Sounder Cum Strobe is a critical fire safety device that combines both audible and visual signals. It produces a loud sound and a bright strobe light to warn people in the event of a fire or emergency. In this guide, we’ll cover its electrical specifications, functionality, benefits, installation process, and key considerations when choosing one.

Key Electrical Specifications of Sounder Cum Strobe

The sounder cum strobe relies on several important electrical features to perform effectively. Below are the key specifications that determine how it works:

Light Source & Color: High Power Cool White LED

The light source utilizes high-power cool white LEDs, known for their energy efficiency, durability, and bright output. These LEDs provide clear visibility, which is crucial for emergency alerts. Additionally, the cool white color ensures that the light remains visible under various lighting conditions.

Pulse Duration: 20ms

The pulse duration of the strobe is 20ms, meaning the flash lasts for a very short period. This brief pulse ensures quick and effective flashes, which is important for grabbing attention in an emergency. With this rapid pulse, people can immediately recognize the alarm.

Operating Voltage: 24V DC (16-33V DC)/FWR

The operating voltage is 24V DC, with a range of 16V to 33V DC or FWR (Full-Wave Rectified). This wide voltage range allows the device to work reliably with various fire alarm systems, making it versatile and compatible with most setups.

Max. Current Draw: 67-93mA

The current draw is between 67mA and 93mA, which ensures the device operates efficiently while consuming minimal power. This allows for energy savings without compromising performance.

Sounder Output: 75 dB to 85 dB

The sound output ranges from 75 dB to 85 dB, providing an adjustable alarm that can be tailored to the size and noise level of the environment. The louder the sound, the more effective the warning becomes, especially in large or noisy spaces.

Wiring: 2 Wire Type

The sounder cum strobe uses a 2-wire type connection, making installation straightforward. This simple wiring system makes it easier to integrate into existing fire alarm circuits, reducing installation time.

Flash Rate: 1 Flash Per Second

The flash rate is set at 1 flash per second, which is standard for most fire alarm systems. This steady flash rate ensures that the visual alert is easily noticed and remains effective during an emergency.

Size: 140(W) * 120(H) * 51(D) mm

With dimensions of 140mm (W) x 120mm (H) x 51mm (D), the sounder cum strobe is compact but powerful. Its size allows it to be installed without taking up too much space while providing optimal coverage.

Mounting Options: Standard 4″ * 4″ Back Box

The device is designed to fit into a standard 4″ * 4″ back box, simplifying the installation process. This common mounting option allows for a smooth and quick setup.

Screw Terminals: #12 to #18 AWG Wires

The sounder cum strobe supports #12 to #18 AWG wires for screw terminals, ensuring secure and stable wiring connections that are critical for reliable operation.

Benefits:

The sounder cum strobe offers several key benefits that make it an excellent choice for fire safety systems:

1. Dual Alerts: By combining both auditory and visual alerts, this device ensures that people with hearing impairments or those in noisy areas can still recognize the alarm.
2. Energy Efficiency: Thanks to high-power LED technology and its low current draw, this device provides long-term cost savings through reduced energy consumption.
3. Clear and Effective Alerts: The sounder cum strobe delivers both a loud sound and a bright flash, ensuring that the emergency signal reaches all areas of the building.
4. Compliance: This device meets industry safety regulations, making it suitable for use in buildings that must adhere to fire safety codes.
5. Durability: With a durable design and long-lasting LED lights, the device requires less maintenance and provides dependable performance.

How to Install a Sounder Cum Strobe

Follow these steps to successfully install a sounder cum strobe:

1. Choose the Right Location: Install the device where it is both visible and audible. Mount it at a height of 2.3 to 3 meters to optimize sound and light distribution.
2. Mounting: Use a standard 4″ * 4″ back box for installation. Secure the device with the appropriate screws and ensure that it is firmly in place.
3. Wiring: Connect the device using a 2-wire type system. Ensure that the wires are securely attached to the screw terminals.
4. Powering the Device: The sounder cum strobe operates on 24V DC. Verify that the power supply falls within the range of 16V to 33V DC to ensure proper operation.
5. Test the Device: After installation, perform a test to ensure both the sound and light functions work correctly. Regular testing helps maintain reliability.

Factors to Consider When Choosing a Sounder Cum Strobe

When selecting a sounder cum strobe, keep these factors in mind:

1. Sound Level and Flash Rate: Ensure that the sound level (75 dB to 85 dB) and flash rate (1 flash per second) are suitable for the size and type of the building.
2. System Compatibility: Check that the device works with your existing fire alarm system. Consider compatibility with wireless or voltage-specific setups.
3. Environmental Conditions: If you need a sounder cum strobe for outdoor use, choose a model that is weather-resistant and durable.
4. Compliance: Ensure that the device meets fire safety regulations, such as NFPA 72 or BS 5839, to guarantee that it meets all legal safety standards.
5. Energy Efficiency: Look for models with high-power LED lights, as they are more energy-efficient and have a longer lifespan, reducing maintenance needs.

Conclusion

Sounder Cum Strobe is a vital component of any fire safety system, offering both audible and visual alerts to ensure maximum safety during emergencies. With features like high-power cool white LEDs, low current draw, and easy 2-wire installation, it provides reliable and cost-effective performance. When choosing a sounder cum strobe, consider factors such as sound output, installation environment, and compliance with fire safety regulations. By making the right choice, you can enhance the safety of your building and meet fire alarm system requirements.