Crimping Frame Screw Color Galvanized
Products Description
In modern electrical connection systems, the stability of wire connections directly affects the overall safety and long-term operational reliability. Especially under high-frequency insertion/removal, vibration environments, temperature rise conditions, and long-term energization, ordinary screw connections are prone to uneven crimping, wire damage, and increased contact resistance.
The emergence of Crimping Frame Screw Color Galvanized is essentially a structural optimization of traditional wiring methods.
Through the integrated design of "screw + wire clamping frame," the wiring force is more evenly distributed, effectively improving:
Wire clamping stability
Conductor contact area
Installation consistency
Vibration resistance
Long-term conductivity reliability
Automatic assembly adaptability
Therefore, this product has gradually become the standardized connection structure in wall switches, MCBs, MCCBs, fuses, terminal blocks, and new energy electrical components.
Production Process Flow: Meticulous Craftsmanship in Every Step
Materials Selection
Strict selection of high-purity alloy steel and premium copper/steel strip raw materials.
01
Forming
Cold heading of the Screw Connector Block, stamping, and bending of the frame.
02
Heat Treatment
Controlled carburizing depth to enhance surface hardness while preserving core toughness for the Screw Block Terminal.
03
Surface Treatment (Color Zinc Plating)
Environmentally friendly electroplating process, passing a salt spray test for ≥72 hours (higher specifications available upon customization), providing superior chemical protection.
04
Pre-assembly
Automated assembly with 100% drop force testing.
05
Detailed Showcase: Quality That Withstands Magnifying Glass Examination
Screw Head Under Microscopic View
The Phillips/slotted Electrical Screw Terminal head is precisely milled, with a smooth, burr-free bottom. This ensures a high degree of bit insertion and prevents slippage, guaranteeing precision for tens of thousands of tightening cycles on the production line.
Wire Clamping Frame Inner Wall
Close observation of the wire clamping frame's inner wall reveals a specially designed fine anti-slip texture. This texture gently engages the wire surface during tightening, significantly increasing the wire's pull-out force without damaging the wire itself.
Zinc Film Color
It exhibits a uniform, dense iridescent color, a direct reflection of the passivation film's thickness and density, meeting standards. This ensures Screw Clamp Type Terminals withstands the corrosive effects of salt spray testing, resisting the ravages of time.
Pre-Assembled Smoothness
A light touch of the Screw on Terminals reveals a smooth, damped rotation within the frame, indicating a perfect balance of tolerances-no jamming or play.
Application Advantages
| Wall Switches and Wiring Switches | Inside switch sockets in residential and commercial buildings, the wire clamp screws achieve a reliable connection of live, neutral, and ground wires with a compact structure. Their color-galvanized coating provides long-lasting corrosion protection in humid wall environments, and the pre-assembled form allows for direct use by switch manufacturers' automated production lines, reducing manual screw insertion. |
| Molded Case Circuit Breakers (MCCBs) | Circuit breaker terminals need to withstand short-circuit current surges and long-term rated current-carrying capacity. The large contact area and low contact resistance of the frame-type clamp structure keep the temperature rise of the circuit breaker within standard limits at rated current; the color-galvanized screws resist corrosion from oil, moisture, and chemical gases in the industrial environment of distribution cabinets. |
| Photovoltaic Fuses and Combiner Systems | The high voltage (1000V DC to 1500V DC) and harsh outdoor environments of photovoltaic DC systems place extremely high demands on wiring reliability. The robust mechanical locking capability of the Clamp Type Terminal Blocks prevents terminal burn-out caused by DC arcing; the UV resistance and salt spray resistance of the color zinc coating ensure long-term stability in coastal or desert photovoltaic power plants. |
| Industrial Control Cabinets and Distribution Panels | In PLC cabinets, frequency converter cabinets, and power distribution boxes, Circuit Breaker Terminals serve as universal fastening units, compatible with various terminal blocks, connecting pieces, and grounding bars. Their pre-assembled nature supports customers implementing a VMI (Vendor Managed Inventory) model, allowing production lines to use them in sets, simplifying BOM management. |
contact us
For electrical equipment manufacturers who prioritize long-term stable supply, assembly consistency, and engineering adaptability, we can provide C45 Circuit Breaker Screw Terminal connection solutions that are more suitable for automated production and long-term project support. Welcome to visit our inquiry page to obtain engineering support and sample solutions.
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