Steel MCB Terminal Cage
Products Descriptio
In applications such as new energy power distribution systems, photovoltaic inverter output terminals, DC sides of energy storage systems, and industrial control cabinets, the electrical contact stability and mechanical fastening durability of the Steel MCB Terminal Cage directly determine the long-term operational reliability of the entire protection device. The product's design fully considers thermal cycling stress under high current density, the risk of mechanical loosening under vibration, and corrosion failure modes in humid/salt spray environments. Through optimized material selection, geometric reinforcement, and upgraded surface treatment processes, it provides engineering systems with a terminal connection solution offering full lifecycle reliability.
Key Selling Points
Pre-assembled structure, compatible with high-speed automated production lines
The screws and wire cage of the Pre-Assembled Screw Wire Terminal are pre-assembled at the factory. End users can directly complete the fastening process using an automatic screwdriver, eliminating the need for manual insertion of washers or alignment of holes, reducing assembly line cycle time, and minimizing the risk of missing or incorrect assembly.
Corrosion-resistant and conductive design for harsh operating conditions
Utilizing a steel substrate combined with a Zinc Plated Cage Terminal surface treatment. The zinc plating provides anodic protection-even if the plating is scratched during transportation or installation, the exposed steel substrate is still protected by the preferential corrosion of the surrounding zinc layer. This feature has engineering practical value in humid or slightly salty environments.
Stable clamping force and vibration resistance
The cage structure of the MCB Screw Terminal Electrical Cage Terminal generates an elastic clamping force through screw tightening, reliably pressing the wires against the inner wall of the terminal block. This structure is well adaptable to both multi-strand soft wires and single-strand hard wires, and can effectively maintain contact pressure under high-frequency vibration conditions, reducing the risk of increased contact resistance due to loosening.
Material Properties and Advantages
- Mechanical Properties: Yield strength ≥220MPa, tensile strength 340~420MPa, no permanent deformation under wire clamping pressure, and no cracking or deformation in the Cage Clamp Screw Terminal after 500 repeated assembly and disassembly cycles;
- Conductivity: Low base material resistivity, contact resistance ≤0.08mΩ for the same size, temperature rise control meets standards when high current passes through;
- Processing Adaptability: Excellent ductility, allowing for integral stamping of complex Steel Cage Screw Terminal Block structures without secondary welding, eliminating the risk of fracture due to welding stress.
- Corrosion Resistance: Completely covers the substrate surface, suitable for coastal photovoltaic energy storage and outdoor power distribution environments with high humidity and high salt content;
- Conductivity Compatibility: The zinc plating of the Zinc Plated Cage Terminal has stable conductivity and will not form an insulating oxide layer, preventing abnormal temperature rise even after long-term energization;
- Welding/Assembly Compatibility: The coating has moderate hardness, and there is no large-area peeling of the coating due to screw tightening friction. After assembly, the Electrical Cage Terminal for Terminal Zinc Plated will not generate metal debris that contaminates the internal parts of the equipment.
The entire Integrated Screw Clamp Terminal substrate and coating have undergone multiple rounds of high and low temperature, salt spray, and vibration testing. The material formula is fixed and not arbitrarily changed. Each batch of raw materials comes with a steel mill material report and an electroplating test report, eliminating equipment failures caused by fluctuations in material performance from the source.
Industry Application Cases
PV Grid-Connected Inverters
String inverters utilize this Zinc Plated Cage Terminal for internal MCB miniature circuit breaker wiring, ensuring no loose connections or excessive temperature rise issues under outdoor power station conditions.
01
Energy Storage Converters
Residential and commercial energy storage cabinets with Terminal Cage, compatible with copper-aluminum composite wire clamps, resistant to high and low temperature chamber environments.
02
Low-Voltage Distribution Combiner Boxes
Distributed PV combiner boxes with internal MCB wiring modules, meeting corrosion resistance standards in high-humidity coastal environments.
03
New Energy Vehicle DC Distribution Boxes
Zinc-Plated Steel Screw Terminal Block for locking internal wires in vehicle-mounted low-voltage circuit breakers, resisting continuous vehicle vibration.
04
Industrial Control Power Supplies
High-power switching power supplies with an internal Circuit Breaker Terminal for stable high-current continuous conduction.
05
contact us
Our engineering team can provide you with one-stop customized manufacturing and technical support solutions for Steel MCB Terminal Cages and related metal components, helping you shorten development cycles and improve mass production consistency.
Hot Tags: steel mcb terminal cage, China steel mcb terminal cage manufacturers, suppliers, factory, Circuit Breaker Terminals, Clamp Screw For Contactor, M4 Screw Terminal, Pressure Clamp Terminal Block, Screw Connector Block, Screw Lug Terminal
You Might Also Like
Send Inquiry