Products Description
The Terminal Block Hand Screw is a composite connector pre-assembled from a metal stamped frame and threaded fasteners. It is primarily used inside circuit breakers, contactors, and relays, serving as the physical interface for introducing external wires and establishing a reliable electrical connection with the internal copper busbar. It solves the problem of loose "wire-to-terminal" connections in electrical equipment by converting mechanical force into electrical contact force, ensuring low contact resistance even under complex operating conditions such as vibration and thermal cycling.
Technical Advantages
Uniform dimensions for wide compatibility
Utilizing standardized production processes, the Wire Clamp Terminal with Screw boasts high dimensional consistency and strong adaptability, compatible with various brands of electrical equipment.
01
Precision threaded installation for secure mounting
The Pre-Assembled Screw Wire Terminal features threads machined using a rolling process, resulting in a full tooth profile, smooth fit, and reduced risk of stripping during installation, thus lowering the installation error rate.
02
Durable galvanized protection
The uniform galvanized coating provides stable corrosion resistance. Compared to ordinary products, the Cage Clamp Screw Terminal has a longer service life and lower long-term operating costs.
03
Cost-saving through repeated disassembly and reassembly.
The product can be repeatedly disassembled and reassembled, adapting to equipment maintenance and modification needs without frequent parts replacement, reducing procurement costs.
04
Detailed Display and Structural Disassembly
Frame Structure
The U-shaped frame has a bottom thickness ≥0.8mm, and the side wall bending radius R ≥0.5mm to avoid stress concentration; the cage-like frame has rounded corners for smooth wire insertion without jamming.
Screw Precision
The threaded section of the pre-Assembled Screw Clamp Terminal is roll-formed, resulting in a complete tooth profile, a surface roughness Ra ≤1.6μm, and stable tightening torque, preventing over-tightening or under-tightening.
Pre-fitted gap design
The screw heads of the Pre-Fitted Screw Terminal Clamp have a 0.5-1.0mm gap between them and the upper surface of the frame, providing ample space for wire insertion and high assembly efficiency.
Optimized contact surface
The inner wall of the Integrated Screw Clamp Terminal's frame has a flat or slightly curved contact area with the wires, increasing the effective contact area and reducing contact resistance and localized heat generation.
OEM/ODM customization services are supported. The specifications, surface treatments, and other parameters of the Galvanized Steel Screw Terminal Clamp can be adjusted to meet customer needs.
Factory direct pricing, high cost-performance ratio, tiered pricing available based on order volume for Steel Cage Screw Terminal Blocks.
Contact Screw Wire Clamp Terminal lead time is stable, with 7-15 days for regular orders and negotiable for customized orders.
Free Circuit Breaker Screw Clamp Terminal samples are available for customer testing; sample specifications can be selected according to customer needs.
contact us
If you are looking for a fully certified, reliable, and cost-effective Terminal Block Hand Screw supplier for your circuit breaker, contactor, or fuse project, please feel free to contact our purchasing team for a quote and samples. We not only provide standard specifications but also excel at flexible customization based on your procurement plans and quality requirements-from relay metal parts to various electrical connection components, we offer one-stop production. We look forward to your inquiries and let our reliable supply chain capabilities help you reduce costs and increase efficiency for your project.
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