Operating conditions Altitude ≤2000m. Ambient temperature Range: -5℃ ~ +40℃, with daily average ≤ +35℃. Atmospheric condition: when the highest temperature is +40℃, the relative humidity of air shall be no more than 50%, higher relative humidity shall be allowable at lower temperature, for instance air humidity may reach 90% at +20 ℃. As for dews, which contigently appear due to change of temperature, special steps should be taken. Pollution Level: Level 3. Inclination between installation p...

General 1. Overload protection 2.Short circuit protection 3. Controlling 4. Used in residential building, non-residential building, energy source industry and infrastructure. Curve Specifications

Feature Feature 1: Current limiting ability Limiting the rise of short circuit current of circuit. The peak short circuit current and I2t power are much lower than the value expected. U shape fixed contact design The U shape fixed contact design achieves the technique of pre-breaking: When the short circuit current pass through the contact system, there are forces that repel each other on the fixed contact and moving contact. The forces were produced with short circuit current synchronous and...

General 1. Protection against overload and short-circuit currents 2. Protection against the effects of sinusoidal alternating earth fault currents 3. Protection against indirect contacts and additional protection against direct contacts. 4. Protection against fire hazard caused by insulation faults 5. Used in residential building 6. According to the type of instantaneous release classified as follows : type B(3-5)ln, type C(5-10)ln，type D(10-20)ln Release Curve Specifications Overall And ...