Professional Double-Layer Terminal Blocks for Modern Control Panels

Looking for an efficient wiring solution that saves panel space while maintaining reliable connections? VIOX Electric’s TBD Terminal Block series offers industry-leading double-layer screw terminal blocks specifically designed for electrical control panels, automation systems, and distribution boxes where space optimization is critical.

What Are TBD Terminal Blocks?

TBD terminal blocks are premium double-layer (2-deck) screw terminal blocks manufactured by VIOX Electric for professional electrical applications. These space-saving components allow two separate levels of wiring connections within the same footprint, effectively doubling your connection capacity without expanding panel dimensions. Mounted on standard 35mm DIN rails, VIOX TBD terminal blocks combine convenience, reliability, and space efficiency in one comprehensive solution.

Key Features of VIOX TBD Terminal Blocks

Space-Optimized Design

Innovative double-layer architecture reduces required panel space by up to 50%
Compact dimensions with standardized mounting options
Maintains excellent accessibility despite increased connection density

Superior Performance Specifications

Voltage ratings up to 600V for industrial applications
Current ratings from 10A to 30A depending on model
Excellent insulation resistance (minimum 100 MΩ between channels)
Compatible with wire sizes from 26AWG to 12AWG (0.5-6 mm²)

Durable Construction

Manufactured from high-grade modified PPE or ABS material for long-term durability
Galvanized copper conductive components ensure reliable electrical contact
Designed to withstand industrial environments and temperature variations
Secure screw-type terminal connections prevent wire loosening due to vibration

Easy Installation and Maintenance

Quick snap-on installation to standard 35mm DIN rails
Accessible screw terminals for simple wiring and maintenance
End plates included for professional finishing and safety
Clear marking options for circuit identification

VIOX TBD Terminal Block Series Specifications

Our comprehensive TBD terminal block range includes three models to meet various current requirements while maintaining the space-saving advantages of double-layer design:

Model	Height (mm)	Width a (mm)	Width b (mm)	Thickness (mm)	Current Rating (A)	Voltage Rating (V)	Conductor Size (mm²)
TBD-10A	46	34	38.4	0.8	10	600	0.5-1.5
TBD-20A	46	34	38.4	1.0	20	600	0.5-2.5
TBD-30A	46	34	38.4	1.0	30	600	4-6

All VIOX TBD terminal blocks come with end plates for professional installation. The standard configuration includes 10 positions per rail, with custom configurations available upon request.

Dimension

TBD Terminal Block Dimension

Applications for VIOX TBD Terminal Blocks

VIOX TBD terminal blocks excel in numerous applications where space constraints and reliable connections are paramount:

Industrial Automation: Organize control panel wiring efficiently in PLC and industrial automation systems
Electrical Distribution: Streamline connections in distribution boxes and switchboards
Manufacturing Equipment: Provide reliable power and signal connections in machines with limited panel space
Building Management Systems: Create compact connection solutions for HVAC and lighting control panels
Railway and Transportation: Deliver vibration-resistant connections in limited-space applications
Renewable Energy Systems: Organize wiring in solar and wind power distribution panels

Why Choose VIOX TBD Terminal Blocks?

When comparing double-layer terminal block options, VIOX’s TBD series stands apart with several decisive advantages:

Space Efficiency: Double-layer design maximizes connection density for modern compact control panels
Reliability: Premium materials and construction ensure long-term performance even in demanding environments
Safety: Complete insulation between layers prevents cross-circuit interference
Versatility: Compatible with standard DIN rails and varied wire sizes for universal application
Quality Assurance: Manufactured to strict quality standards with comprehensive testing
Value: Professional-grade performance at competitive pricing for better ROI

Installation Guidance

Installing VIOX TBD terminal blocks is straightforward:

Mount the terminal block onto a standard 35mm DIN rail using the integrated snap mechanism
Strip wire ends to appropriate length (typically 6-8mm)
Insert wire into terminal and tighten screw to manufacturer-recommended torque
Verify connection security with a gentle tug test
Attach end plates to finish the installation

Conclusion: The Professional Choice for Space-Saving Connections

VIOX Electric’s TBD Terminal Block series represents the ideal solution for electrical professionals seeking to maximize connection density without compromising reliability or safety. With models ranging from 10A to 30A, these double-layer terminal blocks deliver exceptional performance in a compact footprint, making them the professional choice for modern control panels and electrical installations.

Contact VIOX Electric today for detailed specifications, custom configurations, or to discuss how our TBD terminal blocks can optimize your next electrical project.

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VIOX TBD Terminal Block