Schneider BlokSeT High-Density Modular Distribution Cabinet
Using a 50 mm standard modular prefabricated frame combined with an innovative fishbone busbar connection technology, the system offers ultra-high integration density, flexible mixed-configuration assembly, and rapid disassembly and expansion. It is perfectly suited for projects with space-constrained data centers, complex operating conditions, and future expansion or modification requirements.
Schneider BlokSeT High-Density Modular Distribution Cabinet
Schneider Electric BlokSeT is Schneider Electric’s new-generation high-end modular low-voltage switchboard, fully compliant with IEC 61439-2 and GB/T 7251.2 standards, and certified through comprehensive Type Tested Assembly (TTA) verification.
Built on Schneider Electric’s EcoStruxure IoT architecture, the product integrates four core advantages: ultimate safety, intelligent operation and maintenance, ultra-high-density modular design, and long-term durability. It is engineered to meet both the demanding operating conditions of industrial applications and the refined power distribution requirements of high-end buildings.
As a premium low-voltage power distribution solution for smart manufacturing, data centers, renewable energy, and large-scale public infrastructure projects, BlokSeT has been deployed in hundreds of thousands of projects worldwide, with its performance and quality thoroughly proven by the market.
Advantages and Features
Maximum Space Utilization: The modular high-density layout allows a single cabinet to accommodate up to 24 quarter-size low-current drawer circuits, achieving over 30% more circuits than traditional cabinets. With a minimum cabinet width of just 600 mm, it significantly reduces data center footprint and saves civil construction costs.
Full-Category Mixed Compatibility: The same cabinet can flexibly house both fixed and withdrawable functional units, integrating power distribution and motor control in one. Drawer sizes cover 1/4, 1/2, and full-size units, supporting motor equipment from 0.37 kW to 800 kW, ensuring high adaptability.
Tool-Free Quick Assembly: Featuring innovative fishbone, hole-free busbar connection technology, cabinets can be joined and busbars extended on-site without drilling. Vertical busbars use a dual-clamp adaptive gripping structure, allowing insertion and removal without special tools, with clamping force that automatically increases with current, ensuring efficient installation and reliable connections.
Full-Scenario Installation Adaptability: Supports top, bottom, and side cable entries, as well as left, right, and back-to-back layouts, making it ideal for tight data centers, prefabricated power rooms, and equipment-dense workshops.
Factory-standardized prefabrication shortens on-site installation and commissioning by 40%. Drawers of the same specification are 100% interchangeable, standardizing spare parts and reducing inventory and maintenance costs. Future circuit additions, removals, or capacity upgrades can be performed without modifying the cabinet structure, enabling convenient and efficient expansion.
General Data
| Item | Specification |
Application | Power distribution / Motor control |
Service Index (IS) | 211 to 333 |
Standards | IEC 60439-1 / IEC 60529 / IEC 61641 |
Climate Resistance | Humidity: IEC 60068-2-30 |
Dry heat: IEC 60068-2-2 | |
Cold: IEC 60068-2-1 | |
Salt spray: IEC 60068-2-11 | |
Installation | Indoor |
EMC | Class 2 |
Mechanical Data
| Item | Specification |
Cable Entry | Top / Bottom |
Wiring Access | Front / Rear |
Protection Degree | IP20–IP54 |
Form of Separation | 2b / 3b / 4a / 4b |
Connection Type | FFD / WFD / WFW / WWW |
Dimensions (mm) | Height: 2200 |
Width: 500–1200 | |
Depth: 400 / 600 / 1000 | |
Average Weight | 650 kg |
Enclosure | Epoxy powder coating > 50 µm |
Frame | Galvanized |
Color | RAL9002 / RAL7016 |
Electrical Data
| Item | Specification |
Rated Insulation Voltage (Ui) | 1000 V |
Rated Operating Voltage (Ue) | 400 / 690 V AC |
Frequency | 50 / 60 Hz |
Rated Impulse Voltage (Uimp) | 12 kV |
Auxiliary Circuit Voltage | Max. 230 V AC |
Overvoltage Category | IV |
Pollution Degree | 3 |
Busbar Ratings
| Item | Specification |
Horizontal Busbar Current | Up to 6300 A |
Vertical Busbar Current | Up to 3200 A |
Horizontal Busbar:
Short-time withstand current (Icw/1s): 30 / 50 / 85 / 100 kA
Peak withstand current (Ipk): 63 / 105 / 187 / 220 kA
Vertical Busbar:
Short-time withstand current (Icw/1s): 30 / 50 / 85 kA
Peak withstand current (Ipk): 63 / 105 / 178 kA
Safety & System
| Item | Specification |
Internal Arc Protection (IEC 61641) | 85 kA / 0.3 s |
Earthing System | TT / IT / TNS / TNC |
Max Incoming/Outgoing Switch | 6300 A |
Max Motor Capacity | 250 kW |
