12KV Outdoor Pole Mounted Circuit Breaker

Model:ZW20-12F

Anqiang Power is a China manufacturer of 12kV outdoor pole mounted circuit breakers. This outdoor pole-mounted power distribution equipment has a rated voltage of 12kV and operates on three-phase AC 50Hz. It features excellent reclosing capabilities when used with a controller, meeting the requirements of distribution automation systems. It is primarily used for switching on and off load currents and short-circuit currents in 10kV power systems, and is used in substations and industrial and mining enterprise distribution systems.

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Product Description

Anqiang Power presents the ZW20-12F series, a next-generation 12KV outdoor pole mounted circuit breaker designed for three-phase AC 50Hz overhead distribution systems. Engineered with advanced vacuum interruption technology and SF6 gas-sealed enclosure (zero gauge pressure design), this breaker seamlessly integrates the functions of a vacuum circuit breaker, recloser, and sectionalizer. Whether you operate a rural electrification network, an industrial park distribution system, or a smart grid automation project, the ZW20-12F delivers reliable fault protection and remote control capabilities.

ZW20-12F vs Traditional Outdoor Breaker

ZW20-12F Outdoor Breaker

Advanced Pole-Mounted Design

✓ SF6 gas zero gauge pressure – Safe & eco-friendly
✓ Aviation connector for secondary wiring – Easy controller integration
✓ Maintenance-free sealed structure
✓ Built for distribution automation (DA) systems

Traditional Breaker

Conventional Oil/SF6 Breaker

✓ Requires periodic maintenance
✓ Higher gas pressure operation
✓ Bulky control wiring
✓ Limited reclosing functionality

📍 Application & Selection Guide: Real-world scenarios

✅ Scenario 1: 10kV Rural Electrification Network (Overhead Lines)
Use ZW20-12F as the main protection device on branch lines. With automatic recloser controller, it clears temporary faults and reduces outage time. The aviation connector simplifies field wiring.

✅ Scenario 2: Industrial Park Distribution System
The ZW20-12F handles 630/1000A load current and breaks short-circuit faults up to 25kA. Its maintenance-free design reduces operational costs for factory power distribution.

✅ Scenario 3: Smart Grid Automation (Feeder Automation)
When paired with a feeder automation controller, the ZW20-12F supports remote monitoring, fault isolation, and service restoration — ideal for modern distribution automation projects.

📋 Technical Specifications – Type tested (GB/T 1984 / IEC 62271-100)

Project	Parameter value
Rated voltage	12kV
Rated frequency	50Hz
Rated current	630/1000 A
Rated short-circuit breaking current	20/25 kA
Rated peak withstand current	50/63 kA
Rated short-time withstand current	20/25 kA
Rated short-circuit making current	50/63 kA
Rated operating sequence	Open - 0.3 seconds - Close - 180 seconds - Open - Close
Mechanical life	10,000 times
Rated current breaking cycles	10,000 times
Rated short-circuit breaking capacity	30 times
SF6 gas rated pressure	0Mpa

📐 Product Dimensions & Component Breakdown

ZW20-12F outdoor pole mounted circuit breaker dimensions

ZW20-12F Mechanical Layout – 1. Vacuum interrupter, 2. Spring operating mechanism, 3. Current transformers, 4. SF6 sealed enclosure, 5. Aviation connector (secondary control), 6. Manual operating handle, 7. Grounding terminal, 8. Pole mounting bracket, 9. Arcing chamber.

The ZW20-12F features a compact, lightweight design that mounts directly on concrete poles. The aviation connector simplifies field wiring between the breaker and intelligent controller, significantly reducing installation time compared to traditional terminal blocks.

🏭 Why Anqiang Power? – Your reliable partner for outdoor circuit breakers

Factory direct – No middleman, better price and lead time (15-25 days).
Type tested – GB/T 1984, IEC 62271-100, fully certified.
Customization ready – Controller integration, special current ratings, OEM branding.
Global references – Supplied to Southeast Asia, Middle East, Africa, South America.

📌 Real project references:

✅ Indonesia – 500+ units of ZW20-12F deployed in rural electrification project across Java and Sumatra (2023–2025).

✅ Philippines – 300 sets of ZW20-12F with automatic recloser controllers supplied to NGCP for 10kV feeder automation upgrade.

Frequently Asked Questions

Q1: What is the difference between ZW20-12F and traditional outdoor breakers?
A: ZW20-12F features SF6 gas zero gauge pressure design (safe & eco-friendly), an aviation connector for easy controller integration, and a maintenance-free sealed structure. Traditional breakers require periodic maintenance and have more complex wiring.

Q2: Can this breaker be used with an automatic recloser controller?
A: Yes. The ZW20-12F is designed for distribution automation. When paired with a recloser controller, it supports automatic fault clearing and multiple reclosing sequences (Open - 0.3s - Close - 180s - Open - Close).

Q3: What is the mechanical life of the ZW20-12F?
A: 10,000 mechanical operations under normal service conditions, thanks to the robust spring operating mechanism and sealed vacuum interrupter.

Q4: Is the breaker maintenance-free? What does that mean?
A: Yes. The SF6 gas is sealed at zero gauge pressure, eliminating the need for periodic gas refilling. The vacuum interrupter requires no contact maintenance. This significantly reduces operational costs.

Q5: Do you provide OEM/ODM service?
A: Absolutely. We offer custom branding, specific current rating configurations, and controller integration. Pre-production samples are available with a lead time of 7-10 days.

📩 Need a customized solution or price list?

Tell us your rated current, controller requirements, and target quantity. We will reply within 24 hours.

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Email: sales@anqiangpower.com | WhatsApp:8615057324888

Hot Tags: 12KV Outdoor Pole Mounted Circuit Breaker, Outdoor Electrical Circuit Breaker, High Voltage Circuit Breaker Manufacturer

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Contact Info

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Address

Jinlu Industrial Zone, Beibaixiang Town, Yueqing City, Wenzhou City, Zhejiang Province, China
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Tel
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E-mail

john@chaqele.com

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