The AOSI DIN-rail single-pole distribution block features a “one-in, multi-out” design, allowing the main power line to be quickly distributed to multiple devices.
It offers easy installation and a compact structure, making it widely used in control cabinets, lighting systems, industrial automation, and low-voltage power distribution applications.
AOSI DIN-rail distribution blocks simplify cabinet wiring by safely splitting power to multiple loads. The lineup covers compact push-in modules and classic UKK-type blocks to fit different wiring habits, currents, and cabinet layouts.
Next, I’ll dive into both series in detail and recommend models based on your requirements (voltage/current, number of outputs, wiring method, rail type, and whether fuse/indicator is needed) so you can purchase the right option quickly.
AOSI offers two professional power distribution module series for industrial and automation use — KV225 and LT-PTF6.
Both feature DIN-rail installation and push-in terminals, yet they focus on different electrical needs:
Each series meets IEC safety standards, supports multiple wiring sizes, and fits into modular control cabinets.
The KV225 Series provides safe and reliable power distribution for systems up to 690V /
24A.
Its strong
insulation design, flame-retardant PA66 housing, and purple-copper conductors make it ideal for lighting
mains, power branches,
and distribution panels requiring high-voltage endurance.
1. Technical Data Table
| Parameter | Specification |
|---|---|
| Rated Voltage | 690V |
| Rated Current | 24A |
| Conductor Material | Stainless Steel 301 |
| Spring Material | Purple Copper |
| Housing | PA66, flame-retardant |
| Main Wire Range | 0.5–10mm² (solid) / 0.5–6mm² (stranded) |
| Branch Wire Range | 0.2–4mm² (solid) / 0.2–2.5mm² (stranded) |
| Strip Length | 7–10mm |
| Mounting | DIN Rail |
| Color | Gray, Blue, Yellow, Red |
This series includes two structural variants to suit different wiring needs:
Both variants are available in Gray, Red, Yellow, and Blue for clear circuit identification in control cabinets.
2. Premium Materials Ensure Reliability
KV225 adopts PA66 flame-retardant housing, 310 stainless-steel spring clips, and high-conductivity purple-copper conductors, ensuring both durability and excellent electrical performance.
Every part is precisely manufactured to provide a long-lasting, heat-resistant, and oxidation-proof connection.
3. Solid Internal Structure for Stable Performance
The interior design integrates a thickened copper busbar and independent high-strength spring modules.
This ensures a firm grip on each wire, minimal contact resistance, and reliable conductivity even under high current load.
4. Flexible Splicing Design
The side-lock splicing slot allows easy modular expansion — users can combine multiple blocks side-by-side to build larger distribution units.
This modular feature enhances flexibility for cabinet layouts and supports customized wiring combinations.
5. Easy DIN-Rail Mounting & Quick Wiring
KV225 modules support standard 35mm DIN-rail installation.
Simply press the clip to secure or remove the module; the push-in terminals allow quick wiring without tools.
6. Applications
The LT-PTF6 Series focuses on high-current performance with quick push-in wiring.
Rated at 450V / 50A, it’s perfect for industrial control systems, PLC power distribution, and DC
circuits needing compact but powerful connection blocks.
1. Technical Data Table
| Parameter | Specification |
|---|---|
| Rated Voltage | 450V |
| Rated Current | 50A |
| Conductor Material | Copper |
| Housing | PA66 |
| Main Wire Range | 0.5–10mm² (solid) / 0.5–6mm² (stranded) |
| Branch Wire Range | 0.2–4mm² (solid) / 0.2–2.5mm² (stranded) |
| Color Options | Red, Blue, Gray, Yellow, Black, Green |
| Model Example | LT-PTF6X2.5-12 |
| Mounting | DIN Rail, with side lock clips |
The LT-PTF6 Power Distribution Terminal Block is built for efficiency, safety, and precision.
Every structural detail is designed to simplify wiring, enhance reliability, and improve user experience
in control cabinets.
2. One-in Multi-out Design — Efficient Power Allocation
The LT-PTF6 adopts a 1-in multi-out layout, allowing a single input line to distribute power to multiple outputs.
This structure increases wiring efficiency and reduces the need for additional junction points, keeping the control cabinet neat and organized.
3. Snap-in Locking Mechanism — Easy DIN Rail Mounting
Equipped with a snap-fit locking design, the LT-PTF6 can be quickly mounted onto standard DIN rails without tools.
The strong mechanical hold ensures vibration resistance and stable operation even in industrial environments.
4. Clear Markings — Easy Identification
Each module features laser-etched specifications on its surface, clearly displaying the model number, voltage, and current ratings.
This design helps technicians identify the correct terminal quickly, reducing wiring errors and improving workflow efficiency.
5. Applications
| Feature | KV225 Series | LT-PTF6 Series |
|---|---|---|
| Rated Voltage | 690V | 450V |
| Rated Current | 24A | 50A |
| Design Focus | High insulation, voltage protection | High current, efficient wiring |
| Connection Type | Push-in spring terminal | Push-in spring terminal |
| Material | PA66 + Purple Copper + SS Spring | PA66 + Copper |
| Ldeal For | Lighting mains, high-voltage control | Automation, DC/PLC systems |
| Colors | Gray / Blue / Yellow / Red | Gray / Red / Yellow / Black / Green |
| Mounting | DIN Rail | DIN Rail |
Final CTA Section:
Looking for the right power distribution module?
Tell us your required voltage,
current, and channel count, and we’ll recommend the most suitable AOSI model for your system.
The AOSI UKK Series Distribution Terminal Block is a modular solution designed to streamline and professionalize power wiring within control cabinets, distribution boards, and industrial electrical systems.
Serving as an efficient alternative to traditional busbar connections, the UKK terminal block offers a safe, compact, and highly reliable method for splitting a single main power line into multiple branch circuits. Its robust construction and user-friendly DIN rail mounting make it an essential component for modern industrial electrical installations.
1. Product Series Overview
The AOSI UKK Series Power Distribution Blocks — including UKK80, UKK125, UKK160, UKK250, UKK400, and UKK500 — are designed for safe and efficient branching of high-current circuits.
This series covers a full range from 80A up to 500A, suitable for various industrial and power distribution systems.
| Specification | Details |
|---|---|
| Product Name | Power Distribution Block |
| Product Series | UKK Series |
| Conductor Material | Brass with Tin Plating |
| Housing Material | PC Flame-Retardant Plastic |
| Rated Voltage | 690V |
| Rated Current | 80~500A |
| Product Color | Red / Yellow / Blue / Green |
| Installation Method | DIN Rail Mounting / Screw Mounting |
All models share a modular design with different input/output configurations:
As the rated current increases, both the input wire cross-section and the number of output terminals expand accordingly, supporting wire sizes up to 185 mm² for main inputs.
This ensures flexibility and safety for applications in control cabinets, inverters, and main power bus systems.
2. Technical Specifications
As the current capacity increases, both the input conductor size and the number of output terminals expand accordingly — from 1 in / 6 out (80A–160A models) to 1 in / 11 out (250A–500A models).
Each model supports a wide input wire range (up to 185 mm²) and multiple output wire sizes, ensuring efficient power branching for industrial systems.
| Model | Rated Voltage | Rated Current | Input / Output | Input Wire Range | Output Wire Range |
|---|---|---|---|---|---|
| UKK80 | 690V | 80A | 1 in / 6 out | 6–16 mm² |
2.5–6 mm² *4 2.5–16 mm² *2 |
| UKK125 | 690V | 125A | 1 in / 6 out | 10–35 mm² or 6–16 mm² | 2.5–16 mm² *6 |
| UKK160 | 690V | 160A | 1 in / 6 out | 10–35 mm² or 6–16 mm² | 2.5–16 mm² *6 |
| UKK250 | 690V | 250A | 1 in / 11 out | 35–120 mm² |
6–35 mm² *2 2.5–16 mm² *5 2.5–10 mm² *4 |
| UKK400 | 690V | 400A | 1 in / 11 out | 95–185 mm² |
6–35 mm² *2 2.5–16 mm² *5 2.5–10 mm² *4 |
| UKK500 | 690V | 500A | 1 in / 11 out | 3*15~8*24 mm² |
6–35 mm² *2 2.5–16 mm² *5 2.5–10 mm² *4 |
3. Product Features
The UKK series uses high-purity brass conductors with tin plating, ensuring superior conductivity and long-lasting oxidation resistance.
This material minimizes power loss, reduces heat generation, and supports large current loads up to 500A, making it ideal for heavy-duty power distribution.
Each module features interlocking splicing slots on both sides, allowing multiple blocks to be connected seamlessly.
This design supports customized multi-channel wiring and efficient use of cabinet space, offering flexibility for expansion or circuit reconfiguration.
The terminal block adopts a compact one-piece housing with a flame-retardant PC shell and a transparent blue cover, providing IP20-level electric shock protection.
Users can easily inspect internal wiring while maintaining full safety compliance.
Supports DIN rail or screw mounting, ensuring quick installation and firm fixation.
The removable transparent cover simplifies visual inspection and maintenance, saving time during wiring and servicing.
Available in red, yellow, blue, and green, the color-coded housing helps distinguish phases or circuits, making the cabinet layout more intuitive and organized.
How to Install and Use?
This terminal block is designed to make wiring simple, efficient, and safe — even for users without special tools or experience.
This quick and user-friendly process saves installation time while maintaining professional-grade reliability, making it ideal for control cabinets, automation systems, and household applications alike.
We provide samples for free, you just need to tell us what you need
A Power Distribution Module (PDM) is designed to distribute electrical power from a single input source to multiple outputs. It ensures safe and organized wiring for industrial control cabinets, automation systems, and power equipment.
Yes. The modules are compatible with both AC and DC systems, making them versatile for automation, solar, and power-supply applications.
Power Distribution Modules are widely used in industrial automation, energy storage, solar PV systems, machine control, and building electrical panels—anywhere reliable and organized power distribution is required.
Yes. Modules can be supplied in standard grey, blue (neutral), green/yellow (ground), or customized colors for easy circuit identification.
You can simply send us the model name and quantity you need (e.g., KV225-125A, LT-PTF6-4P).
We will prepare a detailed quotation within 24 hours, and free samples are available for quality evaluation on request.
KV225 is mainly used for low-voltage DC distribution and compact control panels.
LT-PTF6 features push-in connection for tool-free wiring, ideal for quick installation.
UKK series supports high current and larger conductor sizes, suitable for main power input and heavy-duty circuits.
Yes. All models are designed for DIN 35 mm rail mounting, allowing fast and secure installation inside control cabinets.
Definitely. AOSI offers OEM/ODM customization, including logo printing, special pitch size, customized current rating, or multi-channel layout to fit your specific project requirements.
All Power Distribution Modules are certified with CE, RoHS, and ISO9001, and many models can meet TÜV or UL standards upon request.
These certifications ensure reliability and compliance for global markets.
Yes. Modules can be connected side-by-side to expand distribution channels.
Interlink accessories are available to simplify parallel wiring and multi-circuit layouts.
Within 24 Hours
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