Heavy-current Terminal Block Manufacturer

Heavy-current Terminal Blocks are engineered to handle high electrical loads easily and reliably. These terminal blocks are designed to support large electrical currents, making them ideal for use in industrial, commercial, and heavy-duty applications where standard terminal blocks would be inadequate. They are the backbone of robust electrical systems that require durable, high-performance connections.

1. High Current Rating:
The primary selling point of heavy-current terminal blocks is their ability to manage large amounts of electrical current. This high current rating allows them to be used in applications such as heavy machinery, power distribution systems, and large-scale manufacturing processes. The increased capacity ensures that the terminal blocks can handle the demands of high-power electrical systems without overheating or failing.

2. Durability and Strength:
Heavy-current terminal blocks are constructed with robust materials such as high-grade plastics or metals that can withstand the stress of continuous high current flow. This durability ensures a long service life, reducing the need for frequent replacements and lower maintenance costs.

3. Safety Features:
Safety is important in electrical systems, especially those dealing with high currents. Heavy-current terminal blocks often come with built-in safety features such as insulation barriers, protective covers, and locking mechanisms. These features prevent accidental contact with live parts and ensure that the connections remain secure, reducing the risk of electrical shorts and fires.

4. Versatility and Compatibility:
One of the key benefits of heavy-current terminal blocks is their versatility. They are designed to accommodate a wide range of wire sizes and types, from thin control wires to thick power cables. This compatibility allows for easy integration into existing systems or the flexibility to adapt to different wiring configurations in new installations.

5. Easy Installation and Maintenance:
Despite their robust construction, heavy-current terminal blocks are designed for easy installation and maintenance. They often feature tool-less connection systems that allow for quick and secure connections without the need for special tools. This ease of use saves time and labor costs during installation and makes maintenance tasks more manageable.

6. Corrosion Resistance:
In industrial environments, terminal blocks may be exposed to harsh chemicals, moisture, and other corrosive elements. Heavy-current terminal blocks are often made from materials that are resistant to corrosion, ensuring that they maintain their integrity and performance over time, even in challenging environments.

7. Compliance with Standards:
To ensure reliability and safety, heavy-current terminal blocks are designed to comply with international standards such as UL, CE, and IEC. These certifications provide assurance that the terminal blocks have been rigorously tested and meet the high standards for electrical safety and performance.

8. Temperature Range:
Heavy-current terminal blocks are designed to operate effectively within a broad temperature range. This feature is crucial for applications where temperature fluctuations are common, ensuring that the terminal blocks can maintain their performance in both hot and cold conditions.

Heavy-current terminal blocks are a critical component in any system that requires the management of high electrical currents. Their high current rating, durability, safety features, versatility, ease of installation, corrosion resistance, compliance with standards, customization options, broad temperature range, and cost-effectiveness make them an essential choice for a wide range of applications. By choosing heavy-current terminal blocks, industries can ensure the reliability and safety of their electrical systems, which is crucial for operational efficiency and risk mitigation.

FJ6SF-3/6-35/3x35

FJ6SF-3/6-35/3x35
Three-inlet 6-35mm², Three-outlet 6-35mm²
Order number:150828
FJ6SF-3/6-35/4x25
Three-inlet 6-35mm²,Four-outlet 6-25mm²
Order number:150829
FJ6SF-3/6-35/6x25
Three-inlet 6-35mm²,Six-outlet 6-25mm²
Order number:150830
FJ6SF-3/6-35/8x16
Three-inlet 2.5-10mm²,Eight-outlet6-16mm²
Order number:150831
FJ6SF-3/6-35/10x16
Three-inlet 6-35mm², Ten-outlet 6-16mm²
Order number:150832

FJ6SF-3/6-35/12x6
Three-inlet 6-35mm²,Twelve-outlet 6-16mm²
Order number:150833
FJ6SF-3/6-35/13x6
Three-inlet 6-35mm²,Thirteen-outlet 1.5-6mm²
Order number:150834
FJ6SF-3/6-35/14x6
Three-inlet 6-35mm²,Fourteen-outlet 1.5-6mm²
Order number:150835
FJ6SF-3/6-35/15x6
Three-inlet 6-35mm²,Fifteen-outlet1.5-6mm²
Order number:150836

FJ6SF-3/6-25/3x25

FJ6SF-3/6-25/3x25
Three-inlet 6-25mm², Three-outlet 6-25mm²
Order number:150837
FJ6SF-3/6-25/4x25
Three-inlet 6-25mm²,Four-outlet 6-25mm²
Order number:150838
FJ6SF-3/6-25/6x16
Three-inlet6-25mm²,Six-outlet 6-16mm²
Order number:150839
FJ6SF-3/6-25/9x10
Three-inlet 6-25mm²,Nine-outlet2.5-10mm²
Order number:150840
FJ6SF-3/6-25/12x6
Three-inlet 6-25mm²,Twelve-outletine-outlet1.5-6mm²
Order number:150841

FJ6SF-3/16-50/3x50

FJ6SF-3/16-50/3x50
Three-inlet 16-50mm²,Three-outlet 16-50mm²
FJ6SF-3/16-50/4x35
Three-inlet 16-50mm²,Four-outlet 6-35mm²
Order number:150843
FJ6SF-3/16-50/6x25
Three-inlet 16-50mm², Six-outlet 6-25mm²
Order number:150844
FJ6SF-3/16-50/8x25
Three-inlet 16-50mm²,Eight-outlet6-25mm²
Order number:150845
FJ6SF-3/16-50/10x16
Three-inlet 16-50mm²,Ten-outletine-outlet6-16mm²
Order number:150846

FJ6SF-3/16-50/12x16
Three-inlet 16-50mm², Three-outlet 6-16mm²
Ordernumber:150847
FJ6SF-3/16-50/15x16
Three-inlet 16-50mm², Fifteen-outlet 6-16mm²
Order number:150848
FJ6SF-3/16-50/18x10
Three-inlet 16-50mm², Six-outlet 2.5-10mm²
Order number:150849
FJ6SF-3/16-50/21x6
Three-inlet 16-50mm², Twenty-one-outlet1.5-6mm²
Ordernumber:150850

FJ6SF-4/2.5-10/4x10

FJ6SF-4/2.5-10/4x10
Four-inlet 2.5-10mm²,Four-outlet 2.5-10mm²
Order number:150851
FJ6SF-4/2.5-10/6x6
Four-inlet 2.5-10mm²,Six-outlet 1.5-6mm²
Order number:150852
FJ6SF-4/2.5-10/9x6
Four-inlet 2.5-10mm²,Nine-outlet 1.5-6mm²
Order number:150853

FJ6SF-4/6-25/4x25

FJ6SF-4/6-25/4x25
Four-inlet 6-25mm²,Four-outle 6-25mm²
Order number:150854
FJ6SF-4/6-25/6x25
Four-inlet 6-25mm²,Sixr-outlet 6-25mm²
Order number:150855
FJ6SF-4/6-25/8x16
Four-inlet 16-50mm²,Eight-outlet 6-16mm²
Order number:150856
FJ6SF-4/6-25/10x6
Four-inlet 6-25mm², Ten-outlet 1.5-6mm²
Order number:150857

FJ6SF-4/6-25/12x25
Four-inlet 6-25mm², Twelve-outle 1.5-6mm²
Order number:150858
FJ6SF-4/6-25/13x6
Four-inlet 6-25mm²,Thirteen-outlet 1.5-6mm²
Order number:150859
FJ6SF-4/6-25/14x6
Four-inlet 6-25mm²,Fourteen-outlet 1.5-6mm²
Order number:150860
FJ6SF-4/6-25/15x6
Four-inlet 6-25mm²,Fifteen-outlet 1.5-6mm²
Order number:150861

FJ6SF-4/6-25/4x25

FJ6SF-4/6-25/4x25
Four-inlet 6-25mm²,Four-outlet 6-25mm²
Order number:150862
FJ6SF-4/6-25/6x16
Four-inlet 6-25mm², Six-outlet 6-16mm²
Order number:150863
FJ6SF-4/6-25/9x10
Four-inlet6-25mm²,Nine-outlet 2.5-10mm²
Order number:150864
FJ6SF-4/6-25/12x6
Four-inlet 6-25mm², Twelve-outlet 1.5-6mm²
Order number:150865

FJ6SF-4/6-35/4x35

FJ6SF-4/6-35/4x35
Four-inlet 6-35mm²,Four-outle 6-35mm²
Order number:150866
FJ6SF-4/6-35/6x25
Four-inlet 6-35mm²,Sixr-outlet 6-25mm²
Order number:150867
FJ6SF-4/6-35/8x25
Four-inlet16-35mm²,Eight-outlet 6-25mm²
Order number:150868
FJ6SF-4/6-35/10x16
Four-inlet 6-35mm², Ten-outlet 6-16mm²
Ordernumber:150869

FJ6SF-4/6-35/12x16
Four-inlet 6-35mm², Twelve-outle 6-16mm²
Order number:150870
FJ6SF-4/6-35/15x16
Four-inlet 6-35mm²,Fifteen-outlet 6-16mm²
Order number:150871
FJ6SF-4/6-35/18x10
Four-inlet 16-35mm², Eighteen-outlet 2.5-10mm²
Order number:150872
FJ6SF-4/6-35/21x6
Four-inlet 6-35mm², Twenty-one-outlet 1.5-6mm²
Order number:150873

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Is a high-current terminal block easy to install?

The installation experience of modern high-current terminal blocks is meticulously designed to ensure safety without sacrificing efficiency:

Spring Cage Clamp: products utilize a combination of a pressure spring and a guide cone. The clamping point can be opened with a standard screwdriver, eliminating the need to fully loosen traditional screws and allowing wires to be secured in a single operation.

Modular Rail Mount: The terminal base features a standardized snap-in slot for quick engagement with common DIN rails. A spring-loaded latch provides a rigid, secure fit, significantly improving assembly efficiency within distribution cabinets.

User-Friendly Design: A transparent insulating housing allows for easy inspection of wiring status, a recessed number plate provides permanent identification, and a test jack allows measurements without disconnecting the line.

Torque Standardization: High-end products feature precise torque-indicating screws. The screw head automatically breaks when the tightening torque is reached, preventing contact resistance variations caused by overtightening or undertightening.

What wire cross-sections can high-current terminal blocks accommodate?

Wire capacity directly determines the terminal's applicable applications, primarily driven by mechanical design and thermal management requirements:

Range of coverage: Standard high-current terminals typically support wire cross-sections ranging from 16mm² to 300mm², with specialized models extending to 500mm² and above. Specific values are clearly indicated on the product specifications.

Structural Adaptability: The terminal cavity features a tapered design with internal wire stops of varying diameters, ensuring secure grip for thicker cables while preventing over-insertion of thinner wires.

Crimp Requirements: For wires exceeding 50mm², copper lugs are recommended. Terminals typically feature dual pressure points, one for compressing the wire insulation and the other for compressing the conductor.

Thermal Expansion Compensation: Some brands incorporate elastic metal washers within the clamping mechanism to maintain stable contact pressure despite thermal expansion of the conductor caused by high current.

What materials are used in high-voltage terminal blocks?

Material selection is fundamental to ensuring the insulation performance and mechanical strength of high-voltage terminals. We adhere to the principle of layered optimization in our design:

Insulation: Glass fiber-reinforced polyamide (PA66-GF25) boasts a tensile strength of 180 MPa, an insulation resistance exceeding 1013 Ω, and can withstand a long-term operating temperature of 150°C.

Conductive components: The current bars are precision-forged from electrolytic copper (Cu-ETP) and plated with thick silver (≥6 μm) or tin to ensure low contact resistance and resistance to electrochemical corrosion.

Fasteners: Screws and pressure plates are constructed from austenitic stainless steel (A2-70 standard), offering reliable anti-magnetization properties and mechanical strength.

Special treatment: In high-voltage applications (>1000V), a silicone rubber coating is applied to the insulation surface to create a composite insulation system that effectively suppresses surface arcing.

Contact Information

+86-0577-62860015

+86-0577-62860066
+86-0577-62860070
hxduele@gmail.com
Zhaoao Village, Beibaixiang Town, Yueqing City, Zhejiang Province, China

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