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

27XST-024B-4-MOD

Alternate Item Number: 27xst-4-supervised

UPC: 782979233046


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Overview

The Federal Signal 27XST-024B-4-MOD is a robust, explosion-proof strobe light engineered for critical safety signaling in hazardous industrial environments. This unit operates on a 24VDC power supply and features a 4-wire configuration for straightforward integration into existing electrical systems. Its construction is certified UL and cUL CID1, ensuring compliance with stringent safety regulations for locations where explosive atmospheres may be present, such as oil and gas facilities, chemical processing plants, and mining operations. The integrated limited in-rush feature is crucial for protecting connected electrical equipment from damaging voltage spikes during startup, thereby extending the operational lifespan of both the strobe and the power system. The vibrant blue lens provides high visibility, making it effective for signaling alerts even in low-light or smoky conditions. Mounting hardware is sold separately, offering flexibility for diverse installation requirements. This strobe light is an essential component for facilities prioritizing safety and operational continuity in challenging environments. Key specifications include: Voltage Rating: 24VDC, Color: Blue, Connection Type: 4-Wire, Certifications: UL and cUL CID1, Features: Explosion-Proof, Limited In-Rush. The SKU for this model is 27XST-024B-4-MOD. Federal Signal is a trusted manufacturer known for durable and reliable industrial signaling devices.
  • Explosion-proof construction for hazardous locations
  • UL and cUL CID1 certified for safety compliance
  • 24VDC power rating for broad compatibility
  • Limited in-rush feature protects electrical systems
  • Vibrant blue lens for high visibility

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
Blue
Connection Type
4-Wire
Diameter
8.82 in (224 mm)
Environmental Conditions
-67 to 150 DEG F
Flashes Per Minute
80 FLPM
Lens Color
Blue
Lens Style
Fresnel
Light Source
Strobe Tube
Material
Aluminum/Glass
Model
27XST-4-MOD
Mounting
3/4-Inch NPT Pendant,Ceiling,Wall
Mounting Type
Sold Separately
NEMA Rating
Type 4X, IP66, IP69K Enclosure
Operating Temperature
-67D to +150DF (-55D to +66DC)
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
CSFM,Marine,UL,cUL
Standard
UL Listed/cUL Listed/CSFM Approved/Marine Rated
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-024B-4-MOD Strobe Light

This guide provides step-by-step instructions for installing and wiring the 27XST-024B-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 it is securely fastened.

  2. Remove the terminal block

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

  3. Connect the wiring

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

  4. Ground the installation

    If required by local building codes, connect the earth ground wire to the green screw in the ceiling mount.

  5. Secure the light fixture

    Thread the fixture clockwise into the mount and tighten it securely. Ensure all threaded joints are properly tightened to maintain explosion-proof integrity.

  6. Test the installation

    Reconnect power to the light and verify that it operates properly. Conduct a routine check to ensure the system activates as intended.

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.