An HT (High Tension) cable connection, a term historically associated with high-voltage power transmission and distribution systems, refers to the method and components used to terminate and join high-voltage cables. In the context of modern electric vehicles (EVs) and charging infrastructure, the principles of HT cable connections are directly applicable to the high-voltage cabling that interconnects major powertrain components like the battery pack, inverter, and motor, as well as the cables used in DC fast charging stations. These connections must be engineered to safely and reliably handle high voltages (typically 400V to 1000V+), high currents, and harsh environmental conditions. The connection method—whether through crimping, compression, or bolted terminations—is critical for ensuring low electrical resistance, mechanical strength, and long-term stability. JONHON is a world-leading specialist in providing the components and engineering expertise for reliable HT cable connections in EV applications. Our product portfolio includes a wide range of high-voltage connectors, terminals, and accessories designed specifically for this purpose. With a dedicated team of over 400 engineers in our electric vehicle business unit and a portfolio of over 300 EV-related patents, JONHON's solutions for HT cable connections are engineered for excellence. We offer connectors that utilize precision crimp or compression termination techniques, ensuring a gas-tight, low-resistance connection between the cable conductor and the connector terminal. Our designs incorporate robust strain relief mechanisms to protect the connection point from mechanical stress and vibration. Safety is integrated through features like touch-proof housings and High Voltage Interlock Loop (HVIL) circuits that monitor connection integrity. The materials used, including high-grade copper alloys and advanced insulators, are chosen to withstand temperature extremes, moisture, and chemical exposure. JONHON's active participation in formulating 7 IEC standards ensures our HT cable connection solutions meet global requirements for performance and safety. For manufacturers of EVs and charging equipment, partnering with JONHON ensures access to proven, reliable technology for all high-voltage cabling needs. Please contact our engineering team to discuss your HT cable connection requirements.
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