TDK Corporation (TSE:6762) announces two new additions to its high-voltage contactor portfolio for harsh environments: the HVC43MC with integrated mirror contact and the HVC45 with enhanced short-circuit current handling capability. These new contactors for up to 1000 V (DC) enable reliable switching of lithium-ion batteries in traction applications, energy storage systems (ESS), and DC charging stations. These components underscore TDK’s dedication to enabling the transition to a greener, more electrified future.

With an integrated mirror contact according to IEC 60947-4-1, the HVC43MC enables safe detection of the main contact's position. This mechanically linked auxiliary contact provides reliable feedback about whether the main contact has opened or closed, enhancing system safety monitoring. The contactor can handle continuous currents up to 250 A and cut-off currents up to 450 A at 1000 V (DC) and 2000 A at 450 V (DC), respectively, all in a compact package measuring 74.5 x 78 x 40.5 mm.

With a short-circuit current handling capability of up to 12 kA for 5 ms, the HVC45 sets an industry benchmark, surpassing conventional solutions in its size class that typically achieve 8 to 10 kA. This enhanced capability addresses the requirements of modern high-energy-density batteries that can achieve higher short-circuit currents. The contactor can handle continuous currents up to 300 A and features a maximum cut-off rating of 900 A at 1000 V (DC) and 2200 A at 450 V (DC), respectively.

Both series incorporate TDK's proven gas-filled ceramic arc chamber technology and bidirectional switching capability, allowing current flow in both directions. The contactors are available with 12-V or 24-V coil voltages and are certified to CE, UKCA, and UL standards, supporting worldwide deployment.

TDK Corporation (TSE:6762) presents HVC27 (B88269X*), its new generation of high-voltage contactors that can safely and reliably switch off continuous DC currents of 300 A to 500 A and operating DC voltages of up to 1000 V in lithium-ion batteries in 20 ms or less, depending on the type. This is made possible by the gas-filled ceramic arc chamber which is also used in the other HVC types from TDK. Completely new is the optional Hall-effect sensor for the auxiliary contact. It is used to detect the switching state of the main contacts. The bidirectional design allows only one HVC27 to charge and discharge batteries as well as to power motor drive systems and do regenerative braking (recuperation).

The necessary change to environmentally friendly use of energy leads to the high demand for high-voltage and high-current DC applications.
TDK offers the High-Voltage Contactors (HVC) series which meet the requirements for High-Voltage DC emergency disconnection applications up to 600 A in electric cars, trucks, busses and DC fast chargers.
HVC series features excellent extinguishing characteristics in combination with a bipolar design for charging and discharging.