10-40A Safety Breaker With Outer Cover TDB4

Technical Data

Product Overview

The Earth Leakage Safety Breaker is an advanced power distribution safety device that integrates overload, short-circuit, and earth leakage protection, specifically designed to prevent electric shock risks and electrical fires. Utilizing high-sensitivity residual current detection technology, it can identify line leakage faults and rapidly cut off power within milliseconds. Its core value lies in providing a life-protection current threshold within 30mA, ensuring electrical safety in residential, industrial, and commercial environments, thereby eliminating safety accidents caused by insulation damage or equipment leakage.

Core Functions

Rapid Earth Leakage Protection: Continuously monitors line residual current, triggering immediate trip when leakage exceeds 30mA with response time ≤0.1 seconds.

Overload and Short-Circuit Protection: Built-in thermal-magnetic trip unit provides dual protection with inverse-time overload protection and instantaneous short-circuit interruption.

Fault Status Indication: Equipped with mechanical ON/OFF windows and color markers, clearly displaying leakage/overload/short-circuit fault types.

Auto-Reclosing Lockout: Requires manual reset after leakage trip, preventing automatic reclosure before fault elimination.

Main Application Fields

Residential Power Safety: Main protection for household distribution boxes, dedicated protection for socket circuits and kitchen/bathroom wiring.

Public Building Security: End-point protection in damp areas such as school laboratories, hospital operating rooms, and mall swimming pools.

Industrial Power Protection: Mobile equipment power supplies, temporary power at construction sites, outdoor operation distribution boxes.

Rural Agricultural Applications: Farmland irrigation pump stations, aquaculture power supply, agricultural product processing workshops.

Special Location Protection: UPS input for data centers, communication base stations, new energy charging pile circuits.