Retrofit Switchgear Solutions
-- Steady & Reliable Manufacturer --
Product Overview
Retrofit Switchgear Solutions provide a fast, cost-effective way to modernize aging electrical infrastructure without the massive expense and disruption of a complete substation replacement. At DSJ Electrical, we specialize in "Internal Upgrades," where we replace obsolete or unreliable circuit breakers with modern Vacuum (VCB) or SF6 technology while retaining the existing enclosure and busbar structure. Our retrofit service includes custom-engineered "interface cradles" that allow a new breaker to "roll-in" to an old panel from any manufacturer. We also specialize in digital retrofits, replacing antiquated analog relays with modern IEC 61850 compliant protection devices. By choosing a DSJ Retrofit, you extend the life of your asset by 20+ years, improve safety through modern arc-quenching, and gain the smart-grid capabilities required for the modern era—all at a fraction of the cost of new equipment.
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Low-Voltage Switchgear
CE Certified Main Distribution Board Construction Site Switchgear/Switchboard
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Medium-Voltage Switchgear
KYN28A-12 CE/UL Certified Metal Clad Switchgear Medium Voltage Switchgear/Switchboard
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Medium-Voltage Switchgear
KYN61-40.5 CE/UL Certified Metal Clad Switchgear Medium Voltage Switchgear/Switchboard
Electrical Partner
At DSJ, we transform complexity into reliability. With 42+ years of expertise in power distribution systems, our turnkey service integrates every phase – from regulatory compliance to final commissioning – ensuring seamless project execution for global clients. Whether it is the initial design or the final handover, we will strictly control every detail to ensure that the final delivered products perfectly meet your expectations. With us, you can focus on your core business with peace of mind, knowing that your project is in the hands of professional and reliable partners.
Introduction
The Retrofit Switchgear Solutions line from DSJ Electrical Co., Ltd is about "Renewing the Power Within." We recognize that many facilities have robust metal enclosures but internal components that have reached the end of their safe life. Our introduction of this service focuses on "Compatibility Engineering" and "Operational Sustainability." Every retrofit project begins with a 3D laser scan of your existing site to ensure a perfect mechanical fit. Our manufacturing process involves building custom busbar adapters and wiring looms that "Plug-and-Play" into your legacy system.
Innovation at DSJ involves our "Fast-Track Retrofit" program. We can often perform a full breaker swap in less than 4 hours, significantly reducing the downtime required for your facility. We provide a complete "Safety Upgrade," adding modern interlocks and arc-flash sensors that were not available when the original gear was installed. At DSJ, we provide the full engineering documentation for the modified system, including updated schematics and type-test verification of the new breaker-enclosure combination. Choosing a DSJ retrofit means choosing to modernize responsibly—saving money, reducing waste, and upgrading your grid to the highest modern safety standards.
Applications
- Aging Utilities: Upgrading 1970s-90s era substations to modern standards.
- Industrial Plants: Replacing high-maintenance oil breakers with VCBs.
- Commercial Buildings: Modernizing main LV boards without civil work.
- Steel Mills & Mines: Improving fault-clearing speed in heavy-duty sites.
- Data Centers: Enhancing protection speed and reliability for older hubs.
- Hospitals: Upgrading protection systems during scheduled outages.
Specifications
| Service Type | Retrofit Specification |
|---|---|
| Replacement Medium | Vacuum (VCB) / SF6 / Solid |
| Mechanical Fit | Custom "Roll-In" Interface Trucks |
| Protection Upgrade | Digital Microprocessor Relays |
| Downtime | Typically 2 to 6 hours per unit |
| Voltage Compatibility | LV up to 40.5kV |
| Life Extension | Additional 20 to 25 Years |
| Standards Met | IEC 62271-1 / IEC 61439 |
Why Choose Us
DSJ Electrical is a "Compatibility Specialist." We have a vast library of designs for legacy gear from major global brands, ensuring we don't "guess" at the fit. Our precision-engineered retrofit kits provide a seamless upgrade path that turns your aging liability into a modern, high-performance asset.
- Q: Can you retrofit gear from other manufacturers?
- A: Yes, we provide retrofit kits for almost all major legacy brands (ABB, GE, Westinghouse, etc.).
- Q: Do I need to change my cables?
- A: No, the primary advantage of a retrofit is that your existing power cables remain in place.
Advantages
- Significant Cost Savings: 40% to 60% cheaper than full replacement.
- Minimal Disruption: No need to cut cables or perform civil works.
- Enhanced Safety: Modern arc-containment and faster trip times.
- Smart Grid Ready: Gain remote monitoring and communications.
- Environmental Sustainability: Reduces landfill waste by reusing enclosures.
- Improved Reliability: Modern components eliminate "nuisance trips."
Standards & Certifications
Our retrofit solutions are engineered to meet IEC standards. We perform on-site dielectric and contact resistance tests to verify the integrity of the updated system. We are ISO 9001 certified, and our retrofit designs are based on proven type-tested components.
Payment & Shipping
Retrofit kits are shipped in compact, high-protection crates. We offer "Turnkey Installation" services globally, where our engineers travel to your site to perform the upgrade. Lead times for custom retrofit kits are 8-10 weeks.
DSJ Story
about DSJ
Building Power, Building Trust
Founded in 1983, DSJ is a leader in China's power distribution equipment. Headquartered in Beijing as the top-selling enterprise, we integrate manufacturing with trade and maintain full in-house capabilities in R&D, production, and sales. This enables efficient fulfillment of custom orders with industry-leading speed.
As a producer of distribution system, transformer, generator and photovoltaic products exceeding Chinese/international standards, DSJ supplies medium/low-voltage electrical equipment, and PV systems. For over four decades, we have delivered high-safety electrical solutions globally to public infrastructure, corporations, and households – achieving the industry's lowest return rate.
Committed to "meeting diverse needs through quality", DSJ leverages expert teams to provide one-stop services: pre-sales consultation & customization, flexible logistics/payment options, and reliable maintenance – ensuring seamless producer-maintainer-customer collaboration.
+86 18513032986 
FLC Center, Chaoyang District, Beijing, China