English
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ZN23-40.5
Fenarro
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Engineered with advanced vacuum interruption technology, the ZN23-40.5 ensures excellent breaking capacity, long service life, and stable mechanical performance. It is particularly suitable for industrial enterprises, substations, and metallurgy industries, including arc furnace applications, where frequent operations and high reliability are required.
This product complies with GB1984-89 “AC High Voltage Circuit Breakers” and relevant IEC standards.
Power substations for high-voltage protection and control
Industrial enterprises requiring stable power distribution
Metallurgical industries such as steelmaking and arc furnace applications
Mining operations with frequent switching needs
Indoor switchgear systems in 40.5kV networks
High Breaking Capacity – Designed to handle overload and short-circuit currents safely.
Vacuum Interruption Technology – Ensures arc-free, stable, and reliable switching.
Frequent Operation Ready – Especially suited for metallurgical and steelmaking industries requiring continuous switching.
Long Mechanical Life – Capable of thousands of operating cycles with minimal wear.
Compact Indoor Design – Optimized for easy integration into modern switchgear.
Standards Compliance – Meets GB1984-89 and related IEC standards for high-voltage breakers.
Enhanced Safety – Arc-free operation reduces explosion and fire hazards.
| Serial No. | Name | Unit | Data |
|---|---|---|---|
| 1 | Rated Voltage | kV | 40.5 |
| 2 | Rated Lightning Impulse Withstand Voltage (Peak Value) | kV | 185 |
| 3 | 1min Power Frequency Withstand Voltage | kV | 95 |
| 4 | Rated Frequency | Hz | 50 |
| 5 | Rated Current | A | 1250, 1600, 2000 |
| 6 | Rated Short - circuit Breaking Current | kA | 25, 31.5 |
| 7 | Rated Short - time Withstand Current | kA | 25, 31.5 |
| 8 | Rated Peak Withstand Current | kA | 63, 80 |
| 9 | Rated Short - circuit Duration | s | 4 |
| 10 | Rated Short - circuit Breaking Time | ms | ≈90 |
| 11 | Rated Short - circuit Making Current | kA | 80 |
| 12 | Rated Operating Sequence | - | Open - 0.3s Close & Separate - 180s Close & Open |
| 13 | Closing Time | ms | 50~85 |
| 14 | Opening Time | ms | 40~80 |
| 15 | Number of Rated Short - circuit Breaking Current Operations | times | 20 |
| 16 | Mechanical Life | times | 10000 |
| 17 | Rated Capacitor Bank Breaking Current | A | 630 |
| 18 | Rated Power of Energy - storage Motor | W | 25 |
| 19 | Rated Voltage of Energy - storage Motor | V | AC/DC220, 110 |
| 20 | Energy - storage Time | s | <15 |
| 21 | Rated Voltage of Closing and Opening Electromagnet | V | AC/DC220, 110 |
| 22 | Rated Current of Overcurrent Release | A | 5 |
| 23 | Rated Current of Auxiliary Switch | A | 10 |
Q1: What voltage level is the ZN23-40.5 designed for?
A1: It is designed for 40.5kV, 50Hz three-phase indoor systems.
Q2: Is it suitable for frequent switching operations?
A2: Yes, it is specifically designed for frequent operations in industries like metallurgy and arc furnace applications.
Q3: What standards does this breaker comply with?
A3: It complies with GB1984-89 “AC High Voltage Circuit Breakers” and related IEC standards.
Q4: Can it be used in substations?
A4: Yes, it is widely used in power substations as a control and protection switch.
Q5: What industries commonly use this breaker?
A5: It is ideal for industrial enterprises, metallurgy, mining, and high-voltage distribution systems.
Engineered with advanced vacuum interruption technology, the ZN23-40.5 ensures excellent breaking capacity, long service life, and stable mechanical performance. It is particularly suitable for industrial enterprises, substations, and metallurgy industries, including arc furnace applications, where frequent operations and high reliability are required.
This product complies with GB1984-89 “AC High Voltage Circuit Breakers” and relevant IEC standards.
Power substations for high-voltage protection and control
Industrial enterprises requiring stable power distribution
Metallurgical industries such as steelmaking and arc furnace applications
Mining operations with frequent switching needs
Indoor switchgear systems in 40.5kV networks
High Breaking Capacity – Designed to handle overload and short-circuit currents safely.
Vacuum Interruption Technology – Ensures arc-free, stable, and reliable switching.
Frequent Operation Ready – Especially suited for metallurgical and steelmaking industries requiring continuous switching.
Long Mechanical Life – Capable of thousands of operating cycles with minimal wear.
Compact Indoor Design – Optimized for easy integration into modern switchgear.
Standards Compliance – Meets GB1984-89 and related IEC standards for high-voltage breakers.
Enhanced Safety – Arc-free operation reduces explosion and fire hazards.
| Serial No. | Name | Unit | Data |
|---|---|---|---|
| 1 | Rated Voltage | kV | 40.5 |
| 2 | Rated Lightning Impulse Withstand Voltage (Peak Value) | kV | 185 |
| 3 | 1min Power Frequency Withstand Voltage | kV | 95 |
| 4 | Rated Frequency | Hz | 50 |
| 5 | Rated Current | A | 1250, 1600, 2000 |
| 6 | Rated Short - circuit Breaking Current | kA | 25, 31.5 |
| 7 | Rated Short - time Withstand Current | kA | 25, 31.5 |
| 8 | Rated Peak Withstand Current | kA | 63, 80 |
| 9 | Rated Short - circuit Duration | s | 4 |
| 10 | Rated Short - circuit Breaking Time | ms | ≈90 |
| 11 | Rated Short - circuit Making Current | kA | 80 |
| 12 | Rated Operating Sequence | - | Open - 0.3s Close & Separate - 180s Close & Open |
| 13 | Closing Time | ms | 50~85 |
| 14 | Opening Time | ms | 40~80 |
| 15 | Number of Rated Short - circuit Breaking Current Operations | times | 20 |
| 16 | Mechanical Life | times | 10000 |
| 17 | Rated Capacitor Bank Breaking Current | A | 630 |
| 18 | Rated Power of Energy - storage Motor | W | 25 |
| 19 | Rated Voltage of Energy - storage Motor | V | AC/DC220, 110 |
| 20 | Energy - storage Time | s | <15 |
| 21 | Rated Voltage of Closing and Opening Electromagnet | V | AC/DC220, 110 |
| 22 | Rated Current of Overcurrent Release | A | 5 |
| 23 | Rated Current of Auxiliary Switch | A | 10 |
Q1: What voltage level is the ZN23-40.5 designed for?
A1: It is designed for 40.5kV, 50Hz three-phase indoor systems.
Q2: Is it suitable for frequent switching operations?
A2: Yes, it is specifically designed for frequent operations in industries like metallurgy and arc furnace applications.
Q3: What standards does this breaker comply with?
A3: It complies with GB1984-89 “AC High Voltage Circuit Breakers” and related IEC standards.
Q4: Can it be used in substations?
A4: Yes, it is widely used in power substations as a control and protection switch.
Q5: What industries commonly use this breaker?
A5: It is ideal for industrial enterprises, metallurgy, mining, and high-voltage distribution systems.
