
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 Options:
- PRIORITY DELIVERY – Next Working Day (All items in stock and ordered before 3 pm) - £7.08 inc-VAT. (£5.90 ex-VAT)
- Orders Over £100 (before VAT): We offer free standard shipping on all orders shipped to UK mainland addresses
- Orders under £100 (before VAT): Our standard delivery fee to UK mainland addresses is £5.90 ex-VAT (£7.08 inc-VAT)
*Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £12 ex-VAT for all orders (Prices subject to change).
Items requiring specialist shipping:
- Orders containing Solar Panels, Batteries and/or Inverters: Up to 50 qty will be dispatched on a pallet and incur a £120 ex-VAT delivery charge**.
**Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £180 ex-VAT (Prices subject to change).
Contact us if you have any further questions.