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As a professional manufacturer of electrical equipment with ISO9001 certification, Jinhua Dika Electrical Equipment Co., Ltd. proudly presents our 40.5KV Indoor High Voltage Contact Box with Epoxy Resin Insulation. Engineered for reliability and safety in demanding power distribution applications, this product is a core component for secure and efficient electrical connections within indoor switchgear.
Our company, based in Zhejiang, China, combines rigorous quality control processes with extensive industry experience to deliver high-performance components trusted by clients globally. With an annual export value ranging between US$1 Million and US$1.5 Million, we serve a diverse international market, including North America, South America, Eastern Europe, Southeast Asia, Africa, and beyond.
This contact box is designed to provide a durable, maintenance-free solution for managing high voltage connections, ensuring operational continuity and protection for both equipment and personnel.
Key Features & Advantages:
- Superior Dielectric Strength: The cast epoxy resin insulation offers excellent electrical insulation properties, high mechanical strength, and resistance to tracking, ensuring long-term reliability even under thermal and electrical stress.
- Enhanced Safety: The fully insulated design minimizes the risk of flashover and accidental contact, providing a safer environment for maintenance personnel.
- Compact & Space-Saving Design: Optimized for indoor switchgear panels, its design allows for efficient use of panel space without compromising performance.
- Corrosion & Moisture Resistance: The epoxy resin is inherently resistant to moisture, chemicals, and corrosion, making it suitable for various indoor environments.
- Low Maintenance: The sealed, solid insulation system requires minimal upkeep over its service life, reducing total cost of ownership.
- Thermal Stability: Maintains stable insulation properties across a wide operating temperature range.
Technical Specifications:
| Parameter | Specification / Value |
| Rated Voltage | 40.5 kV |
| Power Frequency Withstand Voltage (1 min) | 95 kV |
| Lightning Impulse Withstand Voltage | 185 kV |
| Rated Current | 630A, 1250A, 2000A, 2500A, 3150A (Customizable) |
| Insulation Material | High-Grade Cast Epoxy Resin |
| Contact Material | Copper Alloy with Silver Plating |
| Operating Temperature Range | -25°C to +40°C (Ambient) |
| Protection Degree (Enclosure) | IP2X (Standard), higher grades available |
| Mounting Type | Fixed, for indoor switchgear assembly |
| Applicable Standards | IEC 62271-200, GB/T 11022 (Equivalent) |
Note: Specific dimensions, current ratings, and terminal configurations can be customized to match your switchgear design requirements.
Applications & Benefits for Your Business:
This contact box is an integral part of various high-voltage electrical systems:
- Metal-Enclosed Switchgear (RMU & AIS): Provides reliable and insulated connection points between circuit breakers, busbars, and cable terminations.
- Indoor Substations & Power Distribution Panels: Ensures safe power routing and segmentation within utility and industrial facilities.
- Generator Circuit Connections: Offers a robust interface for connecting generators to the switchgear.
- Railway Electrification Systems: Used in traction power supply installations requiring durable indoor connections.
By choosing our contact box, you gain:
- Increased System Uptime: High reliability reduces unexpected failures and maintenance downtime.
- Cost Savings: Long service life and minimal maintenance lower your operational expenditures.
- Design Flexibility: Customizable options allow for seamless integration into your existing or new switchgear.
- Compliance & Safety: Manufactured adhering to international standards, helping you meet regulatory requirements.
Frequently Asked Questions (FAQ)
Q1: Is this contact box suitable for outdoor installation?
A: No, this specific model is designed and rated for indoor use only. The epoxy resin insulation provides excellent protection, but the enclosure and mounting are intended for controlled indoor environments. For outdoor applications, please inquire about our specially designed outdoor-rated enclosures.
Q2: What are the standard current ratings available?
A: We typically offer standard ratings of 630A, 1250A, 2000A, 2500A, and 3150A. However, our manufacturing capability allows for customization to meet specific project requirements outside this range. Please provide your detailed specifications for a tailored solution.
Q3: How does the epoxy resin insulation compare to other insulation types?
A: Cast epoxy resin insulation offers several advantages: it is solid and void-free, providing uniform dielectric strength; it has high mechanical strength to withstand shock and vibration; it is resistant to moisture, tracking, and most chemicals; and it allows for complex, precise shapes that enable compact designs.
Q4: Can you provide custom dimensions or flange configurations?
A: Yes, as a manufacturer, we specialize in custom-engineered solutions. We can adapt the overall dimensions, bolt hole patterns, flange types, and terminal arrangements to match your specific switchgear layout and connection needs. Engineering drawings are requested for accurate customization.
Q5: What is the typical delivery time for standard and custom orders?
A: For standard models, lead time is generally 15-30 working days after order confirmation. For customized products, the timeline depends on the complexity of modifications but typically ranges from 30-45 working days. We provide estimated schedules with every quotation.
Q6: Do you provide test reports with the products?
A: Yes, we conduct routine tests (Routine Tests) on every unit, including power frequency withstand voltage and partial discharge tests. Type test reports are available upon request. Our ISO9001 quality management system ensures consistent testing procedures.
Q7: What are the main ports you ship from?
A: We primarily ship from major Chinese ports including Shanghai, Tianjin, Guangzhou, and Ningbo. This allows us to offer flexible logistics options and competitive shipping costs to our global customers in North America, Europe, Asia, and other regions.
Q8: Is the silver plating on the contacts standard?
A: Yes, silver plating on the copper alloy contacts is a standard feature. It ensures low contact resistance, excellent conductivity, resistance to oxidation, and reliable performance over the product's lifetime, even with frequent operation.
Choosing Jinhua Dika as your supplier means partnering with a dedicated manufacturer committed to quality and reliability. Our ISO9001 certification underpins every stage of production, from material selection to final testing. With an experienced team of 11-50 professionals and a proven track record of exporting to diverse markets worldwide, we understand the stringent requirements of the global power industry.
We invite you to leverage our expertise and manufacturing capability for your next project. Whether you need a standard component or a fully customized solution, our team is ready to provide the technical support and reliable delivery you require.
Contact us today to discuss your specifications, request a detailed quotation, or to learn more about how our 40.5KV Indoor High Voltage Contact Box can enhance the safety and efficiency of your electrical systems.
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