Working humidity:- 25℃~65℃；

Altitude not exceeding 2000m;

When the ambient temperature is 40 ℃ and the relative humidity does not exceed 50%, and the monthly average lowest temperature of the wettest month does not exceed 25C, the relative humidity does not exceed 90%;

Pollution level: 2;

The external magnetic field in any direction of the installation site should not exceed 5 times the geomagnetic field;

Installation category: II, III;

The circuit breaker should be installed on a standard guide rail, and the product should generally be installed vertically, with no significant impact or vibration at the installation location.

● Short circuit protection ● Overload protection ● Isolation function ● Leakage protection function ● Leakage self-locking function ● Leakage can be turned off function ● Leakage delay function

Product model and name, such as YCB5LE-80 residual current operated circuit breaker; Extreme numbers, such as 2P.

Instantaneous type and rated current, such as C20A.

The remaining operating current, such as whether the 30mA leakage function can be turned off, defaults to selectable off (no note needed). If the leakage function can be turned off without the need, please note that it cannot be turned off. The default leakage tripping time is t ≤ 0.1 (no need to specify). If the leakage tripping time is t ≤ 0.2, please specify, such as t ≤ 0.2, the order quantity, such as 500 units.

Example of ordering: YCB5LE-80 residual current operated circuit breaker; 2P， C20A，30mA， 500 units. Or YCB5LE-80 residual current operated circuit breaker; 2P， C20A，30mA， Leakage cannot be turned off, t≤0.2， 500 units