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FZW32-12 & FZW32-40.5
Fenarro
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The FZW32-12 & FZW32-40.5 Outdoor High Voltage Isolating Vacuum Load Break Switch (hereinafter referred to as the load break switch) is a new generation high-voltage electrical product independently developed and manufactured by our company.
It has successfully passed type tests and long-term operational verification, proving its stable and reliable performance. All technical indicators meet the requirements of GB3804 and IEC standards.
This switch is suitable for rated voltages of 12kV and 40.5kV, with rated current up to 1250A, in three-phase AC 50Hz power distribution networks.
Urban & rural distribution networks – load breaking and isolation
Substations – for sectionalizing and protection
Industrial and mining enterprises – for power distribution and control
Distribution automation systems – compatible with intelligent controllers
Overhead line systems – for outdoor medium-voltage switching、
Wide Voltage Range – Applicable for both 12kV and 40.5kV systems.
Vacuum Interruption Technology – Ensures safe and reliable arc extinction.
Isolation Function – Provides clear and visible break point for safety.
Compact and Lightweight – Easy installation and maintenance.
High Reliability – Proven through strict type tests and field operation.
Compliance with Standards – Meets GB3804 and IEC requirements.
Adaptable Design – Suitable for different power grid applications.
Ambient Temperature: -30℃ ~ +60℃
Altitude: ≤3000m (higher insulation levels required for high-altitude areas)
Relative Humidity: Daily average ≤95%, monthly average ≤90%
Seismic Intensity: ≤8 degrees
Environment: Free from fire, explosion, severe pollution, chemical corrosion, and violent vibration
| Serial No. | Name | Unit | Parameter |
|---|---|---|---|
| 1 | Rated Voltage | KV | 12/40.5 |
| 2 | Rated Frequency | HZ | 50 |
| 3 | Rated Current | A | 630/1250 |
| 4 | Rated Active Load Breaking Current | A | 630/1250 |
| 5 | Rated Loop Breaking Current | A | 630/1250 |
| 6 | 5% Rated Active Load Opening Current | A | 62.5 |
| 7 | Rated Cable Charging Opening Current | A | 25 |
| 8 | 1min Power Frequency Withstand Voltage: Vacuum Chamber, Phase - to - phase, Phase - to - ground, Isolating Contacts | KV | 42/68/95/110 |
| 9 | Lightning Impulse Withstand Voltage: Phase - to - phase, Phase - to - ground, Isolating Contacts | KV | 75/125/185/215 |
| 10 | Rated Short - time Withstand Current (Thermal Stability) | KA | 25 |
| 11 | Rated Short - circuit Duration | S | 4 |
| 12 | Rated Peak Withstand Current (Dynamic Stability) | KA | 63 |
| 13 | Rated Short - circuit Making Current | KA | 63 |
| 14 | Mechanical Life | times | 10000 |
| 15 | Allowable Wear Thickness of Vacuum Arc Extinguishing Contacts | mm | 0.6 |
| 16 | Manual Operating Torque | Nm | ≤300 |
Q1: What voltage levels are supported by the FZW32 series?
A1: It supports 12kV and 40.5kV three-phase AC systems.
Q2: What standards does the switch comply with?
A2: It complies with GB3804 and IEC international standards.
Q3: What is the main function of this load break switch?
A3: It is used for load current breaking, isolation, and sectionalizing in medium-voltage distribution networks.
Q4: Can it be applied in industrial power systems?
A4: Yes, it is suitable for industrial enterprises, substations, and rural distribution grids.
Q5: Does it support automation?
A5: Yes, it can be combined with controllers to integrate into distribution automation systems.
