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UC4 Electric Bells for Schools and Factories
UC4 electric reminder bells with chrome-plated iron gongs, plastic bases and nominal sizes from 2 to 12 inches. The catalogue lists AC 220V versions and warns that standard ringing should stay within 20 seconds per activation.
Specifications
Product Overview
The UC4 range provides a powered ringing signal for school schedules, factory shifts and other reminder tasks. Seven catalogue models run from UC4-55mm to UC4-300mm. Nominal inch sizes and metric gong diameters are listed separately because the labels are not exact inch-to-millimeter conversions. The description specifies double copper coils except on the 2-inch size. A switch or compatible timer controls the supply; a timer is not stated to be included. The source image explicitly cautions against extended ringing on the standard version. If continuous operation is required, request a separately confirmed configuration rather than leaving a standard bell energized.
Key Features
- Seven nominal size options
- Chrome-plated gong and plastic base
- Supply-controlled ringing for reminders
- Voltage and longer-duty customization can be requested
Frequently Asked Questions
How long can a standard bell ring?+
The catalogue notice recommends ringing within 20 seconds each time and warns that prolonged ringing may damage the bell. Request a confirmed long-duty version if your application needs more.
Does the 2-inch bell have double coils?+
The detailed text explicitly excludes the 2-inch bell from the double-copper-coil statement. Confirm its internal configuration rather than applying the general picture notice to every size.
Is a timer included?+
The source describes ringing when powered and use with a switch. It does not specify an included timer; list any controller or timer requirement in the inquiry.
Are the published coverage areas guaranteed?+
No test conditions or acoustic measurement method are supplied for the image's area estimates. Choose using the required audibility and site conditions, not the area figures alone.
Can voltage or duty cycle be customized?+
The source explicitly offers voltage and longer-ringing customization. Confirm the required voltage, operating schedule, size and quantity before production.
Applications
School timetable reminders, factory shift changes and workplace announcements. Confirm the required timer or switching equipment and electrical installation. No fire-system certification or explosion-proof rating is established by this listing.
Buyer Resources
Buying guides related to this product
Review selection, specification and inquiry guidance before confirming the configuration for your project.
