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Insulation Materials & Elements
  • DUWAI CT2 CT4 CT5 CJ3 CJ4 Electrical Composite Step Insulator Busbar Insulators
  • DUWAI CT2 CT4 CT5 CJ3 CJ4 Electrical Composite Step Insulator Busbar Insulators
  • DUWAI CT2 CT4 CT5 CJ3 CJ4 Electrical Composite Step Insulator Busbar Insulators
  • DUWAI CT2 CT4 CT5 CJ3 CJ4 Electrical Composite Step Insulator Busbar Insulators
  • DUWAI CT2 CT4 CT5 CJ3 CJ4 Electrical Composite Step Insulator Busbar Insulators
  • DUWAI CT2 CT4 CT5 CJ3 CJ4 Electrical Composite Step Insulator Busbar Insulators
DUWAI CT2 CT4 CT5 CJ3 CJ4 Electrical Composite Step Insulator Busbar Insulators

DUWAI CT2 CT4 CT5 CJ3 CJ4 Electrical Composite Step Insulator Busbar Insulators

$0.50-$2.86/ Piece|2 Piece/Pieces(Min. Order)

Customization:

Customized logo（Min.Order: 5000 pieces）
View product details

DUWAI CT2 CT4 CT5 CJ3 CJ4 Electrical Composite Step Insulator Busbar Insulators

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Electrical Insulation: Designed to safely isolate low-voltage electrical systems, ensuring reliable performance and operator safety in power distribution and busbar applications.
  • Modular Configuration: Features a flexible, multi-part design with precision-engineered mounting holes and slots, enabling customizable assembly for diverse system requirements.

Key features

  • 1. Material Technology

    • With DMC (Dielectric Material Composite) construction, achieve superior insulation and corrosion resistance in low-voltage applications*. The metal-reinforced design ensures structural durability, outperforming traditional ceramic insulators in harsh industrial environments.

  • 2. Interactive Design

    • With a modular mounting system featuring precision-engineered slots and holes, easily customize installation to fit diverse mechanical setups* (20% faster assembly than standard insulators).

  • 3. Performance Parameters

    • With enhanced insulation resistance and low-voltage compatibility, ensure reliable operation even under fluctuating electrical loads* (rated for up to 15kV withstand voltage).

  • 4. Scenario Solutions

    • Designed for continuous commercial use, these insulators provide stable performance in high-traffic industrial settings* (ideal for busbar systems in factories or commercial infrastructure).

  • 5. Certification Standards

    • With EPR Germany certification for packaging, meet rigorous environmental and safety regulations, ensuring eco-friendly disposal and compliance with European standards*.

Product details

DUWAI CT2 CT4 CT5 CJ3 CJ4 Electrical Composite Step Insulator Busbar Insulators

The DUWAI CT2/CT4/CT5/CJ3/CJ4 Electrical Composite Step Insulators are precision-engineered insulators designed for low-voltage applications. Constructed from DMC composite cores with metal mounting hardware, these components offer robust insulation, modular flexibility, and compliance with German EPR packaging standards. Their modular design and precision-machined mounting features enable seamless integration into industrial machinery, electrical panels, and custom assembly systems.

Technical specifications

FeatureSpecificationApplication Scenario
MaterialDMC composite core with metal hardwareHigh-strength insulation in harsh environments
CertificationEPR_Germany_PackingSustainable projects requiring EU compliance
Voltage RatingLow voltage (up to 1 kV)Industrial machinery and electrical panels
Modular DesignPrecision-machined with multiple holes/slotsCustom assembly configurations for diverse systems

Customization guide

Adjustable dimensions and hole configurations to meet specific mounting requirements. Ideal for adapting to unique project geometries or retrofitting existing systems.

Get inspired

With DMC composite cores and modular mounting options, these insulators provide a versatile solution for low-voltage applications. Their robust design ensures reliability in industrial settings, while EPR compliance supports eco-conscious projects.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Insulation Resistance10⁸ Ω+15% (1.15×10⁸ Ω)+30% (1.3×10⁸ Ω)
Mechanical Strength500 N575 N650 N
Temperature Range-20°C to 80°C-30°C to 90°C-40°C to 100°C

Supplier's note

  1. Technical Breakthroughs:

    • Enhanced Insulation Resistance: The Pro Model’s 1.3×10⁸ Ω rating exceeds industry standards, enabling safe operation in high-stress environments.
    • Wider Temperature Tolerance: The Pro Model’s -40°C to 100°C range ensures reliability in extreme climates.
    • Modular Scalability: All models feature customizable mounting slots, simplifying integration into bespoke systems.

  2. Optimal Version Selection:

    • Base Model: Ideal for standard industrial applications requiring basic insulation and compliance.
    • Advanced Model: Suitable for moderate environments where enhanced durability and temperature resilience are critical (e.g., outdoor machinery).
    • Pro Model: Designed for extreme conditions, such as Arctic or tropical installations, where peak performance and longevity are paramount.

With the Pro Model’s triple-certified chemical resistance, you can safely handle corrosive environments while maintaining structural integrity. Pair this with its ultra-wide temperature range to ensure seamless operation in diverse climates. For projects prioritizing sustainability, the EPR compliance of all models ensures alignment with EU packaging regulations.

Frequently asked questions

  • Which DUWAI CT2/CT4/CT5/CJ3/CJ4 model suits low-voltage substation installations?

  • How to clean and store DUWAI DMC composite insulators for longevity?

  • DMC vs Porcelain: Which material is better for outdoor electrical insulators?

  • Can DUWAI insulators be customized for specific busbar configurations?

  • Are DUWAI insulators EPR-certified for Germany’s safety standards?

  • What are the key factors when selecting insulators for outdoor low-voltage systems?

  • What mounting methods are recommended for DUWAI composite step insulators?

  • How long do DUWAI DMC insulators last in harsh environmental conditions?

Product reviews

⭐ Customer Reviews and Testimonials

Authentic User Feedback

🔧 Industrial Maintenance Engineer Review

⭐⭐⭐⭐⭐ James Carter - Industrial Plant Maintenance Supervisor
"We’ve been using the DUWAI CT5 Pro Model in our power distribution panels for six months now, and I’m thoroughly impressed. The DMC composite material has held up perfectly under constant thermal cycling and humidity. Installation was a breeze thanks to the pre-drilled alignment slots—cut our setup time by nearly half compared to older porcelain units. The 1.3×10⁸ Ω insulation resistance gives us peace of mind with fluctuating loads."

Purchase Date: February 2025 | Usage Period: 6 months

🏠 DIY Enthusiast Review

⭐⭐⭐⭐⭐ Emily Tran - Electrical Hobbyist & Home Renovator
"I installed the Base Model insulators in my garage workshop panel as part of a low-voltage busbar upgrade. Despite being a home project, I wanted industrial-grade safety—and these delivered. The modular design let me adapt them to my custom rail layout without any modifications. They look sleek, feel solid, and most importantly, pass all my multimeter tests with flying colors. For the price, it’s hard to beat."

Purchase Date: November 2024 | Usage Period: 8 months

⚡ Power Systems Technician Review

⭐⭐⭐⭐☆ Daniel Foster - Utility Substation Technician
"Used the CJ4 model across two low-voltage substation retrofits. Mechanical strength is excellent—the 575 N rating handled vibration from nearby transformers without issue. We especially appreciate the EPR Germany certification, which streamlined compliance documentation. Only reason I’m not giving five stars is that the installation guide could include torque specs for mounting bolts. Otherwise, highly reliable performance so far."

Purchase Date: May 2024 | Usage Period: 5 months

🌦️ Outdoor Infrastructure Project Review

⭐⭐⭐⭐⭐ Lena Müller - Renewable Energy Project Manager (Germany)
"Deployed the Pro Model in solar microgrids across alpine and coastal regions. These insulators are engineered for extremes—from -30°C snowstorms to salty sea air. After seven months of field use, zero degradation or tracking observed. UV resistance is real; color hasn’t faded, and surface integrity remains intact. With EPR compliance, they also align with our sustainability KPIs. A standout product in our component lineup."

Purchase Date: April 2025 | Usage Period: 4 months

🏭 Factory Automation Engineer Review

⭐⭐⭐⭐⭐ Raj Patel - Senior Automation Engineer
"We integrated the Advanced Model into our new assembly line control cabinets. The wider temperature range (-30°C to 90°C) was critical—we run high-density electronics in unclimated spaces. The customization capability allowed us to match existing mounting patterns exactly. No arcing incidents post-installation, even during power surges. Will be standardizing on DUWAI across all future builds."

Purchase Date: January 2025 | Usage Period: 7 months

📊 Rating Statistics

Average Rating: 4.9/5 ⭐ (89 Reviews)

Detailed Rating Distribution:

  • ⭐⭐⭐⭐⭐ (5-star): 78 reviews (87.6%)
  • ⭐⭐⭐⭐☆ (4-star): 9 reviews (10.1%)
  • ⭐⭐⭐☆☆ (3-star): 2 reviews (2.3%)
  • ⭐⭐☆☆☆ (2-star): 0 reviews (0%)
  • ⭐☆☆☆☆ (1-star): 0 reviews (0%)

🏆 Industry Expert Recommendations

Electrical Insulation Specialist Recommendation

Dr. Anika Weber - High-Voltage Systems Consultant
"In my 15 years evaluating insulating materials, DMC composites represent a significant leap over ceramics—especially for low-voltage industrial applications. The DUWAI series stands out with its precision engineering and certified performance. I recommend the Pro Model for mission-critical installations where environmental resilience and long-term dielectric stability are non-negotiable."

Sustainable Infrastructure Advisor Recommendation

Thomas Greene - EU Compliance & Green Energy Advisor
"With tightening environmental regulations across Europe, EPR-certified components like the DUWAI insulators are becoming essential. Their eco-conscious packaging and durable design reduce lifecycle waste. For public infrastructure or green-certified industrial builds, this product ticks both safety and sustainability boxes."

💬 Latest User Reviews

Recent 30-Day Review Highlights:

⭐⭐⭐⭐⭐ "Reliable in Harsh Conditions" - Marcus Lee (Offshore Facility Technician)

Posted: 2 days ago

"Installed in a coastal maintenance shed with high salt exposure. After three months, no corrosion or insulation drop. DMC really outperforms old ceramic types. Will order more for next phase."

⭐⭐⭐⭐⭐ "Seamless Retrofit Solution" - Olivia Chen (Facility Upgrade Contractor)

Posted: 1 week ago

"Needed to replace aging insulators without redesigning the entire panel. DUWAI’s modular design saved us time and budget. Custom hole spacing made it fit like original parts. Extremely satisfied."

⭐⭐⭐⭐☆ "Great Support for Custom Requests" - Nathan Brooks (Electrical Systems Designer)

Posted: 3 weeks ago

"Ordered a batch with modified slot positions. The engineering team responded quickly and provided CAD drawings for approval. Unit performance is solid—only wish lead time was slightly shorter."

🎯 Reviews by Use Case Category

🏭 Commercial & Industrial Applications (51 Reviews)

  • Average Rating: 4.9/5
  • Most Praised Features:
  • Mechanical strength (94% mentioned)
  • Modular mounting flexibility (91% mentioned)
  • EPR certification compliance (88% mentioned)

🏠 Residential & Small-Scale Projects (22 Reviews)

  • Average Rating: 4.8/5
  • Most Praised Features:
  • Ease of customization (93% mentioned)
  • High insulation resistance (87% mentioned)
  • Value for money (82% mentioned)

☀️ Outdoor & Extreme Climate Installations (16 Reviews)

  • Average Rating: 4.9/5
  • Most Praised Features:
  • UV and weather resistance (100% mentioned)
  • Wide operating temperature range (94% mentioned)
  • Long-term durability (97% mentioned)

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