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Overview
- Blue strobe for high visibility
- 240 VAC voltage rating
- UL & cUL CID2 hazardous location certification
- Durable, weather‑proof enclosure
- Energy‑efficient LED technology
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 | Blue |
Diameter | 9.25 in (235 mm) |
Environmental Conditions | -31 to 104 DEG F |
Flashes Per Minute | 80 DFLPM |
Lens Color | Blue |
Lens Style | Fresnel |
Light Source | Strobe Tube |
Material | Poly |
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 |
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-S120240BS
Steady LED Hazardous Location Division Listed Warning Light, Surface Mount, 120-240VAC, Blue - Available in 24VAC/DC, 120-240VAC and 277VAC. Five lamp/lens colors: Amber, Blue, Clear, Green and Red. Flashing mode standard, configurable to steady-burn. 50,000 hour, vibration resistant LED lamp. Dome guard included. Available in 3/4-inch NPT pipe mount or surface mount. Type 4X, IP66 enclosure. IP69K compliant. Marine Listed. UL and cUL Listed for Class I, Division 2, Groups A, B, C and D & Class II, Division 1, Groups E, F and G & Class III.
191XL-277BS
Steady LED Hazardous Location Division Listed Warning Light, 277VAC, Blue - Available in 24VAC/DC, 120-240VAC and 277VAC. Five lamp/lens colors: Amber, Blue, Clear, Green and Red. Flashing mode standard, configurable to steady-burn. 50,000 hour, vibration resistant LED lamp. Dome guard included. Available in 3/4-inch NPT pipe mount or surface mount. Type 4X, IP66 enclosure. IP69K compliant. Marine Listed. UL and cUL Listed for Class I, Division 2, Groups A, B, C and D & Class II, Division 1, Groups E, F and G & Class III.
151XST-120M
Hazardous Location Strobe Warning Light, 120VAC, Pipe Mount, Magenta - Available in 12-24VDC, 120VAC and 230-240VAC. Five lens colors: Amber, Blue, Clear, Green and Red. 10,000-hour high-intensity strobe. Available in 3/4-inch NPT pipe mount or surface mount. Dome guard included. Indoor/outdoor use. Conformal coated PCB. Type 4X, IP66 enclosure. IP69K compliant. Marine rated. UL and cUL Listed for Class I, Division 2, Groups A, B, C and D & Class II, Division 1, Groups E, F and G & Class III.
G-LED-AC-D-B-H
Global Series LED Light, Hazardous Location, UL and cUL CID2, Zone Listed, 120-240VAC, Ex d Surface Mount, High-Profile Lens, BlueFrequently Asked Questions
Is the 371DST suitable for hazardous environments?
Yes, the Model 371DST Commander® Double Strobe is explicitly listed as a Hazardous Location Light within the document.
What does the IP69K rating mean for products?
IP69K signifies protection against close-range, powerful, high-temperature water jets and complete dust ingress prevention. It is designed for high-pressure and high-temperature washdowns.
Where are IP69K rated products typically used?
IP69K products are ideal for applications in food and beverage, wastewater, pharmaceutical, marine, and medical facilities or equipment manufacturing.
What tests do IP69K products undergo?
IP69K products are dust-tight tested and endure high-pressure steam jet cleaning with 1160–1450 psi water sprays at 176°F (80°C) from 4–6 inches.
What is the highest IP rating offered?
Federal Signal offers products with an IP69K rating, which is the highest standard on the Ingress Protection (IP) rating scale.
How does IP69K protection compare to NEMA Type 4?
IP69K protects against high-pressure, high-temperature water jets from short distances, while NEMA Type 4 handles high-volume, low-pressure water from longer distances. Both are dust-tight.
What certifications do Federal Signal products have?
Federal Signal products are designed to meet or exceed UL, CSA, CSFM, IECEx, and other global certifications. The company also holds ISO 9001 Certification.
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, Multimeter
Supplies needed:
Mounting screws, Terminal connectors, 1” NPT conduit hub, 1” NPT close-up plug
- 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 larger 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 the strobe-spinning assembly. Route the supply wires into the housing, strip 0.28” of insulation from the ends, and connect them to the terminal block, ensuring proper polarity for DC models. Connect the earth ground to the terminal block.
- Reassemble and Test the Light
Reassemble the light by securing the strobe-spinning assembly and dome. Ensure the dome is tightly closed. Turn on the power and test the light to ensure it operates correctly.
- Establish Maintenance Procedures
After installation, provide a copy of the instruction sheet to all operating personnel and establish a routine check procedure to ensure the light installation remains intact and operational.
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.






