
Eterna BT4812 White Multi Voltage Bell / Chime Transformer IP20
BT4812
White Multi Voltage Bell / Chime Transformer – 4V, 8V & 12V Output, Double Insulated, IP20 Rated
This white multi-voltage bell/chime transformer is designed to power a wide range of door chimes and bell systems. Offering 4V, 8V, and 12V tappings, it provides installation flexibility and compatibility with most traditional and modern chimes. Housed in a durable nylon casing, the unit is double insulated and includes a thermal cut-out for added protection.
- Multi-Voltage Output: Selectable 4V, 8V, or 12V tappings to suit a wide range of chimes and bells in domestic or commercial installations.
- Double Insulated Design: No earth connection required, simplifying installation and ensuring compliance with modern safety standards.
- Durable Nylon Construction: Robust, non-conductive body suitable for flush or surface mounting in dry indoor areas.
- 1 Amp Rated: Provides sufficient capacity to operate most single or multiple chime systems reliably.
- Built-in Thermal Cut-Out: Automatically disconnects in case of overheating, protecting both the transformer and connected devices.
Technical Specification
- Output Voltages: 4V, 8V, 12V (selectable)
- Current Rating: 1 Amp
- Construction: White nylon
- Insulation Class: Double insulated (no earth required)
- Safety Features: Thermal cut-out
- IP Rating: IP20 (indoor use only)
✅ Choose this multi-voltage transformer for reliable, safe power to your bell or chime system—ideal for modern residential and light commercial installs!
Product | Door Chime |
Type | Transformer |
Delivery Costs
Our standard delivery charge to UK mainland addresses is £5.90 ex-VAT.
Take advantage of FREE* Delivery when you spend over £100 (per order) ex-VAT.
*Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £12.00 ex-VAT.
Solar Panels, Batteries and Inverters
Due to their size all solar panels, batteries and inverters orders up to 50 qty will be despatched on a pallet and incur a £120** ex-VAT delivery charge.
**£180 ex VAT to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes.
Click here to find out more.