
Motor Siren MS-390
A motor-driven siren for use in electrical panels and control systems, designed to provide audible alarm signals during fault conditions or emergency events. The unit is built for direct mounting in distribution boards and control cabinets, and operates on standard 24 V DC power. It is intended for integration into industrial and commercial electrical installations where a reliable, self-contained alarm sounder is required.
- Self-contained motor siren with no external wiring needed beyond power supply
- Operates on 24 V DC, compatible with standard control circuits and low-voltage systems
- Designed for direct mounting in electrical panels and control cabinets
- Provides a loud, clear alarm sound suitable for industrial environments
- Simple integration into existing control systems without additional signal conditioning
Where It Is Used
- Mounting in electrical distribution boards to trigger an audible alarm during overcurrent or fault conditions
- Integrating into control cabinets for machinery or equipment that requires a visual and audible alarm
- Using in commercial building electrical systems where a reliable, low-voltage alarm is needed
- Installing in panel builders' assemblies for factory-built control panels
- Supporting emergency shutdown systems where immediate audible feedback is required
Who It Is For
- Electrical panel builders integrating alarm functions into custom control panels
- Industrial contractors installing alarm systems in machinery and control cabinets
- Electrical wholesalers supplying components for panel and control system builds
- OEM buyers requiring a standard siren for inclusion in their own branded equipment
- Solar and energy storage system integrators needing alarm feedback in control enclosures
Problems It Solves
- A standard relay or contactor does not provide audible feedback; this siren adds a clear alarm sound
- Existing systems may lack a dedicated alarm device; this unit is designed for direct panel mounting
- Low-voltage control systems need a compatible siren; this operates on 24 V DC without extra conversion
- Panel builders need a reliable, pre-wired siren to reduce assembly time and wiring errors
- Buyers need a compact, self-contained alarm that fits standard panel cutouts
Technical Features
- Motor-driven siren mechanism for consistent sound output
- Designed for mounting in electrical panels and control cabinets
- Operates on 24 V DC power supply
- Self-contained unit with internal motor and sounder
- No external signal conditioning required
Specifications
Full dimensional and rating data for this item is confirmed on enquiry rather than published here, so that every figure on this site is one we can stand behind. Ask us for the specification.
Materials
- Metal housing for durability and EMI shielding
- Internal motor and sounder components for reliable operation
Customisation Options
- Brand logo and model number can be printed on the unit for private-label and OEM orders
- Custom packaging and carton marking available upon request
Compared With The Alternatives
| Compared With | How This Product Differs |
|---|---|
| External buzzer with external driver | This siren is self-contained and requires only a 24 V DC supply. An external buzzer needs a driver circuit and more wiring. |
| Piezo siren | This motor siren produces a louder, more penetrating sound suitable for noisy industrial environments. Piezo sirens are quieter and less effective in high-noise settings. |
| External alarm module with relay | This unit integrates the sounder and motor in one compact device. An external module requires separate mounting and more wiring. |
Use Guide
- Mount the siren directly into a panel using the standard mounting holes
- Connect the 24 V DC power supply to the terminals; polarity must be correct
- Ensure the siren is not obstructed by panel components that could dampen sound
- Test the siren after installation by applying power to verify sound output
- Do not operate the siren continuously for long periods unless specified in the application
Related Products
Motor Siren MS-390 FAQ
Can this siren be used in a 24 V DC control circuit?
Yes. It is designed to operate on 24 V DC, which is standard in many control and automation systems.
Is the siren loud enough for industrial environments?
Yes. The motor-driven design produces a loud, clear alarm sound suitable for use in noisy industrial settings.
Can we have our own brand printed on the siren?
Yes. The brand name and model number can be printed on the unit for private-label and OEM orders. Provide your artwork and we will confirm feasibility.
What is the mounting method?
It is designed for direct mounting in electrical panels using standard mounting holes. No additional brackets are required.
Can I get a sample before placing a bulk order?
Yes. Samples are available upon request. Contact us with your requirements and we will arrange shipment.
Can this be used in a solar-powered system?
Yes, as long as the system provides a stable 24 V DC supply. It is suitable for use in solar control panels and battery backup systems.
Get A Quote For Motor Siren MS-390
Tell us the quantity, the destination port and whether you need your own brand on it. We will come back with what is workable.


