TB3340 Ceramic Terminal Block

The TB3340 Ceramic Terminal Block represents an efficient solution for small-scale power distribution, specifically engineered for industrial applications requiring multiple reliable connections in a minimal footprint. This professional-grade 3-position terminal block combines a robust 40A current rating with superior thermal stability and outstanding electrical insulation properties, making it the ideal choice for engineers and electricians working on industrial systems where space efficiency and connection reliability are essential requirements.

Ultra-Compact Multi-Circuit Design for Specialized Applications

The TB3340 features a precisely engineered 3-in-3-out configuration designed to provide optimal connection capacity in the smallest possible footprint. Manufactured from high-frequency ceramic material, this terminal block delivers superior insulation properties that significantly outperform conventional plastic alternatives in high-temperature environments. The ceramic housing ensures complete resistance to aging, cracking, and deformation even under extreme temperature conditions up to 750°C, guaranteeing long-term stability and safety for your critical electrical connections.

Each terminal block incorporates six precision-engineered connection points with copper conductors for optimal electrical performance and M3-compatible screw terminals manufactured from durable plated metal. This professional-grade construction provides secure and reliable wire clamping that withstands vibration and thermal cycling without loosening over time, ensuring consistent electrical contact across all three circuits in demanding applications where connection integrity is critical.

Key Features and Technical Advantages

• Ultra-Compact Design: Minimized 55.5mm × 25mm × 13.6mm dimensions make it ideal for installations with severely limited space
• Low-Profile Height: Exceptionally slim 13.6mm height profile allows installation in the shallowest enclosures and tightest spaces
• Efficient Three-Position Layout: Three-position configuration offers excellent balance between connection capacity and minimal dimensions
• Substantial Current Capacity: 40A rating per position provides ample capacity for industrial control and power applications
• M3 Screw Compatibility: Precision-engineered M3 screw terminals ensure secure connections with appropriate torque requirements
• Superior Temperature Resistance: Ceramic construction withstands continuous operation at temperatures up to 750°C, far exceeding the capabilities of plastic terminal blocks
• Excellent Electrical Insulation: Ceramic material provides exceptional dielectric strength and prevents current leakage between adjacent positions
• Flame Retardant: Naturally fire-resistant material eliminates the risk of ignition or flame propagation in critical installations
• Chemical Resistance: Impervious to oils, solvents, and most industrial chemicals, ensuring durability in harsh environments

Technical Specifications

TB3340 Detailed Specifications:

• Model Number: TB3340
• Configuration: 3-in, 3-out (6 connection points)
• Current Rating: 40A per position
• Dimensions: 55.5mm (L) × 25mm (W) × 13.6mm (H)
• Housing Material: High-frequency ceramic
• Conductor Material: Copper core
• Screw Type: M3
• Mounting Distance: 48mm center-to-center
• Compatible Wire Types: Suitable for both soft and hard wires
• Maximum Operating Temperature: 750°C
• Dielectric Strength: 3kV
• Insulation Resistance: >1500MΩ at 500VDC
• Voltage Rating: 600V AC/DC

Space-Critical Applications

The TB3340 Ceramic Terminal Block is specifically engineered for applications requiring reliable connections in extremely space-constrained environments:

• Miniature Control Panels: Distribution points in highly compact automation and control applications
• Small Equipment: Power connections in space-limited industrial machines and devices
• Instrumentation: Connection points in precision measurement and monitoring equipment
• Compact Electrical Enclosures: Power distribution in minimal-space electrical cabinets
• Small Motors: Power connections for compact motor drives and controls
• Specialized Electronics: Connection points in custom-designed electronic systems requiring heat resistance
• Automotive Systems: Electrical connections in vehicle systems with severe space constraints
• Portable Equipment: Power distribution in transportable industrial equipment

Professional Installation Guidelines

For optimal performance and reliability in ultra-compact installations, follow these specialized guidelines:

1. Mount securely to a clean, flat surface using the provided 48mm mounting holes
2. Maintain minimum 20mm clearance around terminal block for proper heat dissipation when possible
3. Strip wires to appropriate length (typically 6-7mm for M3 terminals)
4. Loosen M3 terminal screws fully before inserting wires
5. Insert conductors completely into terminal openings
6. Tighten M3 screws to a torque of 0.6-0.8 N·m (do not overtighten)
7. Verify secure connection through visual inspection and mechanical testing
8. Implement clear circuit identification for future maintenance

The TB3340 Advantage: Ultimate Space Efficiency

The TB3340 Ceramic Terminal Block delivers an exceptional balance of performance and miniaturization for applications where installation space is at an absolute premium. Its ultra-compact dimensions make it among the smallest multi-circuit terminal blocks in our lineup, allowing efficient use of limited panel space without compromising on current capacity or connection reliability. The ceramic construction ensures exceptional temperature resistance and electrical isolation, providing the reliability demanded by industrial environments where plastic alternatives would quickly degrade.

With its ultra-compact design, low-profile height, and superior thermal performance, the TB3340 represents the definitive solution for industrial power distribution applications requiring multiple medium-current circuits in the most space-constrained installations where every millimeter matters.