Weatherproof Zw20-12f Outdoor Vacuum Circuit Breaker with Controller Compatibility

• Customization: Available
• Breaking Capacity: Outdoor Distribution Network
• Operation: Electric Type
• Speed: High-Speed Circuit Breaker
• Arc-extinguishing Medium: Vacuum
• Installation: Fixed
• Structure: Sealed Tank Type
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Overcurrent Protection
• Certification: ISO9001-2000
• Transport Package: Plywood Case Packing
• Specification: Rated Voltage: 12kV, Frequency: 50Hz
• Trademark: CHKB
• Origin: Wenzhou, China
• HS Code: 8504403090
• Production Capacity: 100000
• Package Size: 400.00cm * 400.00cm * 300.00cm
• Package Gross Weight: 100.000kg

Product Description

ZW20-12F Outdoor High Voltage Intelligent Demarcation Vacuum Circuit Breaker

The ZW20-12F is an outdoor high-voltage switchgear designed for a rated voltage of 12kV and a three-phase AC 50Hz power system. Its primary function is to connect and interrupt load currents, overload currents, and short-circuit currents.

This circuit breaker is built for reliability and intelligence. It features a mature, sealed box structure filled with SF6 gas, providing excellent sealing performance that makes it immune to external environmental influences and essentially maintenance-free. Its spring operating mechanism utilizes a direct-acting chain main drive and a multi-stage trip system, ensuring high operational reliability. When paired with a dedicated controller, it meets the requirements of Distribution Automation systems and can perform traditional recloser functions reliably and efficiently.

Applications

This product is ideal for the protection and control of electrical systems in:

Substations
Industrial and mining enterprises
Urban and rural power distribution networks
It is particularly suited for applications with frequent switching operations and is an excellent component for automated urban power distribution networks (Grid Automation).

Normal Conditions of Use

Ambient temperature: not higher than +40°C, not lower than -15°C;
Air relative humidity: daily average is not more than 95%, monthly average is not more than 90%;
The altitude does not exceed 1000 meters;
The seismic intensity does not exceed 8 degrees;
Locations free from fire, explosion, severe pollution, chemical corrosion, and significant vibration.

Specification

Technical Specifications

(Custom configurations available upon request.)

Project		Unit	Parameter
Rated voltage		kV	12
Rated Frequency		Hz	50
Rated Current		A	630, 1000, 1250
Rated Short-Circuit Breaking Current		kA	20, 25
Rated Peak Withstand Current (Peak)		kA	50, 63
Rated Short-Time Withstand Current (4s)		kA	20, 25
Rated Short-Circuit Making Current (Peak)		kA	50, 63
Mechanical Life		times	10000
Rated Current Breaking Times		times	10000
Rated Short-Circuit Current Breaking Times		times	30
Power Frequency Withstand Voltage (1min): Phase-to-Phase & Earth / Across Isolation		kV	42 / 48
Lightning Impulse Withstand Voltage (Peak): Phase-to-Phase & Earth / Across Isolation		kV	75 / 85
Secondary Circuit Power Frequency Withstand Voltage (1min)		kV	4
Net Weight		kg	140 (with isolation ≤ 170)

After Sales Service

Standard Warranty: 12 months
Extended Warranty: Optional coverage up to 36 months.
Global Support: 24/7 technical assistance and spare parts supply.
Training: On-site or remote operation/maintenance training.

Company Profile

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FAQ

Q: What’s the lead time for orders?
A: Standard models ship in 15–30 days; customized units require 30–45 days.

Q: Do you provide after-sales service overseas?
A: Yes, we have partnered service centers in key regions.

Q: Can I request a customized bucket size?
A: Absolutely! We offer tailored attachments.

Q: What documents do you provide for export?
A: Full export package (Commercial Invoice, Packing List, Bill of Lading, COC, etc.).

Q: How do I place an order?
A: Contact us via email/phone for a quote, then confirm with a PO.