Customization:
With copper construction, ensure reliable conductivity and durability under high current loads (up to 500A).
With a modular design and hinged blue covers, customize configurations and access connections quickly.
Support currents up to 500A, enabling heavy-duty power distribution compared to standard 250A models.
Designed for industrial/commercial use, ensuring stable power distribution in high-demand environments.
Comply with RoHS, CE, and LVD standards, ensuring safety and environmental compliance for commercial installations.
The Power Distribution Terminal Block Connector Distribution Block UKK series offers robust, modular solutions for high-current power distribution systems. Designed with copper terminals and durable plastic housings, these blocks support conductor sizes from 11-20 AWG and accommodate 11-20 contacts, ensuring scalability for diverse applications. Certified to RoHS, CE, and LVD standards, they provide secure, compliant connections for industrial and commercial setups.
Feature | Specification | Application Scenario |
---|---|---|
Material | Copper terminals, durable plastic body | High-current industrial power systems |
Certifications | RoHS, CE, LVD | Compliance-driven commercial projects |
Conductor Size | 11-20 AWG | Versatile wire compatibility |
Current Ratings | 80A, 125A, 160A, 250A, 400A, 500A | Heavy-duty power distribution networks |
Contacts | 11-20 | Scalable connection needs |
Design | Modular, hinged blue translucent cover | Easy access and maintenance |
Adjustable current ratings (80A to 500A) and contact counts (11-20) allow customization to match specific power demands. The modular design enables seamless expansion for growing systems, while the hinged cover ensures quick access without compromising safety.
With copper terminals, you can achieve low-resistance power flow even under high loads. The translucent blue covers provide visibility for secure connections, while the modular setup simplifies installation in complex electrical systems.
Parameter | Base Model (80A-160A) | Advanced Model (250A) | Pro Model (400A-500A) |
---|---|---|---|
Max Current | 160A | +56% (250A) | +150% (500A)* |
Contacts | 11-15 | 16-20 | 16-20 (reinforced) |
Certifications | RoHS, CE | +LVD | +UL (optional) |
Technical Breakthroughs:
Version Selection Guidance:
*Pro Model’s 500A capacity outperforms standard industrial blocks by 20%.
Category | Usage Scenarios | Characteristics | Advantages | Disadvantages |
---|---|---|---|---|
High Current Handling | Industrial power systems, heavy machinery | Current Rating: 80A (Base) ▲▲▲ 500A (Advanced) (IEC 60947-7 compliant) | Handles extreme loads (e.g., 500A for large motors) | Higher cost for advanced tiers; requires robust installation infrastructure |
Material Composition | Harsh environments (chemical exposure) | Copper terminals & body (ASTM B117, 1000hrs salt spray resistance) | Corrosion-resistant and durable (outperforms plastic alternatives) | Heavier weight compared to lightweight materials |
Certification Compliance | Global installations (EU/US standards) | RoHS, CE, LVD compliance (Ensures environmental and safety standards) | Meets international regulations for export and compliance-driven projects | Compliance adds to manufacturing costs |
Modular Design | Flexible systems (data centers, factories) | Modular (IEC 61076-5 compatible) ▲▲ expandable via snap-fit connectors | Easy scalability and customization for evolving systems | Requires training for optimal configuration |
Contact Capacity | High-density wiring (server racks) | 11–20 contacts (IEC 60947-7 compliant) ▲▲ supports multi-wire configurations | Supports dense wiring without overcrowding | Limited to 20 contacts per block for extreme high-density needs |
Thermal Performance | High-temperature environments (foundries) | Operating range: -25°C to +70°C (IEC 60068-2-1 tested) ▲ 10°C above industry avg | Stable in extreme temperatures (e.g., industrial ovens) | Not rated for temperatures exceeding 70°C |
⭐⭐⭐⭐⭐ James Peterson - Industrial Maintenance Engineer
"We’ve been using the Pro Model (500A) in our manufacturing plant since February 2025, and I’m thoroughly impressed. The copper terminals show zero signs of overheating, even under continuous 480A load. The hinged blue covers make inspection and maintenance a breeze—no tools needed, and we can visually confirm all connections are secure. It’s clearly built to last."Purchase Date: February 2025 | Usage Period: 6 months
⭐⭐⭐⭐⭐ Linda Tran - Electrical Contractor
"Installed the Advanced Model (250A) in a mid-sized data center last November. The modular design allowed us to scale the system across two server racks seamlessly. With 20 contacts and full 11–20 AWG compatibility, it handled our multi-wire setup perfectly. Plus, having CE, RoHS, and LVD certifications made client approval a smooth process."Purchase Date: November 2024 | Usage Period: 8 months
⭐⭐⭐⭐☆ David Kim - Smart Home Integrator
"Used the Base Model (160A) for a high-end residential automation project in January 2025. Needed something reliable but compact for power distribution in a smart panel. The translucent blue cover is a small but smart touch—lets me check connections without opening it. Only reason it’s not 5 stars is that I wish the base model had UL certification as standard, not just optional."Purchase Date: January 2025 | Usage Period: 5 months
⭐⭐⭐⭐⭐ Maria Gonzalez - Operations Manager, Automotive Plant
"We replaced our old aluminum blocks with the UKK series 500A Pro Model in April 2025. The difference in performance is night and day. No more hot spots or voltage drops. The copper terminals handle our robotic assembly line loads with ease. And the fact that we can expand the system modularly means we’re ready for next year’s production upgrade without rewiring everything."Purchase Date: April 2025 | Usage Period: 3 months
⭐⭐⭐⭐☆ Tom Reynolds - Field Service Technician
"Been servicing HVAC and industrial systems for 12 years, and these are the most user-friendly terminal blocks I’ve worked with. The tool-free hinged cover saves so much time during routine checks. We’ve used the 250A and 400A models across multiple sites since June 2024. Durable, well-labeled, and the plastic housing holds up even in dusty environments. Only downside? The higher amp models are a bit bulky, but that’s expected at this capacity."Purchase Date: June 2024 | Usage Period: 7 months
Average Rating: 4.8/5 ⭐ (89 Reviews)
Mark Ellison, PE - Senior Power Systems Engineer
"For industrial power distribution, the UKK series stands out due to its 500A capacity and modular scalability. The use of 100% copper terminals significantly reduces resistive losses, which translates to energy savings and lower fire risk. I’ve specified these in three recent factory retrofits—they meet IEC 60947-7 standards and exceed typical thermal performance benchmarks."
Rachel Liu - Electrical Safety & Compliance Consultant
"In commercial and industrial projects, compliance isn’t optional. These terminal blocks carry RoHS, CE, and LVD certifications, making them suitable for both EU and international installations. The documentation is thorough, and the optional UL certification on the Pro Model adds value for North American deployments."
Posted: 2 days ago
"Installed in a server room with high ambient temps. After a month, no thermal issues. The modular blocks snapped together cleanly, and wire routing was straightforward. Highly recommend for critical infrastructure."
Posted: 10 days ago
"Upgraded from a cheaper brand that kept failing. These have been rock-solid. No maintenance issues, and the blue covers make audits easier. Yes, they cost more, but downtime costs more."
Posted: 3 weeks ago
"Used the 160A model with 14AWG wires in a custom control panel. Fit perfectly. Would love to see a version with 24 contacts, but for now, this does the job well."
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