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Federal Signal Corporation

Q-Siren®

The Q-Siren® by Federal Signal is a powerful electro-mechanical siren known for its distinctive, long-distance warning sound and iconic chrome finish. Designed for durability and reliability, it features a heavy-duty coaster clutch for a longer coast-down sound. Ideal for emergency response vehicles, it offers both pedestal and recessed mounting options.

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Features

  • Distinctive Sound: Recognizable long-distance warning sound.
  • Clutch Design: Unique coaster clutch for longer coast-down sound and reduced amp draw.
  • Mounting Options: Available in pedestal and recessed mounting.
  • Material: Streamlined and polished chrome.
  • Hands-Free Operation: Optional foot switch kit for hands-free use.
  • Durability: Constructed with tough 3/8-inch steel for rugged use.

How is it used?

The Q-Siren® is mounted on fire trucks to provide a powerful warning sound during emergency responses. It can be operated hands-free with the optional foot switch kit, allowing the driver to focus on navigating the vehicle.


Who uses it?

Firefighters and emergency responders use the Q-Siren® to alert traffic and pedestrians during emergency situations, ensuring a clear path for the fire truck.


What is it used with?

The Q-Siren® can be used with various mounting brackets and kits, including the Q-MT bracket for flat and curved bumpers and the Q2B-SWKIT foot switch kit for hands-free operation.


Material

The Q-Siren® is made from high-quality chrome or black chrome, providing a sleek and durable finish that complements the fire truck's appearance.


Installation Process for Q-Siren®

Before Installation

  • Qualifications: Ensure proficiency in automotive electrical procedures and systems, and safety warning equipment installation.
  • Safety Precautions: Wear hearing protection to minimize exposure to loud sounds. Avoid sounding the siren indoors or in enclosed areas.

Unpacking the Siren

  • Inspection: Check the siren for any damage that may have occurred during transit. If damaged, file a claim with the carrier and do not attempt to install or operate it.

During Installation

  • Mounting:
    • Recessed Mounting: Install the siren in the bumper for a streamlined look.
    • Pedestal Mounting: Mount the siren on the bumper using the pedestal for a traditional appearance.
  • Drilling: When drilling into the vehicle structure, ensure both sides of the surface are clear of anything that could be damaged. Use an ESD-approved cover to prevent metal shavings from entering the unit
  • Wiring:
    • Route the siren wires away from airbag sensors and deployment paths.
    • Follow the vehicle's wiring diagram to ensure the installation does not affect vehicle operation and safety functions.

Electrical Connections

  • Power Supply: Connect the siren to a 12V DC power source, ensuring proper grounding.
  • Foot Switch Kit (Optional): Install the foot switch kit for hands-free operation.

Testing

  • System Check: Test the siren system and light system to ensure both are operating properly.
  • Verification: Verify that no shorts exist and that the siren is facing forward for maximum effectiveness.

After Installation

  • Documentation: Provide a copy of the installation instructions to the instructional staff and all operating personnel.
  • File Instructions: Keep the instructions in a safe place for future reference during maintenance or reinstallation

  • Operating Current: 100 A
  • Operating Temperature: -22˚ to +149˚ F (-30˚ to +65˚ C)
  • Sound Output: 123 dB @ 10-ft
  • Dimensions: Height: 10.3 in (26.2 cm), Width: 13.6 in (34.5 cm), Diameter: 9.9 in (25.1 cm)
  • Ship Weight: 49.0 lb (23.0 kg)

Differences between Q-Siren® Model: Q2B-012NNSD and Q2B-P

  • Q2B-012NNSD: This model is designed for recessed mounting in the bumper, providing a streamlined look.
  • Q2B-P: This model comes with a pedestal for bumper mounting, offering a more traditional appearance