SENTOP TBD Series
Professional Double-Layer Terminal Blocks | High-Density Wiring Solutions
Product Overview
SENTOP TBD series are premium double-layer (2-deck) screw terminal blocks specifically engineered for modern electrical control panels and automation systems where space optimization is critical. By allowing two separate levels of wiring connections within a single footprint, the TBD series effectively doubles your connection capacity without expanding panel dimensions. These blocks feature a robust screw clamping system and are manufactured from high-grade modified PPE or ABS materials, ensuring long-term reliability and excellent insulation resistance even in demanding industrial environments.
Technical Specifications
| Model No. | Height (mm) | Width a/b (mm) | Thickness (mm) | Current (A) | Voltage (V) | Conductor Size (mm²) |
|---|---|---|---|---|---|---|
| TBD-10A | 46 | 34 / 38.4 | 0.8 | 10A | 600V | 0.75 – 1.5 |
| TBD-20A | 46 | 34 / 38.4 | 1.0 | 20A | 600V | 1.5 – 2.5 |
| TBD-30A | 46 | 34 / 38.4 | 1.0 | 30A | 600V | 4.0 – 6.0 |
* All TBD series models are designed for 35mm DIN rail mounting and come with matching end plates for a professional finish.
Space-Optimized Architecture
- Dual-Level Design: Occupies half the rail space of single-layer blocks.
- High Density: Ideal for compact PLC control cabinets and distribution boxes.
- G-Rail & TH-Rail: Versatile mounting compatible with industry standards.
Mechanical & Material Excellence
- Robust Housing: Made from modified PPE/ABS for superior heat and impact resistance.
- Galvanized Copper: Ensures low contact resistance and excellent conductivity.
- Secure Clamping: Precision screw system prevents loosening due to vibration.
Industry Applications
🏭 Industrial Automation
Perfect for high-density PLC wiring where cabinet depth is available but rail length is limited.
⚡ Power Distribution
Organize complex power and signal lines in small distribution boxes and switchboards.
🚉 Transportation
Vibration-resistant screw terminals ensure signal integrity in rail and machinery applications.
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