Zw32-12f Outdoor Vacuum Circuit Breaker with Fault Detection and Communication
Product Details
| Customization: | Available |
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| Breaking Capacity: | Outdoor Power Distribution |
| Operation: | Electric Type |
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| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
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| Refund policy: | Claim a refund if your order doesn't ship, is missing, or arrives with product issues. |
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Basic Info.
- 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, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection), RCCB
- Certification
- VDE, ISO9001-2000
- Transport Package
- Plywood Case Packing
- Specification
- Rated Voltage: 12kV, Frequency: 50Hz
- Trademark
- CHKB
- Origin
- Wenzhou, China
- HS Code
- 8504403090
- Production Capacity
- 100000
Packaging & Delivery
- Package Size
- 400.00cm * 400.00cm * 300.00cm
- Package Gross Weight
- 100.000kg
Product Description
ZW32-12F Outdoor High Voltage Intelligent Demarcation Vacuum Circuit Breaker
The ZW32-12F Outdoor High Voltage Intelligent Demarcation Vacuum Circuit Breaker, also known as a "Watchdog," is a specialized protective device designed for 12kV overhead distribution networks. Its primary purpose is to prevent widespread power outages on the main feeder line caused by faults occurring within a user's branch line or at the end user's installation. By automatically isolating localized faults (such as overcurrent, short-circuit, or single-phase ground faults) at the responsibility demarcation point, it ensures continuous power supply to users in non-faulty sections of the network.

Applications
This circuit breaker is ideally installed at the responsibility demarcation point, which is the legal and operational boundary between the utility's distribution line and the user's installation.
User Incoming Line Point: Installed at the T-connection or terminal point where a user taps off the main 12kV distribution line.
Branch Line Protection: Can also be applied on branch line connections that meet the technical requirements.
Key Benefit: Avoids cascade tripping of trouble-free lines, protects the safe operation of the main grid, and shortens outage times
Branch Line Protection: Can also be applied on branch line connections that meet the technical requirements.
Key Benefit: Avoids cascade tripping of trouble-free lines, protects the safe operation of the main grid, and shortens outage times
Normal Conditions of Use
Ambient Temperature: Not higher than +40°C, not lower than -15°C.
Relative Humidity: Daily average ≤ 95%, monthly average ≤ 90%.
Altitude: Does not exceed 1000 meters.
Seismic Intensity: Does not exceed 8 degrees.
Environment: Free of fire, explosion, severe pollution, chemical corrosion, and severe vibration.
Relative Humidity: Daily average ≤ 95%, monthly average ≤ 90%.
Altitude: Does not exceed 1000 meters.
Seismic Intensity: Does not exceed 8 degrees.
Environment: Free of fire, explosion, severe pollution, chemical corrosion, and severe vibration.
Specification



Technical Specifications
(Custom configurations available upon request.)
Project | Unit | Parameter | |||
Rated voltage | kV | 12 | |||
Rated Frequency | Hz | 50 | |||
Rated Current | A | 630, 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 Operating Sequence | O - 0.3s - CO - 180s - CO | ||||
Rated Number of Short-Circuit Breaks | times | 30 | |||
Power Frequency Withstand Voltage (1min) | Dry (phase-to-phase, earth/break) | kV | 42 / 48 | ||
Wet test (earth and external insulation) | kV | 34 | |||
Conductive Loop Resistance per Phase | μΩ | ≤ 80 (With Isolator: ≤ 150) | |||
Net Weight | kg | Without Isolator: 110 With Isolator: 130 | |||


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.
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

FAQ
Q: What’s the lead time for orders?
A: Standard models ship in 15–30 days; customized units require 30–45 days.
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.
A: Yes, we have partnered service centers in key regions.
Q: Can I request a customized bucket size?
A: Absolutely! We offer tailored attachments.
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.).
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.
A: Contact us via email/phone for a quote, then confirm with a PO.
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