Overview
The H8BH-125 Series Disconnecting Switch is mainly used for isolation in distribution lines with AC 50Hz, rated voltage up to 400 V and rated current up to 125 A. It can also be used for closing and opening circuits infrequently under specified conditions.
The product complies with GB/T 14048.3 and IEC 60947-3.
Normal working conditions
1. The upper limit of ambient air temperature shall not exceed +40°C, the lower limit shall not be lower than -5°C,and the average value within 24 hours shall not exceed +35°C.
2. The altitude of the installation location shall not exceed 2,000 meters.
3. The relative atmospheric humidity of the installation location shall not exceed 50% at the maximum ambient temperature of +40°C, and the humidity may be higher at a lower temperature. The average maximum relative humidity of the wettest month shall not exceed 90%, and the average temperature of that month shall not exceed +25°C. Measures must be taken for the condensation on the product due to temperature changes.
4. The contamination grade: Grade 2.
5. The installation category: II and III.
6. Installed with 35 mm standard guide rails.
7. Rated working system: uninterrupted working system.
Model description
1、Model description
Technical parameters
1. Thermal current Ith: 125 A.
2. Rated voltage Ue: 50 Hz, 230 V (1P) and 400 V (2P, 3P and 4P).
3. Rated current Ie: 32 A, 40 A, 50 A, 63 A, 80 A, 100 A and 125 A.
4. Number of poles: 1P, 2P, 3P and 4P.
5. Rated short-time withstand current Icw: 2.5 kA, t = 1 s.
6. Rated short-circuit making capacity Icm: 3.5 kA.
7. Rated insulation voltage Ui: 690 V
8. Service life: The operation cycle is 10,000 times, of which 1,500 times are loaded (Ie ≤ 100 A).
The operation cycle is 8000 times, of which 1000 times are loaded (Ie ≤ 125 A).
The operating frequency is 120 times/h.
9. Use category: AC-22A.
10. Protection degree: IP20.
