Electromechanical Two-Tone Doorbell Bottorf SUB10000328 85 dB 230 V Silver

The Bottorf electromechanical two-tone doorbell SUB10000328 operates on 230 V mains power and produces a two-tone chime at approximately 85 dB. Designed for wall mounting at residential or small commercial entrances, this doorbell uses mechanical striker and bell mechanisms to generate a clear audible signal without digital synthesis. The metal housing includes a front button and connection points compatible with standard doorbell wiring, providing a straightforward replacement or new-install option where a traditional electromechanical sound is preferred.

Advantages

This electromechanical doorbell provides a distinct two-tone sound at 85 dB that is easily recognizable and effective at typical entryway distances. Its operation on 230 V eliminates the need for extra transformers in compatible installations, and the mechanical design offers long-term reliability with a simple, serviceable mechanism. The silver finish and compact footprint allow for inconspicuous wall mounting in a range of interior and exterior sheltered locations.

Suitable for

• Residential front doors and apartment entryways
• Small offices and commercial premises with standard mains wiring
• Replacement of existing electromechanical doorbells
• Locations where a clear, mechanical two-tone chime is preferred over digital sounds

Key specifications

• Operating voltage: 230 V AC
• Sound output: approximately 85 dB
• Two-tone mechanical chime
• Wall-mount design with front push button
• Metallic silver housing

How to use

Mount the unit on a suitable vertical surface near the entrance, ensuring the chosen location is protected from direct weather if the model is intended for sheltered outdoor use. Connect the doorbell to the building’s 230 V supply following local electrical regulations, switching off power before making connections. Use standard two-wire doorbell wiring to the button and chime terminals; if replacing an existing unit, transfer wiring to the matching terminals. After wiring, restore power and test the button to confirm the two-tone mechanical chime functions and the unit produces the expected sound level.

Usage recommendations

Install or service the doorbell only with the mains power disconnected and, if uncertain about wiring, consult a qualified electrician. For reliable operation, avoid exposing the unit to heavy rain or direct water; install under a porch or other shelter if used at an exterior entrance. Periodic visual inspection and, if accessible, light cleaning of the striker area will help maintain clear sound quality.