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Overview
- Hazardous Location Certified: UL and cUL CID2 compliant for use in potentially explosive atmospheres.
- High-Visibility Amber Strobe: Provides intense, high-contrast illumination for clear warning signals.
- Dual Strobe Design: Ensures rapid, unmistakable visual alerts for enhanced safety.
- 240 VAC Operation: Designed for standard industrial power systems.
- Durable Industrial Construction: Built to withstand harsh environmental conditions.
Specifications
-31 to 104 | DEG F |
0.3 | A |
0.30 | A |
10,000 | HR |
11.38 H x 9.25 W x 9.25 D | IN |
240 | VAC |
240 50-60Hz | VAC |
240VAC | V |
750,000 | CND |
80 | FLPM |
Amperage | 0.3 A |
Amperage Rating | 0.3 AMP |
Application | Indoor/Outdoor |
Average Life | 10,000 HR |
Brand Name | Federal Signal |
Candela Power | 1000 |
Candela Power Peak | 750,000 |
Candle Power | 750,000 CND |
Color | Amber |
Diameter | 9.25 in (235 mm) |
Environmental Conditions | -31 to 104 DEG F |
Flashes Per Minute | 80 DFLPM |
Lens Color | Amber |
Lens Style | Fresnel |
Light Source | Strobe Tube |
Material | Aluminum/Polycarbonate |
Model | 371DST |
Mounting | 1-Inch NPT Pipe,Surface |
Mounting | 1-Inch NPT Pipe/Surface |
NEMA Rating | Type 4X, IP66, IP69K Enclosure |
Operating Temperature | -31D to +104DF (-35D to +40DC) |
Power Peak | 750000 |
Series | Commander Double Strobe Light |
Series | 371DST |
Shape | Cylindrical |
Size | 11.38 H x 9.25 W x 9.25 D IN |
Special Features | Optional Wall And Corner Mount Brackets |
Standard | UL,cUL |
Standard | UL Listed/cUL Listed |
Style | Double Strobe |
Sub Brand | Commander |
Type | Double Strobe Hazardous Location Warning Light |
Voltage Rating | 240 VAC |
Package Dimensions (L x W x H) | 12.5 IN x 14.5 IN x 11.75 IN |
Package Dimensions (L x W x H) | 31.75 cm x 36.83 cm x 29.845 cm |
Package Weight (Imperial) | 8.300 L |
Package Weight (Metric) | 3.765 kg |

191XL-S120240A
LED Light, Hazardous Location, UL and cUL CID2, Surface Mount, 120-240VAC, Amber, Default Flashing
191XL-CN-S120240A
LED Light, Hazardous Location, UL and cUL CID2, Zone Listed, Surface Mount, 120-240VAC, Amber, Default FlashingFrequently Asked Questions
What is the IP69K rating for this product?
IP69K is the highest standard for ingress protection, designed for products exposed to high-pressure and high-temperature washdowns.
Where can IP69K products be used?
IP69K products are ideal for food and beverage, wastewater, pharmaceutical, marine, medical facilities, and medical equipment manufacturing applications.
Is the 371DST suitable for hazardous locations?
Yes, the Model 371DST Commander® Double Strobe is specifically listed as a Hazardous Location light.
How is IP69K dust protection tested?
Products are dust-tight tested in an Arizona A2 Dust chamber for 6 seconds every 15 minutes over five hours, using 2kg/m³ dust.
How is IP69K water protection tested?
Water protection testing involves high-pressure steam jets (1160–1450 psi) sprayed from 4 angles at 4–6 inches, at 176°F (80°C) every 30 seconds.
What are the benefits of IP69K products?
IP69K products reduce failures from water/dust ingress, increasing productivity and decreasing production downtime in harsh environments.
Does this product meet other global certifications?
Yes, Federal Signal's IP69K products meet or exceed UL, CSA, CSFM, IECEx, and other global certifications, and the company is ISO 9001 Certified.
How to Install the 371DST Strobe Light
This guide provides step-by-step instructions for installing and wiring the 371DST Strobe Light in hazardous locations.
Estimated time: 45m
Tools needed:
Screwdriver, Wire strippers, Drill
Supplies needed:
Mounting screws, Washers, Terminal connectors, 1” NPT conduit hub (user-supplied), 1” NPT close-up plug (user-supplied)
- Unpack and Inspect the Light
Carefully unpack the 371DST Strobe Light and inspect it for any damage that may have occurred during transit. If damaged, do not install and file a claim with the carrier.
- Mount the Light
Choose a flat horizontal surface or a 1” NPT pipe for mounting. For surface mounting, use the gasket as a template to mark four drill positions. Drill holes for mounting screws and a central hole for wire entry. Secure the light using the provided screws and washers.
- Make Electrical Connections
Disassemble the light by removing the dome assembly and strobe-spinning assembly. Route the supply wires into the housing, strip the ends, and connect them to the terminal block, ensuring to observe polarity for DC models. Connect the earth ground to the terminal block.
- Reassemble and Test the Light
Reassemble the light by securing the dome and strobe assemblies. Once reassembled, turn on the power and test the light 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.




