DZ47LE-63系列漏电断路器适用于交流50Hz，额定工作电压单极两线、两极230V，三极、三极四线、四极400V，额定电流至63A的线路中，用来对人进行间接接触保护，以及对建筑物及类似用途的线路进行过电流保护。也可对由于过电流保护装置不动作而持续存在的接地故障引起的火灾提供保护。带过电压保护的漏电断路器还能对由于电网故障引起电压过高进行保护。

本系列产品在低压配电系统中已经越来越多地被采用作为接地故障和直接接触、间接接触电击的后备保护。

产品符合GB 16917-1和IEC 61009-1标准。

The DZ47LE‑63 series residual current circuit‑breakers apply to AC 50 Hz circuits with rated operational voltage of 230 V for 1‑pole‑2‑wire and 2‑pole units, and 400 V for 3‑pole, 3‑pole‑4‑wire and 4‑pole units, with rated current up to 63 A. They provide indirect‑contact protection for persons, as well as over‑current protection for wiring in buildings and similar applications. They also offer fire protection against persistent earth‑faults arising from non‑operation of over‑current protective devices. Models with over‑voltage protection additionally protect against excessive voltage caused by power‑grid faults.

This series is increasingly adopted in low‑voltage distribution systems as backup protection against earth faults and electric shock from direct and indirect contact.

The products comply with GB 16917‑1 and IEC 61009‑1 standards.