Overview

The HYD1 Series Molded Case Circuit Breaker (hereinafter referred to as “circuit breaker”) is suitable for the circuits with AC voltage up to 690 V, rated frequency of 50 Hz and rated current of 0.1 A to 80 A. It is used for overload, phase failure, short circuit protection and infrequent starting control of three-phase squirrel-cage motors, distribution line protection and infrequent load conversion, and isolation.

This product complies with the requirements of GB/T 14048.2, GB/T14048.4, IEC 60947-2, and IEC60947-4-1.

Normal working conditions

1. The altitude of the installation location shall not exceed 2,000 m in general.

2. The ambient air temperature shall not be lower than -5°C or higher than +40°C.

3. The relative air humidity shall not exceed 50% at the temperature of +40°C. The average minimum temperature of the wettest month shall not exceed +25°C, and the average maximum relative humidity of that month shall not exceed 90%.

4. The contamination grade of the surrounding environment is Grade 3.

5. The installation categories are II and III (load level and power distribution level).

6. The inclination between the installation surface and the vertical plane shall not be more than ±5°.

7. Rated working system: uninterrupted working system.