CDB4/3BU is a 3-level feed-through terminal block in blue color, designed for safe, compact, and efficient electrical wiring in industrial control panels, switchboards, automation systems, PLC panels, instrumentation panels, and distribution boards. This multi-level terminal block is specifically engineered for applications where panel space optimization and organized wiring are essential. By providing three independent wiring levels in a single compact terminal block, the CDB4/3BU helps reduce panel size, improve circuit organization, and simplify electrical connections in complex industrial installations.
The CDB4/3BU terminal block is ideal for modern industrial control systems where multiple circuits need to be wired in limited panel space. Instead of using multiple single-level terminal blocks, this compact design combines three feed-through connection levels in one unit, allowing electricians and panel builders to create a cleaner and more efficient wiring layout. This not only saves DIN rail space but also improves maintenance access and panel aesthetics.
Designed with a screw clamp connection system, the CDB4/3BU ensures strong and reliable conductor clamping for secure electrical continuity. The screw clamp mechanism provides vibration-resistant wire holding, reducing the chances of loose connections during long-term operation in demanding industrial environments. This makes the terminal block suitable for machine wiring, process automation, OEM panel building, switchgear assemblies, and industrial electrical control systems.
The blue color coding makes this terminal block especially useful for applications requiring specific circuit identification, neutral wiring, signal wiring, or organized circuit separation in electrical panels. Color-coded terminal blocks help electricians quickly identify wiring paths during installation, troubleshooting, and maintenance, improving safety and reducing downtime.
Manufactured from high-quality flame-retardant polyamide insulating material, the CDB4/3BU offers excellent electrical insulation, thermal resistance, and mechanical durability. Its compact body design supports DIN rail mounting and allows fast installation in industrial electrical panels. The high insulation housing protects conductors from accidental contact and supports safe operation in industrial electrical environments.
Because of its multi-level compact design, dependable screw clamp connection, and long service life, the CDB4/3BU is widely used in industrial automation, machine control panels, OEM manufacturing, instrumentation systems, process industries, and commercial electrical installations where reliable and organized wiring is required.
| Parameter | Specification |
|---|---|
| Product Code | CDB4/3BU |
| Product Type | 3-Level Feed Through Terminal Block |
| Color | Blue |
| Connection Type | Screw Clamp |
| Number of Levels | 3 Level |
| Rated Voltage | 800 V |
| Rated Current | 32 A |
| Conductor Capacity | 0.2 – 4 mm² |
| AWG Range | 24 – 10 AWG |
| Mounting Type | DIN Rail Mounting |
| Wire Entry | Side Entry |
| Housing Material | Flame Retardant Polyamide |
| Rated Surge Voltage | 8 kV |
| Pollution Degree | 3 |
| Insulation Class | Industrial Grade |
| Mechanical Strength | High |
| Operating Temperature | Industrial Standard Range |
| Electrical Function | Feed Through Multi-Level Wiring |
| Installation | Screw Tightening |
| Application | Industrial Panel Wiring |
CDB4/3BU is commonly used in:
The CDB4/3BU terminal block provides an excellent solution for electrical panels where compact wiring and circuit organization are essential. By integrating three feed-through wiring levels into one terminal block, it helps save DIN rail space and reduces overall panel size. This is especially useful in automation panels and machine control systems where multiple wiring circuits must be accommodated in limited space.
Its screw clamp connection system provides dependable conductor holding and stable electrical continuity, reducing maintenance issues caused by loose wires. The vibration-resistant design makes it suitable for industrial machinery and heavy-duty operating environments.
The blue color coding improves terminal identification, making troubleshooting and maintenance easier for electricians and panel technicians. This contributes to faster fault finding and safer panel servicing.
Its durable insulating housing provides excellent protection against heat, mechanical stress, and electrical leakage, ensuring long operational life and reliable industrial performance.
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