In the world of industrial automation, clear visual and audible signals are essential to maintain efficiency, safety, and effective communication between machines and operators. One of the most reliable solutions in this field is the Schneider Electric XVBC9M Audible Warning Unit. Designed for performance and durability, this 90dB signaling module is part of Schneider Electric’s renowned Harmony XVB series → – a family known for modular design and adaptability in industrial environments.
In this article, we’ll explore everything you need to know about the Schneider Electric XVBC9M Audible Warning Unit, including its technical specifications, certifications, compatible accessories, installation insights, and suitable applications.
What is the Schneider Electric XVBC9M Audible Warning Unit?
The Schneider Electric XVBC9M Audible Warning Unit is a 70mm stackable buzzer designed to deliver powerful sound alerts in industrial and commercial settings. With a sound output adjustable between 70dB and 90dB at a distance of 1 meter, it ensures that operators can hear important machine signals, even in noisy environments. This device is powered by a 120–230VAC voltage range and can generate either a continuous or intermittent tone depending on the application needs.
Its modular design allows it to integrate seamlessly with other Harmony XVB signaling components, such as light modules and mounting bases, creating a fully customizable tower light assembly for equipment status indication and safety alerts.
Key Features and Technical Specifications of the Schneider Electric XVBC9M
The Schneider Electric XVBC9M Audible Warning Unit is engineered for durability, flexibility, and reliability. Here are its detailed specifications:
|
Specification |
Details |
|
Mounting Diameter |
70mm (fits standard XVB base) |
|
Supply Voltage |
120–230VAC, 50/60Hz (also compatible with 230VDC) |
|
Sound Output |
Adjustable 70–90dB at 1m |
|
Tone Type |
Continuous or intermittent |
|
Frequency |
Approx. 2.8kHz |
|
Current Consumption |
Less than 25mA at rated voltage |
|
Protection Rating |
IP66 (panel mount), IP65 (tube mount) |
|
Operating Temperature |
–25°C to +50°C |
|
Storage Temperature |
–40°C to +70°C |
|
Weight |
0.18kg |
|
Housing Material |
Durable plastic enclosure with clamping ring |
|
Certifications |
UL508, CSA C22.2 No.14, CE, UKCA, EAC, CCC, GOST, RoHS-compliant |
With these specifications, the Schneider Electric XVBC9M ensures reliable operation under harsh industrial conditions, maintaining consistent performance despite temperature fluctuations, vibration, or humidity.
Compliance and Global Certifications
Industrial environments demand components that meet strict international standards. The Schneider Electric XVBC9M Audible Warning Unit is fully compliant with IEC/EN 60947‑5‑1 control‑circuit device requirements → and certified by multiple global agencies.
Key certifications include:
- UL 508 and CSA C22.2 No. 14 (North America)
- CE, UKCA, and EAC (Europe and Eurasia)
- CCC (China) and GOST (Russia)
- RoHS-compliant (environmentally friendly)
These certifications ensure that the Schneider Electric XVBC9M can be safely deployed in a wide range of regions and industries, meeting quality and environmental standards. Its IP66/NEMA 4X protection rating (when mounted on the panel base) ensures complete dust-tightness and resistance to strong water jets, making it suitable for demanding industrial environments.
Installation and Mounting Accessories
The modular nature of the Schneider Electric XVBC9M makes installation straightforward. It can be used as a standalone audible alert or combined with visual modules to form a multi-signal tower light system.
Compatible Accessories
To assemble the XVBC9M properly, you’ll need a compatible base unit and, optionally, a support tube. Here are the main accessories:
- XVBC21 Base Unit – The required base for electrical connections and mounting. It offers IP66 protection when panel-mounted.
- XVBZ0 Aluminum Fixing Base – Used for vertical support-tube mounting, providing IP65 protection.
- Support Tubes – Available in 80mm, 380mm, and 780mm heights (XVBZ0 series), offering flexibility for various installations.
- Mounting Brackets and Plates – For attaching to horizontal or vertical structures.
- Top Covers or Diffusers – For protection and enhanced visibility.
Easy Assembly
Up to five signaling modules can be stacked vertically on one base. Each module – whether audible or visual – snaps securely into place using an integrated clamping ring, which automatically connects the internal power terminals. This plug-and-play approach simplifies setup and maintenance.
Alternative Models and Successors
While the Schneider Electric XVBC9M Audible Warning Unit has been a reliable staple in industrial signaling, it was officially discontinued in mid-2025. Schneider Electric recommends upgrading to the Harmony XVB7 Series, which offers enhanced performance, LED technology, and better modular integration.
Comparable Models
- XVBC9B – 12–48VAC/DC version of the same audible warning unit, ideal for low-voltage applications.
- Harmony XVB7 Series – The new-generation 70mm tower light series featuring energy-efficient LED modules, buzzers, and advanced connectivity.
Despite being discontinued, many facilities still use and maintain the XVBC9M due to its proven reliability and availability of compatible parts. It remains an excellent choice for those seeking a robust audible alert in legacy systems.
Applications of the Schneider Electric XVBC9M Audible Warning Unit
The Schneider Electric XVBC9M Audible Warning Unit serves as a crucial component in machine-status signaling and safety alert systems. It communicates operational states, warnings, and faults audibly to ensure quick operator response.
Common Use Cases:
- Machine Status Indication – Alerts for machine start/stop or standby modes.
- Fault or Error Signaling – Notifies operators of system malfunctions or process deviations.
- Resource Alerts – Indicates conditions like "no material," "low stock," or "maintenance required."
- Operator Call Systems – Used in assembly lines or manufacturing cells to request supervisor assistance.
- Safety Warnings – Provides audible alarms in hazardous zones or emergency situations.
By producing a 90dB tone, the XVBC9M ensures the alert remains audible even in large or noisy production floors. When combined with LED light modules, it forms a comprehensive signaling system that conveys both visual and sound alerts – crucial for safety compliance and efficient workflow.
Advantages of Using the Schneider Electric XVBC9M
Here are several reasons why industries continue to trust the Schneider Electric XVBC9M Audible Warning Unit:
- High Sound Output: Adjustable between 70–90dB for flexible use across environments.
- Customizable Signal: Choose between continuous or intermittent tones to differentiate alert types.
- Modular Design: Easily stackable with other XVB modules for combined audio-visual signaling.
- Durability: IP66-rated construction ensures longevity under dust, vibration, and moisture exposure.
- Global Certification: Meets international safety and performance standards.
- Simple Maintenance: Quick-connect clamping system allows easy replacement and reconfiguration.
Whether for process automation, manufacturing, or packaging lines, the Schneider Electric XVBC9M continues to be a trusted component in improving operational visibility and communication.
Why Upgrade to the Harmony XVB7 Series?
As industries modernize, Schneider Electric’s Harmony XVB7 series replaces older XVB models like the XVBC9M with next-generation features. The XVB7 line integrates LED lighting, improved modular stacking, and energy-efficient components that deliver higher performance with lower maintenance.
Key improvements include:
- Enhanced brightness and sound clarity.
- Lower energy consumption through LED technology.
- More flexible configuration and accessory compatibility.
- Streamlined maintenance and extended product lifecycle.
While the Schneider Electric XVBC9M remains functional in existing systems, new installations are encouraged to transition to the XVB7 range for long-term support and innovation benefits.
Related Product Collections
Before we wrap up, explore these related collections available at Industrial Electrical Warehouse to find compatible products and complementary solutions for your signaling systems:
⚙️ Warning Systems (Sound & Visual)
Explore industrial buzzers, beacons, and stack lights designed for safety and operational alerts. Perfect for creating a complete audio-visual signaling solution.
⚙️ Assembly
Find essential control-panel components, including tower light parts, circuit breakers, and related accessories to support your automation setup.
Enhance your system control with programmable logic controllers and automation devices for complete machine signaling integration.
Conclusion: Reliable Industrial Signaling with Schneider Electric XVBC9M
The Schneider Electric XVBC9M Audible Warning Unit has proven itself as one of the most dependable signaling devices for industrial automation. Its combination of high acoustic output, durable IP-rated housing, modular design, and global certification makes it an outstanding choice for any facility requiring reliable audible signaling.
Even though the XVBC9M is discontinued, it continues to serve countless installations worldwide as a durable, effective component of Schneider’s Harmony XVB line. For newer projects, the Harmony XVB7 series stands as its worthy successor, ensuring the same reliability with enhanced modern features.
To learn more or explore compatible replacements, visit the Schneider Electric XVBC9M product page or check the Harmony XVB7 Tower Light Collection to find the ideal signaling solution for your industrial needs.
