DZ20L series residual current circuit breakerDetailed product description：

purpose
The DZ20L series residual current circuit breaker is suitable for circuits with AC 380V, frequency 50Hz, and rated current of 600A and below. It is used for personal electric shock protection and can also be used to prevent equipment insulation damage and fire hazards caused by ground fault currents. And it can be used for overload, short circuit, and undervoltage protection of the line, as well as for infrequent switching of the line.

At present, there are two types of residual current circuit breakers produced in China: rated residual current action current of 10-50mA can protect people, and rated residual current action current of 100-500mA can be used as insulation protection for grounding current.

Application scope of DZ20L series residual current circuit breaker

1. Surrounding air humidity: The upper limit should not exceed+40 ℃, the lower limit should not be lower than -5 ℃, and the average value over 24 hours should not exceed+35 ℃.
2. The altitude of the installation location shall not exceed 2000 meters.
3. Installation location: When the ambient air humidity is+40 ℃, it should not exceed 50%. At lower temperatures, there should not be higher relative humidity. The average maximum relative humidity in the wettest month is 90%, and the average minimum temperature in that month is+25 ℃, taking into account condensation on the surface of the product due to temperature changes.
4. Pollution level 3.
5. Installation category III.
Circuit breakers should generally be installed vertically.
7. The external magnetic field of the installation site of the residual current circuit breaker should not exceed 5 times the geomagnetic field in any direction.