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Power distribution blocks

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Product Overview

Leipole power distribution blocks always provide the best current distribution solutions with most efficiency and safety for electrical systems, support 1-input multi-output design, and 3 pole power distribution which cover 16-185mm² cable specifications, comply with CE and IEC 60947-7 standards, and are suitable for industrial automation, renewable energy and rail transportation.

Key Advantages

Installation Advantages

  • Ease for Wiring: The connections between main circuit breakers (MCBs) and multiple downstream circuits will become more organized and easier with this simplify of the installation process and reduces labor time.
  • Safety Enhancement: The enclosed design with insulated barriers between terminals helps prevent accidental contact with live parts, reducing shock hazards during installation and maintenance.
  • Neat Organization: By centralizing multiple connections at a single point, they create a more organized panel layout that’s easier to troubleshoot and maintain.

Technical Benefits

  • Multiple Output Options: As you noted, the multiple output terminals give engineers flexibility in system design, allowing for various circuit configurations from a single power source.
  • Current Distribution: They efficiently distribute current from a single large conductor to multiple smaller conductors while maintaining proper ampacity ratings.
  • Space Optimization: Terminal power distribution block often require less space than equivalent terminal strip arrangements, making them ideal for compact electrical panels.
  • Reduced Voltage Drop: By providing direct, low-resistance connections, they help minimize voltage drop compared to daisy-chained wiring methods.

Design Flexibility

  • Scalability: Many wire distribution block are modular and can be expanded as system requirements grow.
  • Ampacity Range: Available in various sizes to handle different current ratings, from small control circuits to large power distribution applications.
  • Material Options: Typically available in copper or aluminum to match specific application requirements and budget constraints.

Product Catagories

Power Distribution Blocks UKK

LEIPOLE Power Distribution Blocks are organized into two primary series—UK Series and UKK Series—to address a broad spectrum of panel-level power-distribution requirements. Each series is engineered to provide secure, low-impedance connections, simplify bus-bar and branch-circuit wiring, and optimize space on standard DIN rails or panel surfaces.

Part Number l= l= lcw KA rms Is lPk KA Ui Vin Vin Installation Hole wdt_created_at wdt_last_edited_by wdt_last_edited_at Installation Hole
UKK 80A 80A IEC 60947-7-1 80 AMP UL/CSA 3 22 690V IEC 600 V UL 13 Kiva 13/06/2025 09:11 AM Kiva 24/06/2025 08:43 AM 54mm
UKK125A 125A IEC 60947-7-1 150 AMP UL/CSA 4.2 30 690V IEC 600 V UL 14 Kiva 13/06/2025 09:32 AM Kiva 24/06/2025 08:44 AM 64mm
UKK 250A 250A IEC 60947-7-1 255 AMP UL/CSA 24.5 51 690V IEC 600 V UL 19 Kiva 13/06/2025 09:33 AM Kiva 24/06/2025 08:52 AM 85 x 29mm
UKK 160A 160A IEC 60947-7-1 200 AMP UL/CSA 11.8 30 690V IEC 600 V UL 20 Kiva 13/06/2025 09:34 AM Kiva 24/06/2025 08:45 AM 64mm
UKK 400A 400 A IEC 60947-7-1 355 AMP UL/CSA 24.5 51 690V IEC 600 V UL Kiva 24/06/2025 08:53 AM Kiva 24/06/2025 08:53 AM 85 x 29mm
Part Number l= l= lcw KA rms Is lPk KA Ui Vin Vin Installation Hole

Applications

Electrical power distribution blocks are versatile components used in numerous electrical applications:

Industrial Applications

  • Motor control centers (MCCs) for 3 pole power distribution block to multiple motors
  • Industrial control panels where multiple circuits branch from main feeds
  • Manufacturing equipment requiring power distribution to various subsystems
  • Automated production lines with multiple power requirements
  • Machine tool electrical systems

Commercial Buildings

  • Main electrical rooms for distributing power to multiple floors or zones
  • HVAC system power distribution
  • Lighting control panels
  • Elevator and escalator control systems
  • Commercial kitchen equipment power distribution

Data Centers

  • Server rack power distribution
  • UPS (Uninterruptible Power Supply) output distribution
  • PDU (Power Distribution Unit) internal connections
  • Redundant power system implementations
  • Network equipment power distribution

Renewable Energy Systems

  • Solar PV combiner boxes for connecting multiple strings
  • Wind turbine power management systems
  • Battery storage systems for connecting multiple battery banks
  • Microgrid power distribution nodes
  • Electric vehicle charging stations

Transportation Systems

  • Railway signaling power distribution
  • Airport lighting systems
  • Marine electrical systems on ships and boats
  • Electric vehicle power distribution systems
  • Traffic control system power distribution

Telecommunications

  • Cell tower power distribution
  • Network equipment cabinets
  • Telecom facility power systems
  • Radio transmission equipment
  • Satellite communication ground stations

Basic Knowledge

The key criteria need to consider for selection

  • Voltage Rating: Must match your system voltage 600V.
  • Current Rating: Select power terminal block rated for at least 125% of the expected maximum load
  • Wire Size Compatibility: Pay attention to the wire size of input and output
  • Number of Poles: Choose based on your system either single phase or three phases.
  • Number of Outputs: Determine how many branch circuits you need per pole

Safety Guidelines

  • Insulation: Place cover on the power dist block after wiring.
  • Labeling: put the labels on the cover for future maintenance
  • Testing: check power terminal block connector with appropriate test equipment before energizing
  • Enclosure: Install in appropriate electrical enclosures with proper environmental ratings

Why Choose Leipole?

Safety Guidelines

  • Insulation: Place cover on the power dist block after wiring.
  • Labeling: put the labels on the cover for future maintenance
  • Testing: check connections with appropriate test equipment before energizing
  • Enclosure: Install in appropriate electrical enclosures with proper environmental ratings

Design Features

  • feature compact designs to save space in the enclosure
  • IP20 ground distribution block for enhanced user protection
  • transparent covers for visual inspection during maintenance

Technical support

  • available in various voltage and current ratings to suit different applications
  • support a wide range of wire sizes for wiring flexibility
  • options for DIN rail or panel mounting methods (DIN rail, panel mount)

Certification and Compliance

  • complies with relevant international safety standards
  • UL/CE/VDE certified

Customization Process

Accurate Demand Analysis

Professional engineers deeply understand your equipment parameters, application environment, and special requirements.

Customized Technical Solutions

R&D teams develop optimal heat dissipation solutions based on your needs, including airflow calculations and installation planning.

 Sample Testing and Validation

Provide samples for real-environment testing, collect data feedback, and ensure solution effectiveness.

Mass Production

After confirming the solution, production follows strict ISO9001 quality management systems to ensure batch stability.

FAQ

Q: How to select the correct models of distribution block for my application?

A: It’s important to determin your maximum current , rated voltage, wire sizes, and number of required circuits. Always size for at least 125% of your maximum anticipated load.

Q: Can I mix wire sizes on the same distribution block?

A: Yes, most distribution blocks are designed to connect different wire sizes on input versus output terminals. Please verify with your local supplier for more information.

Q: Are distribution blocks suitable for both AC and DC applications?

A: Yes power terminal blocks can handle both AC and DC power.

🔹How does a DIN rail mount power distribution block simplify panel wiring?

💡DIN rail mounting lets you snap the distribution block onto standard rails without drilling, reducing installation time and keeping wiring neat.

🔹Why choose an insulated power distribution block for control panels?

💡Insulated blocks prevent accidental contact, protect against short circuits, and enhance safety in high-voltage or crowded cabinet environments.

🔹What applications require a high current power distribution block 400A?

💡400 A blocks are used for main feeders, heavy machinery, and large motor starters where robust, low-loss power branching is critical.

🔹What advantages do modular power distribution block systems offer?

💡Modular systems let you snap together multiple blocks, customize output counts, and expand capacity easily—ideal for evolving or multi-circuit panels.

🔹Are IP20 finger-safe power distribution blocks necessary for operator safety?

💡Yes. IP20-rated blocks provide finger-safe barriers over live parts, reducing the risk of electric shock during maintenance or troubleshooting.

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