The DZ20LE series residual current circuit breaker (hereinafter referred to as residual current circuit breaker) is a current operated electronic residual current operated circuit breaker
As a protective device, it is mainly suitable for distribution networks with AC 50Hz, rated voltage of 380V, and rated current up to 630A. It is used for personal electric shock protection, as well as to prevent fire hazards caused by grounding fault currents due to equipment insulation damage. It can also be used to distribute electrical energy, protect lines and power equipment from overload and short circuit, and can be used for infrequent line switching. Rated leakage action value of residual current circuit breaker
Adjustable according to actual usage requirements.  

This product complies with the GB14048.2-2001 standard.

Applicable Environment

Surrounding air temperature
1. The upper limit of ambient air temperature shall not exceed+40 ℃;
2. The average temperature of the surrounding air within 24 hours shall not exceed+35 ℃;
3. The lower limit of ambient air temperature shall not be lower than -5 ℃.
The altitude of the installation location shall not exceed 2000m
atmospheric conditions
When the relative temperature of the atmosphere is at the highest temperature around+40 ℃
Not exceeding 50%, at lower temperatures, there can be higher relative
Humidity, the average lowest temperature in the wettest month shall not exceed+25 ℃,
The monthly average maximum relative temperature of the month shall not exceed 90%, and shall be tested
Considering the condensation that occurs on the surface of the product due to temperature changes.
Pollution level: Level 3.
external magnetic field
Any external magnetic field near the installation site of residual current circuit breakers
The direction should not exceed 5 times the geomagnetic field.

Product model and its meaning:



Main technical parameters

Basic parameters of residual current circuit breaker (see Table 1)
The rated ultimate short-circuit breaking capacity and rated residual making breaking capacity of residual current circuit breakers (see Table 2)