Terminal Screw Connector
Products Description
In B2B electrical applications such as wall switches, wire switches, molded case circuit breakers, photovoltaic fuses, and industrial control boxes, Terminal Screw Connector, as "core fasteners for electrical connections," play a crucial role in securing wires, transmitting electrical conductivity, and providing safety protection. They are essential components for external wiring in electrical equipment. Currently, the industry generally faces six major pain points: traditional screw-type terminal blocks have insufficient tightening force, easily loosening after long-term vibration or thermal expansion and contraction, leading to poor contact, sparking, or even fire; small conductive contact area, high contact resistance, resulting in significant energy loss and temperature rise; narrow wire diameter compatibility, unable to accommodate multiple wire specifications; metal components are prone to oxidation and corrosion, affecting conductivity and lifespan; installation requires repeated adjustments, resulting in low efficiency; and the lack of safety designs such as anti-misinsertion and overload protection poses a risk of electric shock and equipment damage.
Core Functions: Precisely Matches Core Electrical Connection Needs
Anti-Loosening Locking Function
Through self-locking threads and a flexible crimping structure, the wires are securely fixed, resisting loosening caused by vibration, thermal expansion and contraction, ensuring long-term stability of the electrical connection and reducing equipment maintenance frequency.
01
Low-Loss Conductivity Function
Optimized conductive contact structure and materials reduce contact loss and Joule heat during current transmission, lowering equipment energy consumption and preventing insulation aging and safety risks due to overheating.
02
Multi-Diameter Compatibility Function
Wide-range wire diameter compatible design, adapting to different wire specifications without additional accessories, simplifying equipment assembly processes, reducing procurement and inventory costs, and improving production efficiency.
03
Safety Protection Function
Insulated outer shell blocks the risk of electric shock, anti-oxidation treatment of metal Screw in Terminal Blocks prevents corrosion and heat generation, and overload protection design eliminates short circuits, leakage, and other safety hazards from the source, ensuring equipment and personnel safety.
04
Easy installation
The user-friendly Electrical Terminal Screws-locking design, along with clear wiring markings and a guide structure, allows for quick wiring and tightening without the need for specialized tools, increasing installation efficiency by 40% and reducing labor costs.
05
Technical Features
"U-shaped Pressure Wire Frame" Structure
We abandon the simple flat wire crimping design and adopt a patented "U-shaped" structure. When the Crimping Frame is tightened, the U-shaped frame contracts evenly inward, forming a 360° ring around the wire. This not only increases the contact area but also avoids the damage caused by single-point pressure on the wire in traditional flat wire crimping, achieving "non-destructive crimping."
Anti-slip Self-locking Thread Design
The thread profile is specially optimized and is not a standard triangular thread. Crimping Frame Screw Color Galvanized unique geometric angle generates enormous friction after tightening, effectively resisting loosening caused by vibration. Its anti-loosening effect far exceeds that of ordinary threads or additional spring washers.
Multi-layer Composite Surface Treatment
We offer a "composite plating" process that surpasses ordinary nickel plating. First, a dense base layer is formed on the brass surface through chemical copper/nickel immersion, followed by electrolytic nickel/chromium plating. This not only makes the surface mirror-like but also provides excellent corrosion resistance, wear resistance, and oxidation resistance, ensuring that the contact resistance does not increase even after ten years in humid or sulfur-containing environments.
The devil is in the details: In-depth analysis of professional value
Torque-Pressure-Resistance Relationship Chart
We not only provide recommended installation torques, but also showcase the unique torque-contact pressure-final contact resistance curves for our Clamp Screw for Circuit Breakers. This helps customers understand that within a certain range, even with deviations in installation torque, the connection resistance remains within an excellent range, improving process tolerance.
Microstructure Locking Technology
On the pressure contact surface, we create specific micron-level grid patterns using laser or chemical etching. This pattern engages with the wire core like gears, greatly increasing resistance to vibration loosening and pull-out, especially suitable for mobile equipment or high-vibration environments.
Integrated Temperature Indicator
Apply an irreversible thermochromic material to key areas of the junction box. When the connection point abnormally overheats beyond a set threshold (e.g., 105°C) due to loosening, corrosion, or other reasons, the color permanently changes, providing an intuitive and cost-effective on-site assessment for preventative maintenance and troubleshooting.
Pre-applied conductive paste technology
For aluminum wire connections or copper wire connections with extremely high reliability requirements, we offer Terminal Screw Combinations with a high-performance anti-oxidation conductive paste pre-applied to the contact surface. This paste evenly fills microscopic gaps during installation, eliminates air and moisture, stabilizes contact resistance, and prevents oxidation over the long term.
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