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CKWB-12 Primary And Secondary Integrated Pole Mounted Circuit Breaker
CKWB-12 Primary And Secondary Integrated Pole Mounted Circuit Breaker
Specifications
Rated Short-Time Withstand Current (4s) :
20kA
Power Frequency Withstand Voltage (1min) :
42kV
Brand Name :
EUE Power
Rated Peak Withstand Current :
50kA
Max./Min. Closing/Opening/Motor Operating Voltage :
AC/DC220/24V
Packaging Details :
Different packaging methods are adopted according to different modes of transportation
Lightning Impulse Withstand Voltage :
75kV
Rated Voltage :
12kV
Mechanical Life :
10000 operations
Resistance of Each Conductive Circuit :
130μΩ
Rated Short-Circuit Breaking Current :
20kA
Rated Power of Energy-Storage Motor :
≤40W
Rated Frequency :
50Hz
Rated Current :
630A
Payment Terms :
L/C,T/T,DDP,DDU
Place of Origin :
China
Price :
Negotiable
Product Name :
Primary And Secondary Integrated Pole-Mounted Circuit Breaker
Description

CKWB-12 Primary And Secondary Integrated Pole-Mounted Circuit Breaker

The CKWB-12 is a high-performance, three-phase 12kV circuit breaker utilizing advanced vacuum arc-quenching technology and SF₆ gas insulation. Engineered for reliability, it features an optimized main circuit for minimal temperature rise and a robust spring operating mechanism.

Key Advantages

  • Superior Airtightness: Enhanced sealing of inlet and outlet bushings prevents SF₆ leakage.
  • Environmental Immunity: Designed to withstand harsh external conditions.
  • High Reliability: Spring operating mechanism ensures stable, long-term performance.
  • Optimized Design: Low contact resistance for efficient energy distribution.

Overview

The CKWB-12 Primary And Secondary Integrated Pole-Mounted Circuit Breaker features vacuum arc-quenching technology with SF₆ gas insulation. It is designed as a three-phase, 50Hz system rated for 12kV. The sealing performance of the inlet and outlet bushings has been significantly improved, ensuring excellent overall airtightness. This effectively prevents any internal SF₆ gas leakage and guarantees immunity to external environmental factors. Additionally, the spring operating mechanism delivers exceptional reliability and stability, while the main circuit is optimized for low contact resistance and minimal temperature rise.

Application

Primarily used for making and breaking load curren and interrupting short-circuit current in power systems. Suitable for protection and control in substations, industrial and mining enterprises, and rural distribution networks, especially for applications requiring frequent switching operations.

The unit fully complies with State Grid's primary-secondary integration technical requirements, as well as China Southern Power Grid's technical specifications for 10kV automated vacuum pole-mounted circuit breaker equipment.

Performance Advantages

  • Comprehensive Protection: Offers over current and zero-sequence protection, with the advanced capability to accurately distinguish between internal and external faults.

  • Flexible Installation and Operation: The product can be conveniently and flexibly installed either on a pole or on a pedestal. It features a motor-operated spring mechanism and supports electric tripping and closing.

  • Reliable Operating Mechanism: Transmission and multi-stage trip system for reliable operation; excellent interruption performance, with the capability to interrupt a 20 kA short circuit current up to 30 times.
  • Exceptional External Insulation: The unique silicone rubber bushing structure for incoming and outgoing terminals provides sufficient insulation distance between bushings, ensuring safe and reliable operation.
  • Reliable Sealing Performance: Utilizes proven sealing technology to fully encapsulate the main circuit, secondary components, and operating mechanism in SF6 gas (at zero gauge pressure), ensuring exceptional long-term sealing reliability.
  • Flexible Installation Options: The product supports both pole-mounted and pedestal-mounted installation methods, providing adaptable deployment solutions.
  • Advanced Communication Capabilities: Featuring an aviation socket beneath the operating mechanism for integration with intelligent control systems, it enables full remote functionality, including telecontrol, teleindication, telemetering, and teleadjustment.


Product Photos

CKWB-12 Primary And Secondary Integrated Pole Mounted Circuit Breaker

Technical Parameters

Parameter Unit Value
Rated Voltage kV 12
Rated Frequency Hz 50
Rated Current A 630
Rated Short‑Time Withstand Current (4s) kA 20
Rated Peak Withstand Current kA 50
Rated Short‑Circuit Making Current (Peak) kA 50
Rated Short‑Circuit Breaking Current kA 20
Number of Rated Short‑Circuit Breaking Current Interruptions Operations 30
Mechanical Life Operations 10000
Power Frequency Withstand Voltage (1min) kV 42/48 (Isolating Contact Gap)
Lightning Impulse Withstand Voltage kV 75/85
Contact Gap mm 9±1
Contact Over‑travel mm 3
Average Opening Speed m/s 1.2±0.2
Average Closing Speed m/s 0.8‑1.2
Contact Closing Bounce Time ms ≤2
3‑Phase Opening Synchronism ms ≤2
Resistance of Each Conductive Circuit μΩ 130 (≤200 with Isolator)
Closing Time ms 20~60
Opening Time ms 18~60
Rated Power of Energy‑Storage Motor W ≤40
Phase‑to‑Phase Center Distance Inside Cabinet mm 135±2
Phase‑to‑Phase Center Distance Outside Cabinet mm 280±3
Max./Min. Closing Operating Voltage V AC/DC220/24
Max./Min. Opening Operating Voltage V AC/DC220/24
Max./Min. Motor Operating Voltage V AC/DC220/24
Weight kg 180
Standard SF6 - GB/T1984
Gas Gauge Pressure Mpa "0"


About EUE Power – Your Trusted Power Distribution Equipment Manufacturer

EUE Power is a China-based manufacturer specializing in power distribution equipment and energy storage products for global industrial, commercial, and renewable energy applications.

With professional manufacturing capabilities and OEM/ODM support, EUE Power supplies reliable power distribution products including distribution transformers, compact substations, switchgear, UPS systems, and battery energy storage systems.

Our factory combines engineering expertise, strict quality control, and flexible production capabilities to meet different market requirements worldwide.

Whether you are looking for a reliable distribution transformer supplier, compact substation manufacturer, switchgear supplier, or energy storage equipment partner, EUE Power provides dependable products and professional support.

Partner with EUE Power for:

  1. Stable manufacturing quality
  2. Customized OEM/ODM services
  3. Competitive factory pricing
  4. International export experience
  5. Professional technical support

EUE Power — Reliable Power Equipment Manufacturer for Global Markets.

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CKWB-12 Primary And Secondary Integrated Pole Mounted Circuit Breaker

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Product Detail
Rated Short-Time Withstand Current (4s) :
20kA
Power Frequency Withstand Voltage (1min) :
42kV
Brand Name :
EUE Power
Rated Peak Withstand Current :
50kA
Max./Min. Closing/Opening/Motor Operating Voltage :
AC/DC220/24V
Packaging Details :
Different packaging methods are adopted according to different modes of transportation
Contact Supplier
CKWB-12 Primary And Secondary Integrated Pole Mounted Circuit Breaker

East Union Energy (Shenzhen) Technology Co., Ltd.

Verified Supplier
1 Years
shenzhen
Since 11
Business Type :
Manufacturer, Exporter
Main Products :
Distribution Transformer, Instrument Transformer, Pad Mounted Transformer
Total Annual :
200000m²-200000m²
Employee Number :
15~20
Certification Level :
Verified Supplier
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