High Current Red Copper Bushing

Designing for High-Current Applications

When current exceeds 100A, every milliohm of resistance matters. Zenko factory's High Current Red Copper Bushing made in China is engineered with thicker walls, larger cross-sections, and precision-machined surfaces to handle sustained high-current loads without overheating. The T2 purple copper construction delivers conductivity of ≥98% IACS, minimizing power loss and temperature rise under load.

In high-current busbar connections, the contact interface is the most critical point. A poorly machined bushing creates micro-gaps that increase contact resistance and lead to hot spots. Our CNC precision machining ensures that every High Current Red Copper Bushing has a smooth, flat contact surface that mates perfectly with busbars, terminals, and cable lugs—eliminating high-resistance interfaces before they can form.

Thermal Management in High-Current Systems

Heat is the enemy of high-current systems. As current flows, resistive heating raises the temperature of every component in the current path. As a professional manufacturer in China, Zenko's High Current Red Copper Bushing is designed with thermal performance in mind. The high-purity purple copper provides excellent thermal conductivity (≥385 W/m·K), efficiently transferring heat away from the connection point to the surrounding structure.

For applications exceeding 300A continuous current, we recommend our heavy-duty series with increased wall thickness and optimized surface area for heat dissipation. Each High Current Red Copper Bushing in this series is individually tested for dimensional accuracy and surface quality before shipment. This attention to detail is why power engineers worldwide trust Zenko for their most demanding high-current interconnection projects.

Applications That Demand More

EV fast-charging stations, battery energy storage systems (BESS), industrial power distribution panels, and uninterruptible power supplies (UPS) all require robust high-current interconnections. The High Current Red Copper Bushing from Zenko is validated for use in these applications, with proven performance in systems carrying 200A to 600A continuous current.

Unlike standard copper bushings that may work for signal or low-current applications, our high-current series is specifically engineered for the thermal and mechanical demands of power systems. Zenko offers full customization for unique high-current applications—whether you need a special inner diameter for a large-gauge cable, a custom length to fit your busbar arrangement, or a specific surface treatment for your operating environment.

Quality You Can Measure

Every High Current Red Copper Bushing , Zenko's factory operates under ISO 9001 quality management, and our testing includes conductivity verification, dimensional measurement, and surface quality inspection. For high-current applications where failure is not an option, this level of traceability and quality assurance matters.

Whether you are designing the next generation of EV charging infrastructure or upgrading an industrial power distribution system, the High Current Red Copper Bushing delivers the performance, reliability, and customizability you need. Contact our engineering team today to discuss your high-current interconnection requirements.

Request a Quotation

Send your drawings or specifications to Zenko for a fast, competitive quotation. Samples available upon request.

Non-Insulated Butt connector （Sizes can be customized）
							Material:Red Copper(C1220/TP2)
ITEN NO.	Dimension(mm)						Cable Size
	L	D	d1	W	W1	F	mm2	A.W.G
2.75D	8.5	4	1.8	2.75	3.47	4
3.35D	8.5	4.5	2.3	3.35	3.8	4.5
4.05D	8.5	5.2	2.7	4.05	4.45	5.2
4.55D	11	6.65	3.4	4.55	5.45	6
5.6D	11	7	3.6	5.6	6.02	6
3.4D	8.5	4.4	2.1	3.38	3.8	5.2
1.9D	7.2	3	2.5	1.9	2.4	4.5
4.1D	10.5	4.8	2.5	3.98	4.45	5.6
Plating	Tin plating, nickel plating, surface anti-oxidation
Hardness and State	M / Y / Y2 （HV45-75/ 90-110/ 110-130)
Remark:	Accept custom orders of any size