Industry news--Karmin Electronic (HK) Limited

TDK introduces 1000 V and 1500 V high-voltage contactors for electric vehicles (xEVs), DC fast charging, and AI data center infrastructure
2026-10-29

TDK Corporation (Tokyo Stock Exchange code: 6762) has launched the HVC28 and HVC29 series gas filled high-voltage DC contactors. These two series of components can be equipped with mechanical auxiliary contacts and both cover models with rated continuous currents of 300 A, 400 A, 500 A, and 600 A. Among them, HVC28 is mainly aimed at automotive systems with a maximum DC operating voltage of 1000 V and high short-circuit current requirements; HVC29 is designed specifically for industrial power systems with DC operating voltages up to 1500 V.

The continuous current capability of HVC28 can reach up to 600 A, withstand a short-circuit current of 16 kA for 5 ms, and pass the specified resistance load test. It can cut off a maximum DC current of 1600 A and a maximum DC voltage of 1000 V in a single action, making it particularly suitable for battery disconnect units, high-voltage junction boxes, main motor drive battery systems, commercial vehicles, and DC fast charging stations in electric vehicles (xEV).

HVC29 can handle working voltages up to 1500 V and continuous currents up to 600 A, and can withstand short-circuit currents of 6 kA for 5 ms. Typical industrial applications include energy storage systems, solid-state transformers, uninterruptible power supplies, and DC fast charging stations. These contactors also support the upcoming new generation 800 VDC power supply architecture for AI data centers.

Both series use gas filled ceramic arc extinguishing chambers, which can quickly and reliably cut off direct current. The non-polar main terminal design supports bidirectional conductivity, meeting the application requirements of bidirectional flow of electrical energy; Integrated connectors can simplify low-voltage connections and system installation.

If mechanical linkage feedback is required for the main contact status, normally closed mirror contacts can also be selected as needed. This auxiliary contact meets the IEC 60947-4-1 standard and can determine the open/close status of the main contact, supporting switch status monitoring applications in safety related automotive and industrial systems.

Features and Applications

Main applications

HVC28

Battery disconnect unit and high-voltage junction box
Host control drive battery system for passenger and commercial vehicles
Electric Vehicle (xEV) High Voltage Power System
DC fast charging station

HVC29

Energy Storage System
Solid state transformer
Uninterruptible Power Supply
AI Data Center Power System
DC fast charging station

Main features and advantages

The product model covers a continuous current range of 300 A to 600 A
Maximum DC operating voltage: HVC28 is 1000 V; HVC29 is 1500 V
HVC28 can withstand a short-circuit current of 16 kA for 5 ms
Optional normally closed mirror contacts that meet the IEC 60947-4-1 standard
Gas filled ceramic arc extinguishing chamber for fast and reliable current interruption
Non polarized main terminal design, supporting bidirectional current
Integrated connector for easy installation
Provide 12V and 24V single coil versions
Working temperature range: -40 ° C to+85 ° C
Compliant with RoHS requirements

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