Product Overview
24kV Outdoor Vacuum Circuit Breaker from a Professional Power Equipment Manufacturer
The ZW32-24 outdoor vacuum breaker for circuit systems provides reliable security for the power systems of the 24kV distribution (630 A and 1250 A) and the breaking capacity of any circuit up to 25 kA. It’s suitable for outdoor use and uses the vacuum circuit-breaking method of electric interruption while utilizing durable materials for building the equipment.
Applications & circuit protection
This circuit breaker can be used for 24 kV outdoor distribution lines, as well as pole-mounted substations and substations that require dependable fault interruption.
- Electric lines of 24 kV: protection of the voltage transformer lines.
- Pole-mounted substations: compact outdoor protection devices.
- Substations: safe operation of the transformers.
- Industrial installations: reliable protection of outdoor electric installations.
Construction & operating reliability
With the help of a spring mechanism, the vacuum interrupter, insulated for external use, ensures high-quality switching in exposed areas.
- Vacuum interrupter for effective arc suppression.
- 630A or 1250A rated equipment with breaking power of 20 to 25 kA.
- Withstand voltage rating for power frequency of 50 kV.
- Outdoor pole-type design.
- Mechanical reliability of operation of up to 10,000 operations.
Technical Parameter
| Parameter | Value |
| Rated voltage | 24 kV |
| Rated frequency | 50 Hz |
| Rated current | 630 / 1250 A |
| Rated short-circuit breaking current | 20 / 25 kA |
| Rated peak making current | 50 / 63 kA |
| Power-frequency withstand (1 min) | 50 kV |
| Lightning impulse withstand | 95 kV |
| Mechanical life | 10,000 operations |
| Standard | IEC 62271 / GB 1984 |
Breaker Cost & Quotation
Inquire about a quote for Outdoor Circuit Breakers that specify their rated current, interrupting capacity, and quantity. Factory prices apply to wholesale and project orders.
- Rapid quote for standard ratings
- No additional charge for OEM branding
- Export packing is free of charge
Breaker Wiring & Control Connection
The power terminals link the breaker to the circuit, while control terminals receive closure or opening commands, plus extra contacts for help. The Wiring schematic and information of terminals accompany the Outdoor Vacuum Circuit Breaker.
- Schematic shows labels of terminals
- Control circuit was expertly tested and operated
- Extra contacts provide signals
Compare Breaker Options
Select the right breaker for your duty:
| Feature | This Breaker | Alternative |
| Voltage | As specified | Other classes available |
| Breaking | Per model | Higher breaking on request |
| Mechanism | Spring / magnetic per model | Manual or motor operation |
| Mounting | Indoor / outdoor per model | Pole or panel mounting |
Export Markets & Country Compatibility
Electricity utility companies and distributors in Latin America, Southeast Asia, Africa, and South Asia are supplied with Outdoor Vacuum Circuit Breakers. Specifications, standards, and certifications are assigned to this product depending on the receiving country.
Breaker Dimensions, Weight & Packing
The dimensions and weight of the breaker rely on both the voltage class and the type of operating mechanism that is used. Breakers designed for outdoor pole mounting are characterized by their small dimensions and low weight, whereas indoor breakers are offered ready to be mounted on a panel. Knowing the dimensions and weight is possible by referring to the drawings included in the order.
- Dimensions according to the model drawing.
- The mechanism is locked, and poles are protected during transport.
- Mounting accessories are included in the delivery.
Standards & certifications
Constructed according to the IEC 62271 and GB 1984 criteria, the type-tested ZW32-24 has been validated according to the standards of the public utility.
- The following standards were adhered to: IEC 62271 / GB 1984
- Construction based on a vacuum interrupter technology.
- Insulation level tested at 24 kV.
- Proved performance consistent with different capacities.
OEM & B2B supply support
As a renowned manufacturer of power equipment, Subian Electric offers outdoor vacuum circuit breakers to customers who belong to the infrastructure sector, contractors, as well as distributors of various types, along with their samples and technical services.
If you require different ratings or configurations, please do not hesitate to contact us.
- Samples available.
- Flexibility in quantity for both project and B2B acquisitions.
- OEM and ODM services.
- Customized marking and packaging.
- Technical documentation and certification services.
Frequently Asked Questions
What is the ZW32-24 used for?
It is used to offer protection against overloads and short circuits for outdoor distribution systems operating at 24kV with capacities reaching up to 1250A and 25kA.
What ratings are available?
The ratings available for ZW32-24 are 630A and 1250A. Breaking capacities equal to 20kA or 25kA are also available.
Is it suitable for pole mounting?
Of course, this outdoor design is compact and can be installed on poles or in substations as needed.
Do you support export projects?
Yes, we provide our customers with documentation, enabling utilities, EPC contractors and dealers worldwide to get our products in different quantities.
