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FZW32-40.5
Fenarro
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Its compact structure, lightweight body, and robust performance make it particularly suitable for outdoor pole-mounted installations in modern distribution networks.
Medium-voltage overhead power lines for switching and fault protection
Substations and industrial power systems requiring 40.5kV protection
Urban and rural distribution networks with frequent operations
Renewable energy integration such as wind or solar farm connections
Outdoor installations in harsh climates and high-altitude regions
High Reliability – Solid-sealed poles and optimized mechanism ensure long-term stable performance.
Maintenance-Free – Entire service life without the need for routine maintenance.
Long Service Life – Excellent mechanical and electrical endurance.
Compact & Lightweight – Small size and reduced weight for easier transport and installation.
Wide Environmental Adaptability – Operates reliably from -30℃ to +60℃, up to 3000m altitude.
High Withstand Capability – Designed for strong mechanical strength and arc-quenching ability.
Smart Functionality – Compatible with intelligent monitoring and automation systems.
| Serial No. | Item | Unit | Parameter |
|---|---|---|---|
| 1 | Rated Voltage | kV | 40.5 |
| 2 | Rated Current | A | 1250/1600 |
| 3 | Rated Frequency | Hz | 50/60 |
| 4 | Power Frequency Withstand Voltage (1min) (Wet/Dry) (Phase - to - phase, Phase - to - ground/Across Contacts) | kV | 80/95/95 |
| 5 | Lightning Impulse Withstand Voltage (Peak Value) (Phase - to - phase, Phase - to - ground/Across Contacts) | kV | 185 |
| 6 | Rated Short - circuit Breaking Current | kA | 25/31.5 |
| 7 | Rated Short - circuit Making Current (Peak Value) | kA | 63/80 |
| 8 | Rated Peak Withstand Current | kA | 63/80 |
| 9 | 4s Short - time Withstand Current | kA | 25/31.5 |
| 10 | Rated Operating Cycle | - | Open - 0.1s - Close - 3s - Open - 3s - Close - 6s - Open - 60s Recovery |
| 11 | Number of Rated Short - circuit Breaking Current Operations | times | 30 |
| 12 | Mechanical Life | times | 10000 |
| 13 | Operating Mechanism Control Voltage | V | AC/DC220 |
| 14 | Power Frequency Withstand Voltage of Secondary Circuit (1min) | kV | 2 |
| Serial No. | Item | Unit | Parameter |
|---|---|---|---|
| 1 | Contact Opening Distance | mm | 16±1 |
| 2 | Contact Travel | mm | 42±5 |
| 3 | Opening Speed | m/s | 4.0 - 1.8 |
| 4 | Closing Speed | m/s | 0.4 - 0.8 |
| 5 | Contact Opening Rebound Time | ms | ≤5 |
| 6 | Distance Between Phase Centers | mm | 602±2 |
| 7 | Asynchronism of Three - phase Opening and Closing | ms | ≤12 |
| 8 | Loop Resistance of Each Phase Conductor | μΩ | ＜80 |
| 9 | Closing Time | ms | 25 - 45 |
| 10 | Opening Time | ms | 20 - 45 |
| 11 | Weight | kg | About 950 |
Q1: What is the rated voltage of the FZW32-40.5 circuit breaker?
A1: It is designed for medium-voltage networks with a rated voltage of 40.5kV.
Q2: Is the FZW32-40.5 breaker maintenance-free?
A2: Yes, it is engineered to be completely maintenance-free throughout its service life.
Q3: Can this breaker operate in high-altitude regions?
A3: Yes, it is suitable for installations up to 3000 meters above sea level.
Q4: What environments can it operate in?
A4: It is designed to work in temperatures from -30℃ to +60℃, withstand high humidity, and operate in pollution level IV environments.
Q5: Where is the FZW32-40.5 breaker commonly used?
A5: It is widely applied in overhead distribution networks, substations, industrial facilities, and renewable energy systems.
