
Contact for Pricing
Overview
- Explosion-proof design for hazardous locations
- Limited in-rush current protection
- UL and cUL CID1 certified
- 120 VAC voltage rating, green illumination
- Mount sold separately – flexible installation options
Specifications
-67 to 150 | DEG F |
1.14 | A |
1.9 @ 24VAC/1.14 @ 120VAC/1.14 @ 240VAC | A |
10,000 | HR |
11.37 H x 8.82 W x 8.82 D | IN |
120 50-60Hz | VAC |
2,000,000 | CND |
80 | FLPM |
Amperage | 1.14 A |
Amperage Rating | 1.14 AMP |
Application | Indoor/Outdoor |
Average Life | 10,000 HR |
Brand Name | Federal Signal |
Candela Power | 850 ECP |
Candela Power Peak | 2,000,000 |
Candle Power | 2,000,000 CND |
Color | Green |
Diameter | 8.82 in (224 mm) |
Environmental Conditions | -67 to 150 DEG F |
Flashes Per Minute | 80 FLPM |
Lens Color | Green |
Lens Style | Fresnel |
Light Source | Strobe Tube |
Material | Aluminum/Glass |
Material | Poly |
Model | 27XST |
Mounting | 3/4-Inch NPT Pendant/Ceiling/Wall |
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) |
Power Peak | 2000000 |
Series | 27XST |
Shape | Cylindrical |
Size | 11.37 H x 8.82 W x 8.82 D IN |
Special Features | Voltage In-Rush Limiting PCB Design |
Standard | CSFM,Marine,UL,cUL |
Standard | UL Listed/cUL Listed/CSFM Approved/Marine Rated |
Style | Strobe |
Type | Explosion-Proof Strobe Light |
Voltage Rating | 120 50-60Hz VAC |
Package Dimensions (L x W x H) | 11.5 IN x 17.5 IN x 12 IN |
Package Dimensions (L x W x H) | 29.21 cm x 44.45 cm x 30.48 cm |
Package Weight (Imperial) | 14.700 L |
Package Weight (Metric) | 6.668 kg |

27XST-240G-MOD
Strobe Light, Explosion-Proof, Limited In-Rush, UL and cUL CID1, 240VAC, Green, Mount Sold SeparatelyFrequently 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-120G-MOD Strobe Light
This guide provides step-by-step instructions for the installation and initial setup of the 27XST-120G-MOD strobe light in hazardous locations.
Estimated time: 45m
Tools needed:
Screwdriver, Wire strippers, Multimeter
Supplies needed:
Mounting screws, Terminal connectors, Corrosion-inhibiting grease
- Mount the ceiling support
Install the ceiling mount on the support surface using the four external mounting slots. Ensure the mount is securely attached.
- Remove the terminal block
Loosen the two mounting screws to remove the terminal block from the ceiling mount.
- Connect the power supply
Connect the incoming positive side (+) of the power source to the terminal marked L+. Connect the outgoing positive side (+) to terminal B. Connect the incoming negative side (−) to terminal N– and the outgoing negative side (−) to terminal A. Ensure that the polarity is observed to prevent damage.
- Ground the installation
If required by local building codes, connect the earth ground wire to the green screw in the ceiling mount.
- Lubricate threaded joints
Ensure that the threads on the threaded joint are clean and lubricated with a corrosion-inhibiting grease to prevent galling.
- Secure the fixture
Thread the fixture clockwise into the mount and tighten it securely to ensure it is firmly attached.
- Test the light system
After installation, reconnect power and test the light system to ensure it operates properly. Verify that all connections are secure and functioning.
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.


