CX2.5/3BU is a three-level feed through spring clamp terminal block in blue color specially designed for industrial electrical systems where high-density conductor termination, compact DIN rail wiring, and organized neutral or dedicated circuit distribution are required. In electrical control panels, PLC cabinets, industrial automation systems, instrumentation panels, switchboards, and machine control assemblies, engineers often need to connect multiple circuits in a limited terminal space while maintaining clean and organized wiring layouts.
Using conventional single-level terminal blocks in such applications consumes more DIN rail space and increases wiring congestion. The CX2.5/3BU solves this challenge by integrating three independent conductor connection levels in one compact insulated terminal body, allowing multiple circuits to be connected vertically while reducing panel space requirements and simplifying terminal distribution. The blue housing is commonly used for neutral conductor grouping, dedicated circuit identification, and organized panel section management, making maintenance easier and circuit tracing faster.
Its spring clamp conductor locking technology provides fast conductor insertion, vibration-resistant wire holding, and maintenance-free electrical continuity, making it highly suitable for industrial environments where reliability, compactness, and fast installation are essential.
The CX2.5/3BU operates as a three-level spring clamp feed through terminal block, where conductors are connected through three independent electrical paths integrated inside one compact terminal body.
Its working design provides:
The spring clamp connection system uses pressure-based conductor locking, ensuring stable conductor retention and reliable electrical continuity without frequent retightening. This makes the terminal ideal for industrial control systems exposed to vibration and long-term electrical loading.
The blue housing color improves visual recognition of dedicated terminal sections inside electrical panels.
Safety advantages include:
Color-coded terminal grouping improves electrical panel safety and maintenance efficiency.
Blue terminal blocks are commonly used for:
This supports structured and professional electrical panel management.
The CX2.5/3BU is manufactured using flame-retardant polyamide insulated housing with precision spring clamp conductive hardware, designed for demanding industrial electrical environments.
Construction advantages include:
Its rugged construction ensures dependable industrial electrical performance.
Using CX2.5/3BU improves panel layout by combining multiple conductor circuits into one compact terminal block.
Benefits include:
| Parameter | Specification |
|---|---|
| Product Code | CX2.5/3BU |
| Product Type | Three-Level Feed Through Spring Clamp Terminal Block |
| Color | Blue |
| Rated Voltage | 1000 V |
| Rated Current | 24 A |
| Conductor Capacity | 0.2 – 2.5 mm² |
| AWG Range | 24 – 12 AWG |
| Connection System | Spring Clamp |
| Number of Levels | 3 Level |
| Mounting Style | DIN 35 / DIN 35-15 Rail |
| Wire Entry | Top Entry |
| Operation | Screwdriver Operated |
| Housing Material | Flame Retardant Polyamide |
| Rated Surge Voltage | 8 kV |
| Pollution Degree | 3 |
| Length | 62.2 mm |
| Electrical Function | Feed Through Multi-Level Terminal |
| 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 quick identification.
Spring pressure ensures reliable wire locking.
Suitable for industrial operating conditions.
Built for demanding industrial applications.
Improves clean and structured wiring layouts.
CX2.5/3BU is widely used in:
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