Power distribution blocks

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: 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.

Models & specifications

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

Choose a series

How to choose

Compact 2-pole and 4-pole blocks, 100 A to 160 A: UK 207, 407, 411, 412, 415
Single-pole blocks by current, 80 A to 500 A: UKK 80A to 500A, plus the UL-style 125A-8K, 160A-8K and 250A-11K
Large incoming cable (35 to 120 mm²) with several outputs: UHTT series
Small circuits up to 10 mm² with pin-type input: UKK6/47, UKK6/47LE, UKK6G/158
Input of 10 to 95 mm² with many outputs: UKK6G, UKK6N and UKK6NB series. The number after the series name (100, 250, 400, 600) is the rated size, followed by the input range in mm²

UHTT-160/16-70

One input (16-70 mm²), 2, 6 or 12 outputs. IP20, CE and RoHS. Each configuration has its own order number.

Model	Order number	Outputs	Input (mm²)	Output (mm²)
UHTT-160/16-70/2×35	5012.144	1 in, 2 out	16-70	4-35
UHTT-160/16-70/6×16	5012.146	1 in, 6 out	16-70	4-16
UHTT-160/16-70/12×10	5012.148	1 in, 12 out	16-70	4-10

UHTT-250/35-120

One input (35-120 mm²), 3, 6 or 16 outputs. IP20, CE and RoHS. Each configuration has its own order number.

Model	Order number	Outputs	Input (mm²)	Output (mm²)
UHTT-250/35-120/3×35	5012.149	1 in, 3 out	35-120	4-35
UHTT-250/35-120/6×16	5012.151	1 in, 6 out	35-120	4-16
UHTT-250/35-120/16×10	5012.153	1 in, 16 out	35-120	4-10

UKK6/47 (63 type)

One input (pin type), 2 or 4 outputs. IP20, CE and RoHS. Each configuration has its own order number.

Model	Order number	Outputs	Input type	Output (mm²)
UKK6/47/2×10	5012.019	1 in, 2 out	pin type	1.5-10
UKK6/47/4×10	5012.021	1 in, 4 out	pin type	1.5-10

UKK6/47LE (100 type)

One input (pin type), 2 or 4 outputs. IP20, CE and RoHS. Each configuration has its own order number.

Model	Order number	Outputs	Input type	Output (mm²)
UKK6/47LE/2×10	5012.023	1 in, 2 out	pin type	1.5-10
UKK6/47LE/4×10	5012.025	1 in, 4 out	pin type	1.5-10

UKK6G/158 (100 type)

One input (pin type), 2, 4 or 8 outputs. IP20, CE and RoHS. Each configuration has its own order number.

Model	Order number	Outputs	Input type	Output (mm²)
UKK6G/158/2×16	5012.027	1 in, 2 out	pin type	1.5-10
UKK6G/158/4×16	5012.029	1 in, 4 out	pin type	1.5-10
UKK6G/158/8×10	5012.031	1 in, 8 out	pin type	1.5-10

UKK6G-100/10-35

One input (10-35 mm²), 2, 4, 8 or 12 outputs. IP20, CE and RoHS. Each configuration has its own order number.

Model	Order number	Outputs	Input (mm²)	Output (mm²)
UKK6G-100/10-35/2×25	5012.033	1 in, 2 out	10-35	1.5-25
UKK6G-100/10-35/4×16	5012.035	1 in, 4 out	10-35	1.5-16
UKK6G-100/10-35/8×10	5012.037	1 in, 8 out	10-35	1.5-10
UKK6G-100/10-35/12×10	5012.039	1 in, 12 out	10-35	1.5-10

UKK6G-250/16-50

One input (16-50 mm²), 2, 4, 8 or 12 outputs. IP20, CE and RoHS. Each configuration has its own order number.

Model	Order number	Outputs	Input (mm²)	Output (mm²)
UKK6G-250/16-50/2×25	5012.040	1 in, 2 out	16-50	1.5-25
UKK6G-250/16-50/4×16	5012.042	1 in, 4 out	16-50	1.5-16
UKK6G-250/16-50/8×10	5012.044	1 in, 8 out	16-50	1.5-10
UKK6G-250/16-50/12×10	5012.046	1 in, 12 out	16-50	1.5-10

UKK6G-400/25-70

One input (25-70 mm²), 2, 8 or 18 outputs. IP20, CE and RoHS. Each configuration has its own order number.

Model	Order number	Outputs	Input (mm²)	Output (mm²)
UKK6G-400/25-70/2×25	5012.047	1 in, 2 out	25-70	1.5-25
UKK6G-400/25-70/8×16	5012.051	1 in, 8 out	25-70	1.5-16
UKK6G-400/25-70/18×10	5012.055	1 in, 18 out	25-70	1.5-10

UKK6G-600/35-95

One input (35-95 mm²), 2, 8 or 18 outputs. IP20, CE and RoHS. Each configuration has its own order number.

Model	Order number	Outputs	Input (mm²)	Output (mm²)
UKK6G-600/35-95/2×25	5012.056	1 in, 2 out	35-95	1.5-25
UKK6G-600/35-95/8×16	5012.060	1 in, 8 out	35-95	1.5-16
UKK6G-600/35-95/18×10	5012.064	1 in, 18 out	35-95	1.5-10

UKK6N-100/10-35

One input (10-35 mm²), 8 or 12 outputs. IP20, CE and RoHS. Each configuration has its own order number.

Model	Order number	Outputs	Input (mm²)	Output (mm²)
UKK6N-100/10-35/8×16	5012.069	1 in, 8 out	10-35	1.5-16
UKK6N-100/10-35/12×16	5012.071	1 in, 12 out	10-35	1.5-16

UKK6N-250/16-50

One input (16-50 mm²), 8 or 12 outputs. IP20, CE and RoHS. Each configuration has its own order number.

Model	Order number	Outputs	Input (mm²)	Output (mm²)
UKK6N-250/16-50/8×16	5012.077	1 in, 8 out	16-50	1.5-16
UKK6N-250/16-50/12×16	5012.079	1 in, 12 out	16-50	1.5-16

UKK6N-400/25-70

One input (25-70 mm²), 12 outputs. IP20, CE and RoHS. Each configuration has its own order number.

Model	Order number	Outputs	Input (mm²)	Output (mm²)
UKK6N-400/25-70/12×16	5012.085	1 in, 12 out	25-70	1.5-16

UKK6N-600/35-95

One input (35-95 mm²), 6 outputs. IP20, CE and RoHS. Each configuration has its own order number.

Model	Order number	Outputs	Input (mm²)	Output (mm²)
UKK6N-600/35-95/6×16	5012.087	1 in, 6 out	35-95	1.5-16

UKK6NB-100/10-35

One input (10-35 mm²), 2, 8 or 12 outputs. IP20, CE and RoHS. Each configuration has its own order number.

Model	Order number	Outputs	Input (mm²)	Output (mm²)
UKK6NB-100/10-35/2X25	5012.091	1 in, 2 out	10-35	1.5-25
UKK6NB-100/10-35/8X10	5012.095	1 in, 8 out	10-35	1.5-10
UKK6NB-100/10-35/12X10	5012.097	1 in, 12 out	10-35	1.5-10

UKK6NB-250/16-50

One input (16-50 mm²), 2, 8 or 12 outputs. IP20, CE and RoHS. Each configuration has its own order number.

Model	Order number	Outputs	Input (mm²)	Output (mm²)
UKK6NB-250/16-50/2X25	5012.098	1 in, 2 out	16-50	1.5-25
UKK6NB-250/16-50/8X10	5012.102	1 in, 8 out	16-50	1.5-10
UKK6NB-250/16-50/12X10	5012.104	1 in, 12 out	16-50	1.5-10

UKK6NB-400/25-70

One input (25-70 mm²), 2, 8 or 18 outputs. IP20, CE and RoHS. Each configuration has its own order number.

Model	Order number	Outputs	Input (mm²)	Output (mm²)
UKK6NB-400/25-70/2X25	5012.105	1 in, 2 out	25-70	1.5-25
UKK6NB-400/25-70/8X16	5012.109	1 in, 8 out	25-70	1.5-16
UKK6NB-400/25-70/18X10	5012.113	1 in, 18 out	25-70	1.5-10

UKK6NB-600/35-95

One input (35-95 mm²), 2, 4, 4, 6 or 16 outputs. IP20, CE and RoHS. Each configuration has its own order number.

Model	Order number	Outputs	Input (mm²)	Output (mm²)
UKK6NB-600/35-95/2×25	5012.114	1 in, 2 out	35-95	1.5-25
UKK6NB-600/35-95/24X6	5012.125	1 in, 4 out	35-95	1.5-16
UKK6NB-600/35-95/4×16	5012.116	1 in, 4 out	35-95	1.5-16
UKK6NB-600/35-95/6X16	5012.117	1 in, 6 out	35-95	1.5-16
UKK6NB-600/35-95/16X10	5012.121	1 in, 16 out	35-95	1.5-10

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

Frequently asked questions

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.

Product inquiry

Selection & support

Selecting LEIPOLE power distribution blocks

Match rated current, incoming cable size and number of outputs before confirming a block.

How do I choose between UK, UKK, UHTT and UKK6 distribution blocks?

Start with the rated current and the incoming cable cross-section. UK 207 to 415 are compact 2-pole and 4-pole blocks from 100 A to 160 A. UKK 80A to 500A are single-pole blocks. UHTT takes large incoming cables of 16 to 120 mm². UKK6, UKK6G, UKK6N and UKK6NB give one input and several outputs. Confirm the exact order number in the technical data.

Check technical documents

What do the numbers in a name such as UKK6G-250/16-50 mean?

The first number is the rated size and the second is the input conductor range in mm². UKK6G-250/16-50 is a 250 size block with an input of 16 to 50 mm². Always check the order number and terminal data for the model you need.

Confirm the model

What should I include in a power distribution block inquiry?

Include the model or order number, incoming cable size, number and size of outgoing conductors, rated current, quantity and delivery destination. The Singapore team can then check the shortlist against the current technical document.

Request a quotation

What current ratings do UKK power distribution blocks cover?

UKK blocks run from UKK 80A through 125A, 160A, 250A and 400A to UKK 500A, with IEC 60947-7-1 ratings and 690 V IEC insulation, and UL/CSA ratings listed in the table.

Check technical documents

Enclosure cooling

Enclosure heating

Thermostat & Hygrostat

Busbar System

Control transformer

Enclosure accessories

Terminal block