High Quality EI Door Bell Transformer

I. Product Details

1. Core Parameters & Performance

Modeled EI-57-240, it supports an input voltage range of COM ~ 480V (50/60Hz) and delivers a stable 24V output with up to 1000mA current. It combines the high reliability of a low-frequency power transformer and the precise voltage control of a voltage-stabilizing converter, preventing doorbell stuttering or silence from voltage fluctuations—making it a high-performance household doorbell transformer.

2. Structure & Craftsmanship

- Compact-sized for easy fitting into most household distribution boxes, saving space for indoor/outdoor installation.

​

- Dustproof, moisture-proof shell with Class B insulation resists environmental damage, extending service life.

​

- Built-in optimized circuits minimize power loss, balancing doorbell stability and energy efficiency.

3. Adaptability

It seamlessly fits new doorbell system setups or old power supply replacements, requiring no major modifications to existing systems.

II. Core Uses

1. Doorbell Power Supply: As a household doorbell transformer, its 24V/1000mA stable output ensures sensitive triggering and clear ringtones, powered by the voltage-stabilizing converter’s precision.

​

2. New & Old System Compatibility: It provides compliant power for new doorbells and replaces faulty old power supplies, avoiding full system replacements and cutting costs via the low-frequency power transformer’s reliability.

​

3. Multi-scenario Application: Dustproof, moisture-proof, and wide-voltage design suits indoor entrances and outdoor courtyards, integrating the strengths of all three transformers.