CDB4/4BU is a four-level feed through terminal block in blue color designed for industrial electrical systems where high-density conductor termination, compact DIN rail wiring, organized circuit grouping, and efficient multi-level electrical distribution are required. In electrical control panels, PLC systems, switchboards, machine control cabinets, and automation assemblies, engineers often need to connect multiple conductors within limited panel space. Using standard single-level terminals in such situations increases panel size and makes wiring more complex.
The CDB4/4BU solves this challenge by integrating four independent feed through wiring levels in one compact insulated terminal body, allowing multiple conductors to be connected vertically while reducing DIN rail space consumption. This improves wiring density, panel compactness, and terminal organization in industrial electrical systems.
The blue housing provides an additional visual identification advantage and is commonly used for neutral circuit grouping, specific wiring section identification, and organized panel circuit separation, helping maintenance engineers identify terminal sections quickly.
This terminal block is ideal for industrial applications where space optimization, structured conductor management, and reliable electrical continuity are essential.
The CDB4/4BU operates as a four-level feed through terminal block, where conductors are connected through four separate electrical levels integrated inside one compact terminal housing.
Its working design provides:
The screw clamp conductor connection mechanism securely holds each conductor and creates dependable electrical continuity, ensuring safe and stable current transfer in industrial electrical systems.
Its four-level vertical arrangement makes it ideal for high-density panel wiring applications.
The blue housing color improves visual recognition of dedicated terminal sections inside electrical panels.
Safety advantages include:
Color-based terminal grouping improves panel management and electrical maintenance efficiency.
Blue terminal blocks are commonly used for:
This supports professional electrical panel design.
The CDB4/4BU is manufactured using flame-retardant engineering polyamide insulation with industrial-grade conductive terminal hardware, designed for industrial electrical applications.
Construction advantages include:
Its rugged construction ensures dependable performance in demanding industrial electrical systems.
Using CDB4/4BU improves electrical panel layout by combining multiple conductor circuits into one compact terminal block.
Benefits include:
| Parameter | Specification |
|---|---|
| Product Code | CDB4/4BU |
| Product Type | Four-Level Feed Through Terminal Block |
| Color | Blue |
| Connection System | Screw Clamp |
| Number of Levels | 4 Level |
| Rated Voltage | 800 V |
| Rated Current | 32 A |
| Conductor Capacity | 0.2 – 4 mm² |
| AWG Range | 24 – 10 AWG |
| Mounting Style | DIN Rail |
| Wire Entry | Side Entry |
| Housing Material | Flame Retardant Polyamide |
| Rated Surge Voltage | 8 kV |
| Pollution Degree | 3 |
| Electrical Function | Feed Through Multi-Circuit Terminal |
| Installation Type | Screw Tightening |
| Mechanical Strength | High |
| Industrial Use | PLC Panels, Automation Systems, Switchboards |
Supports compact high-density industrial wiring.
Reduces DIN rail usage in electrical cabinets.
Blue housing supports panel section identification.
Screw clamp design provides reliable conductor holding.
Supports structured multi-circuit wiring layouts.
Built for demanding electrical applications.
Improves troubleshooting and servicing access.
CDB4/4BU is widely used in:
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