Advanced Safety Features: The Fi circuit breaker socket instantly detects residual currents and cuts off power within 0.1 seconds to prevent personal and equipment damage. It supports a two-pole shut-off with a rated residual current of 10 mA and 16 AMP. Universal Compatibility: Designed to fit all European standard plugs, this circuit breaker features a test circuit and a reset button. It is suitable for a wide range of electrical devices (AC 220-250V, up to 4000 W), including major appliances like refrigerators and air conditioners. and Safe Construction: Made from non-conductive, fireproof plastic material, this residual current circuit breaker is IP44 rated for outdoor use and withstands harsh conditions like high temperatures and humidity. Safe operation is ensured from +40 °C to -25 °C. User-Friendly Operation: safety by following these steps: plug the device into a socket, the 'Reset' button until the red light goes out, then the 'Test' button to activate protection (red light illuminate). Regular testing is recommended for optimal safety. Voltage:AC250V Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on Colour:White Material:plastic Package Contents: 4 x converter socket Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.