations. This 24VDC amber strobe meets stringent UL and cUL Class I, Division 1 (CID1) safety standards, making it suitable for environments where flammable gases or vapors may be present. Its robust construction ensures reliable operation in challenging conditions, providing high-visibility illumination essential for safety alerts and status indication. The 4-wire connection facilitates straightforward integration into existing control systems, offering flexibility for power and signaling inputs. A key feature is its limited in-rush current capability, which protects sensitive electrical components and power supplies from voltage spikes during startup, thereby extending the lifespan of the equipment. The amber lens provides clear visual signaling, crucial for distinguishing alerts in busy industrial settings. Mounting hardware is sold separately, allowing for customized installation on panels, racks, or other fixtures according to specific site requirements. This strobe light is an ideal choice for applications in chemical plants, oil and gas facilities, refineries, and any sector requiring certified explosion-proof signaling devices. Federal Signal's commitment to quality and safety is evident in the durable design and reliable performance of the 27XST-024A-4-MOD, ensuring long service life and minimal maintenance in demanding operational environments. SKU: 27XST-024A-4-MOD. UNSPSC Code: 39111706. Country of Origin: US.
  • UL and cUL CID1 certified for hazardous locations
  • 24VDC operation with 4-wire connection
  • Limited in-rush current protects electronics
  • High-visibility amber strobe illumination
  • Durable construction for industrial environments

Specifications

-67 to 150
DEG F
1.9 @ 24VDC
A
1.90
A
10,000
HR
11.37 H x 8.82 W x 8.82 D
IN
2,000,000
CND
24
VDC
80
FLPM
Amperage
1.9 @ 24VDC A
Amperage Rating
1.9 AMP
Application
Indoor/Outdoor
Average Life
10,000 HR
Brand Name
Federal Signal
Candela Power
850
Candela Power Peak
2,000,000
Candle Power
2,000,000 CND
Color
Amber
Connection Type
4-Wire
Diameter
8.82 in (224 mm)
Environmental Conditions
-67 to 150 DEG F
Flashes Per Minute
80 FLPM
Ip Rating
IP CID1
Lens Color
Amber
Lens Style
Fresnel
Light Source
Strobe Tube
Material
Aluminum/Glass
Model
27XST-4-MOD
Mounting
3/4-Inch NPT Pendant,Ceiling,Wall
Mounting Type
Mount Sold Separately
Mounting Type
Panel/rack mounting (hardware sold separately)
Mounting Type
Sold Separately
NEMA Rating
Type 4X, IP66, IP69K Enclosure
Operating Temperature
-67D to +150DF (-55D to +66DC)
Poles
4
Poles
4-wire
Power Peak
2000000
Series
27XST
Shape
Cylindrical
Size
11.37 H x 8.82 W x 8.82 D IN
Special Features
In-Rush Limiting PCB Design
Standard
UL Listed/cUL Listed/CSFM Approved/Marine Rated
Standard
CSFM,Marine,UL,cUL
Style
Strobe
Type
Explosion-Proof Supervised Strobe Light
Voltage Rating
24 Vdc
Package Dimensions (L x W x H)
11.75 IN x 17 IN x 11.75 IN
Package Dimensions (L x W x H)
29.845 cm x 43.18 cm x 29.845 cm
Package Weight (Imperial)
17.300 L
Package Weight (Metric)
7.847 kg
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Frequently Asked Questions

What is the operating voltage for the 154XST strobe?

The 154XST hazardous location supervised strobe light operates on 24VDC.

What are the candela ratings for the 154XST strobe?

The 154XST strobe light has a peak candela of 520,000 and an effective candela of 165.

What is the flash rate of the 154XST strobe light?

The 154XST hazardous location supervised strobe light produces 80 flashes per minute.

What are the available dome colors for the 154XST?

The 154XST strobe light is available with five dome colors: Amber, Blue, Clear, Green, and Red.

What are the mounting options for the 154XST strobe?

The 154XST strobe light offers 3/4-inch NPT pipe mount or surface mount options.

What is the expected lifespan of the 154XST strobe tube?

The 154XST strobe light features a 10,000-hour high-intensity strobe tube.

What are the environmental ratings for the 154XST?

The 154XST has a Type 4X, IP66 enclosure, is IP69K compliant, and is Marine Rated for indoor/outdoor use.

What hazardous locations is the 154XST certified for?

The 154XST is UL and cUL Listed for Class I, Division 2, Groups A, B, C and D; Class II, Division 1, Groups E, F and G; and Class III.

Does the 154XST include a dome guard?

Yes, a dome guard is included with the 154XST hazardous location supervised strobe light.

How is the 154XST wired for supervision?

The 154XST uses four wires and includes a supervisory diode for proper FACP supervision.

How to Install the 27XST-024A-4-MOD Strobe Light

This guide provides step-by-step instructions for safely installing and wiring the 27XST-024A-4-MOD strobe light in hazardous locations.

Estimated time: 45m

Tools needed:

Screwdriver, Wire strippers, Multimeter

Supplies needed:

Mounting screws, Terminal connectors, Corrosion-inhibiting grease

  1. Mount the ceiling support

    Install the ceiling mount on the support surface using the four external mounting slots. Ensure the mount is securely attached.

  2. Remove the terminal block

    Loosen the two mounting screws to remove the terminal block from the ceiling mount.

  3. Connect the power supply

    Connect the incoming positive side (+) of the power source to the terminal marked L+, and the incoming negative side (−) to the terminal marked N–. Ensure to observe polarity to prevent damage.

  4. Secure the connections

    Connect the outgoing positive side (+) to terminal B and the outgoing negative side (−) to terminal A. If required, connect the earth ground wire to the green screw in the ceiling mount.

  5. Lubricate threaded joints

    Clean and lubricate the threads on the threaded joint with a corrosion-inhibiting grease to prevent galling and ease maintenance.

  6. Attach the strobe light

    Thread the strobe light fixture clockwise into the mount and tighten it securely.

  7. Test the installation

    After installation, ensure that all threaded joints are properly tightened and test the light system to verify 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.