ZW32-24 Outdoor Vacuum Circuit Breaker (24kV)
The ZW32-24 is a 24kV outdoor vacuum circuit breaker with spring operating mechanism, rated at 630A with short-circuit breaking capacity up to 25kA. Widely used in hydropower stations, industrial substations, renewable energy grid connections, and rural/urban distribution networks. Control voltage options include 110VDC, 220VDC, and 220VAC. Fully compliant with IEC 62271-100.
Caracteristiques Principales
- 24kV rated voltage — higher insulation class for demanding environments
- 630A rated current, short-circuit breaking up to 25kA
- Spring-operated mechanism — reliable, low maintenance
- Control voltage options: 110VDC / 220VDC / 220VAC
- Enhanced lightning impulse withstand: 125kV (peak)
- Power frequency withstand voltage: 65kV (1 min)
- Mechanical life: 10,000 operations
- Outdoor pole-mounted or substation installation
- Type Test and Routine Test certificates available
Specifications Techniques
| Rated Voltage | 24 kV |
| Rated Current | 630 A |
| Rated Frequency | 50 Hz |
| Rated Short-Circuit Breaking Current | 25 kA |
| Rated Short-Time Withstand Current | 25 kA / 4s |
| Rated Peak Withstand Current | 63 kA |
| Mechanical Life | 10,000 operations |
| Electrical Life | 50 operations (at rated short-circuit breaking current) |
| Lightning Impulse Withstand Voltage | 125 kV (peak) |
| Power Frequency Withstand Voltage | 65 kV (1 min) |
| Closing Time | ≤ 300 ms |
| Opening Time | 20–60 ms |
| Control Voltage Options | 110VDC / 220VDC / 220VAC |
| Operating Mechanism | Spring (CT19 / CT20) |
| Ambient Temperature | -40°C to +40°C |
| Altitude | ≤ 1000m (higher altitude available on request) |
Applications
Conformite aux Normes
Produits Associes
ZW32-12 Outdoor Vacuum Circuit Breaker
The ZW32-12 is a pole-mounted outdoor vacuum circuit breaker rated at 12kV, widely used in rural and urban power distribution networks. Features a compact spring-operated mechanism for reliable switching operations.
SPV-12 Outdoor Vacuum Circuit Breaker (12kV)
The SPV-12 is a 12kV oil-free, SF6-free, maintenance-free outdoor vacuum circuit breaker pioneered by NAIJI Electric. Features three-phase pillar-type structure with longitudinal magnetic field vacuum arc extinguishing technology and solid epoxy resin insulation (APG vacuum casting). The spiral groove contacts produce a rotating magnetic field, accelerating ionized particle diffusion and reducing arc energy. Special alloy shielding rapidly absorbs arc energy for low heat, short extinguishing time, and long service life. Imported outdoor-grade epoxy resin with integral vacuum casting — proven by 20+ years of outdoor operation with no surface carbonization. Every unit X-ray inspected. Weighs only 2/3 of comparable products.
SPV-24 Outdoor Vacuum Circuit Breaker (24kV)
The SPV-24 is a 24kV oil-free, SF6-free, maintenance-free outdoor vacuum circuit breaker by NAIJI Electric. Extended voltage class with enhanced insulation levels (125/145kV lightning impulse withstand). Same proven longitudinal magnetic field rotating arc technology and solid epoxy resin insulation (APG vacuum casting) as the SPV-12. Every unit X-ray inspected. Weighs only 2/3 of comparable products. Ideal for 20kV distribution systems and higher voltage applications.
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