Electromechanical Two-Tone Doorbell ORNO BELIS OR-DP-BD-157 with Built-in Transformer 230V→8V, White

The Electromechanical Two-Tone Doorbell ORNO BELIS OR-DP-BD-157 with Built-in Transformer 230V→8V, White is a wired chime designed for mains-powered entrances that require a low-voltage acoustic drive. The unit integrates a step-down transformer to convert 230 V mains to an 8 V output for the bell mechanism, producing a reliable two-note mechanical chime. The white enclosure is intended for residential or small commercial use where a discreet, hard-wired door signalling device is needed.

Advantages

This electromechanical doorbell provides consistent acoustic signalling through mechanical actuation, ensuring audible two-tone notification without electronic sound synthesis. The built-in transformer eliminates the need for a separate external power converter and simplifies installation to standard mains wiring. The compact white housing offers compatibility with common interiors and durable construction suitable for long-term wired installation.

Suitable for

• Private homes and apartments with mains doorbell wiring
• Small offices, reception areas and retail entrances
• Replacement of existing wired chimes where an 8 V drive is required
• Installations that prioritise simple, reliable mechanical sound generation over electronic tones

Key specifications

• Power supply: designed to be connected to 230 V AC mains
• Built-in step-down transformer providing an 8 V output for the chime mechanism
• Sound type: two-tone mechanical chime
• Mounting: wall-mountable housing suitable for indoor entrance areas
• Housing colour: white

How to use

Connect the doorbell unit to the building’s 230 V AC supply following local electrical regulations and ensure the power is turned off before wiring. The internal transformer provides the necessary 8 V output to the chime, so connect the chime terminals to the door push-button circuit as specified in the product manual. Once installed and powered, pressing the door push-button activates the mechanical two-note chime. Routine inspection of mounting and wiring is recommended to maintain consistent operation.

Usage recommendations

For safe installation, use a qualified electrician to perform mains connections and to verify compatibility with existing door push-buttons and wiring. Avoid exposure to direct moisture and install the unit in a sheltered indoor location. If loudness adjustment or different timbre is required, choose a location with suitable acoustics or consider complementary devices designed for larger spaces.