High Voltage EV Connectors: 5100+ Patents, Global Compliance

A safe high voltage connector is a fundamental electromechanical component designed to reliably and securely transmit electrical power at voltages typically exceeding 60V DC (the threshold for high voltage in automotive contexts), while incorporating multiple layers of protection to prevent electrical shock, arcing, and system failures. In electric vehicles (EVs) and charging infrastructure, where system voltages range from 400V to 800V and beyond, these connectors are not mere conduits but critical safety devices. Their design must ensure that they are touch-proof, meaning that live parts are inaccessible during handling, and that they can withstand harsh environmental conditions without degradation. JONHON is a world leader in the engineering and manufacture of safe high voltage connectors, building safety into every aspect of design and production. 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 approach to safety is comprehensive. Our connectors feature integrated High Voltage Interlock Loop (HVIL) circuits, a primary safety mechanism where a low-voltage loop runs through the connector; any separation or incomplete mating breaks this loop, signaling the system to de-energize the high-voltage circuit before the power contacts separate, preventing arcing. Our designs also incorporate robust mechanical coding and locking mechanisms to prevent mismating and accidental disconnection. The connectors are constructed with materials that provide high dielectric strength, creepage and clearance distances optimized for high voltage, and advanced shielding for electromagnetic compatibility. They are sealed to high ingress protection (IP6K9K, IPX9K) standards to prevent moisture and contaminant ingress. Furthermore, JONHON's active participation in formulating 7 IEC standards ensures our connectors meet the most stringent global safety requirements, such as those defined in IEC 61851 and IEC 62196. For automotive and infrastructure applications where human safety and system integrity are paramount, JONHON's safe high voltage connectors provide the proven, reliable solution. Please contact our engineering team to discuss your specific requirements for safe high voltage interconnection.