2500A Sandwich Busway

Qingdao Fenghua Electric Manufacturing Co., Ltd. manufactures premium 2500A Sandwich Busway. As a widely used medium-high current compact bus trunking, it adopts laminated sandwich insulation design, different from air insulated busway. High-purity copper conductors are clamped together with high-performance halogen-free insulating sheets. The tight lamination structure locks busbars firmly to resist huge electromagnetic force during short-circuit faults and prevent conductor deformation. Fully enclosed metal housing provides good protection against dust and moisture. Plug-in tap-off boxes can be installed on reserved positions for convenient branch power tapping. It is an ideal substitute for multiple parallel power cables, saving shaft space and reducing joint failure risks, commonly adopted in new construction, renovation and capacity expansion of industrial, commercial and IDC power distribution systems.

Product Parameter (Specification)

Product Features and Application Scope

2500A Sandwich Busway is a mainstream high-current compact bus trunking, widely selected for main incoming power distribution where large current transmission and limited installation space are required.

Core Advantages

1. Stable Operation at Full 2500A Rated Load Optimized busbar cross-section and low current density design ensures temperature rise stays within standard limit under continuous 2500A full-load operation.

2. Ultra-compact Laminated Structure Busbars and insulating layers are closely stacked, greatly reducing overall size and saving valuable space in power shafts and distribution rooms.

3. Superior Short-circuit Dynamic & Thermal Stability Tight sandwich clamping structure firmly restrains conductors, resisting strong electromagnetic impact during short-circuit and avoiding busbar displacement or deformation.

4. Low Impedance & Reduced Voltage Drop High-purity plated copper bars minimize impedance and contact loss, lowering power consumption and stabilizing power quality under 2500A heavy load.

5. Flexible Plug-in Tap-off Design Tap-off boxes can be mounted at preset positions along the trunk, convenient for branch power supply and later capacity expansion.

6. Complete Modular Accessories Supplied with elbows, tees, expansion joints, end closures and transition joints for connecting transformers and LV switchgears.

Application Scenarios Data center main incoming trunk, commercial complex vertical power trunk, heavy factory main distribution, substation 0.4kV interconnection, industrial park power renovation and expansion.

Production Details and Craftsmanship

Qingdao Fenghua Electric adopts professional lamination process for 2500A Sandwich Busway. Copper conductors are precision cut and surface tin-plated or silver-plated. High-temperature halogen-free insulating films are sandwiched between each phase busbar. The laminated assembly is clamped and enclosed in rigid alloy housing with anti-corrosion coating. Every bus segment undergoes insulation resistance test, power frequency withstand voltage test, temperature rise test at 2500A and short-circuit simulation test before shipment. We accept third-party witness inspection and non-standard customized transition terminals for EPC projects.

Why Choose Qingdao Fenghua Electric

1. Mature 2500A Sandwich Busway Manufacturing We have rich production experience for 2500A compact bus duct, fully familiar with full-load temperature rise and short-circuit testing requirements.

2. Strict Full-load Quality Verification Each batch is verified for temperature rise under 2500A rated load to eliminate overheating risk for heavy-load projects.

3. Full Range of Matching Accessories Complete prefabricated fittings for direction change, thermal expansion compensation and terminal transition.

4. Full-cycle Engineering Technical Service Provide load calculation, short-circuit check, routing optimization, on-site installation guidance and acceptance support.

5. Complete Type Test Reports & Certificates Supply full set of type test reports, engineering drawings and certificates required for tendering and project handover.

Conclusion

Qingdao Fenghua Electric Manufacturing Co., Ltd. provides high-performance 2500A Sandwich Busway. With compact size, low impedance and reliable full-load performance, it is one of the most popular high-current trunking solutions for 0.4kV heavy power distribution projects. We welcome bulk procurement, drawing customization and tender cooperation with global EPC contractors and project owners.