TDK’s High-voltage contactor is a hermetically sealed and gas-filled DC switch to disconnect high operating voltage (up to 1200 V DC) with high current loads (up to 500 A DC).
The technology is based on more than 80 years of experience in gas-discharge-tubes, incorporating the art of ceramic, gas and electric arcs.
The basic design consists of a moveable armature inside a hermetically sealed, gas-filled chamber. The armature is moved by an electromagnet and opens the contact to interrupt the high current. During disconnection of a high DC voltage the generation of an arc is inevitable.
HVC is designed bipolar, allowing connection independently of polarity. This is a great advantage during assembly and further allows charging and discharging of a battery without using a second contactor.
Highly accurate switching
The hermetically sealed and gas filled arc chamber, enables the clear break with very fast switching.
TDK’s HVC series switches extremely fast. While switching-off, HVC extinguishes the electric arc within milliseconds without causing electromagnetic interference. In addition this reduces the heat and abriation generated by the arc to a minimum ensuring a long life-time of the contacts.
Contactless Stuck Detection for increased control, as an option
Stuck Detection allows monitoring trouble-free switching. In case the contactor is stuck, the Aux COM and Aux NO wires will be short, hence the circuit is closed and the LED will be on (see example circuit). The Aux COM and Aux NC wires work the opposite way: the LED is off when the contactor is stuck. Stuck Detection is located at the opposite side, away from the arc-chamber to avoid influence from the main switching operation. Stuck Detection may also be known as state-control or auxiliary contact.
Integrated Temperature Sensor and Voltage Sensor as an option
Integrated temperature sensor to ensure safe operation. Loose cables or bus-bars lead to increased contact resistance and therewith increased heat. The integrated temperature sensor indicates increased temperatures on the spot, ensuring a safe-operation.
Integrated voltage sensor allows direct measurement of voltage-drop at the main contact.
> 1 mil mechanical switching cycles
CE marking, complies with EC Low Voltage Directive 2014/35/EC
All our sites are certified according the following standards: ISO 9001, IATF 16949, ISO 14001
UL 60947-4-1 certified File No: E491412
Tested in accordance with AEC Q-200, Rev. D
Up to 1200 V DC operating voltage and 500 A DC continuous current capability.