
High voltage DC contactor integrates mirror contact
TDK has launched two high voltage contactors, one with an integrated mirror contact and the other with enhanced short-circuit current handling.
Both support high reliability switching up to 1000V DC for lithium-ion batteries in traction applications, energy storage systems (ESS) and DC charging stations.
With an integrated mirror contact according to the IEC 60947-4-1 standard, 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 beats the typical capability of 8 to 10 kA. This is aimed at modern high-energy-density batteries that can achieve higher short-circuit currents. The contactor can handle continuous currents up to 300 A with a maximum cut-off rating of 900 A at 1000 V (DC) and 2200 A at 450 V.
Both series use TDK’s 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.
