• Product
  • Suppliers
  • Manufacturers
  • Solutions
  • Free tools
  • Knowledges
  • Experts
  • Communities
Search


17.5 kV indoor vacuum circuit breaker Evolution that Empowers

  • 17.5 kV indoor vacuum circuit breaker Evolution that Empowers

Key attributes

Brand ROCKWILL
Model NO. 17.5 kV indoor vacuum circuit breaker Evolution that Empowers
Rated voltage 17.5kV
Rated normal current 1250A
Rated frequency 50/60Hz
Series VD4 evo
Description

Description

VD4 evo circuit breakers are used in power distribution systems for controlling and protecting cables, transformer and distribution substations, motors, transformers and capacitor banks. VD4 evo includes a range of sensors for a seamless transition from traditional to digitally connected medium voltage circuit breakers. The integrated sensors enable advanced monitoring and diagnostic features for real-time monitoring of thermal, mechanical, and electrical parameters, allowing remote asset management and thus reducing maintenance cost and contributing to reduced downtime.
VD4 evo is also available in standard configurations without sensors. The flexibility of the design enables future digital upgrades, including sensors, if required.

Features

  • Full monitoring and diagnostics (M&D) flexibility.
  • Mechanical chain and accessories anomalies detection.
  • Loose connections detection and circuit breaker contacts monitoring.
  • Advanced thermal checks & electrical life.
  • The most compact medium voltage circuit breaker selection for your application.
  • Third-party verified Environmental Product Declaration (EPD) for transparency of the environmental impact of the circuit breaker.
  • QR code for fast retrieval of online documentation.
  • Intuitive dashboard based on the Web browser-based HMI.

 Technical Characteristics

17.5 kV indoor  vacuum circuit breaker Evolution that Empowers

Scope

  • Withdrawable and fixed medium voltage circuit breakers for primary distribution.
  • The digital evolution of the IEC indoor vacuum circuit breaker VD4.
  • VD4 evo p150 17.5 kV, up to 1250 A, 40 kA withdrawable (for UniGear ZS1 650 mm) and fixed.
  • More ratings to be released soon.

Benefits

  • New intelligence reduces the risk of power outages by 30 percent and increases operation and maintenance efficiencies by as much as 60 percent.
  • Enables reduced operating expenses (OpEx) by reducing outages and maintenance cost.
  • The most compact 17 kV 40 kA breaker, enabling 15 percent of space saving.
  • VD4 evo can be directly integrated with ABB’s ZEE600 SCADA solution enabling a direct cloud connection, or alternatively integrated with a third-party SCADA and gateway.

Know your supplier

Online store
On-time delivery rate
Response time
100.0%
≤4h
Company overview
Workplace: 108000m² Total staff: 700+ Highest Annual Export(usD): 150000000
Services
Business Type: Design/Manufacture/Sales
Main Categories: High Voltage Electrical Apparatus/Electric transformer
Related Products
Related Knowledges
  • A Brief Discussion on the Issues of Converting Reclosers into Outdoor Vacuum Circuit Breakers for Use
    The rural power grid transformation plays an important role in reducing rural electricity tariffs and accelerating rural economic development. Recently, the author participated in the design of several small-scale rural power grid transformation projects or conventional substations. In rural power grid substations, conventional 10kV systems mostly adopt 10kV outdoor auto circuit vacuum reclosers.To save investment, we adopted a scheme in the transformation that removes the control unit of the 10
    12/12/2025
  • A Brief Analysis of Automatic Circuit Recloser in Distribution Feeder Automation
    An Automatic Circuit Recloser is a high-voltage switching device with built-in control (it inherently possesses fault current detection, operation sequence control, and execution functions without requiring additional relay protection or operating devices) and protective capabilities. It can automatically detect the current and voltage in its circuit, automatically interrupt fault currents according to inverse-time protection characteristics during faults, and perform multiple reclosures accordi
    12/12/2025
  • Recloser Controllers: Key to Smart Grid Reliability
    Lightning strikes, fallen tree branches, and even Mylar balloons are enough to interrupt current flow on power lines. That’s why utility companies prevent outages by equipping their overhead distribution systems with reliable recloser controllers.In any smart grid environment, recloser controllers play a critical role in detecting and interrupting transient faults. Although many short circuits on overhead lines can resolve themselves, reclosers help improve service continuity by automatically re
    12/11/2025
  • Application of Fault Diagnosis Technology for 15kV Outdoor Vacuum Automatic Circuit Reclosers
    According to statistics, the vast majority of faults on overhead power lines are transient, with permanent faults accounting for less than 10%. Currently, medium-voltage (MV) distribution networks commonly employ 15 kV outdoor vacuum automatic circuit reclosers in coordination with sectionalizers. This setup enables rapid restoration of power supply after transient faults and isolates faulty line segments in the event of permanent faults. Therefore, it is essential to monitor the operational sta
    12/11/2025
  • Application of 10kV Reclosers and Sectionalizers in Rural Distribution Networks
    1 Current Grid StatusWith the continuous deepening of rural power grid transformation, the health level of rural grid equipment is constantly improving, and power supply reliability basically meets user needs. However, regarding the current grid status, due to funding constraints, ring networks have not been implemented, dual power supplies are unavailable, and lines adopt a single radial tree-like power supply method. This resembles a tree trunk with many branches—meaning the lines have numerou
    12/11/2025
  • What’s the Difference Between a Recloser and a Pole-Mounted Breaker?
    Many people have asked me: “What’s the difference between a recloser and a pole-mounted circuit breaker?” It’s hard to explain in one sentence, so I’ve written this article to clarify. In fact, reclosers and pole-mounted circuit breakers serve very similar purposes—they are both used for control, protection, and monitoring on outdoor overhead distribution lines. However, there are significant differences in the details. Let’s examine them one by one.1.Different MarketsThis may be the biggest dis
    11/19/2025
Send inquiry
+86
Click to upload file
Download
Get the IEE Business Application
Use the IEE-Business app to find equipment, obtain solutions, connect with experts, and participate in industry collaboration anytime, anywhere—fully supporting the development of your power projects and business.