High-voltage contactor

See table on page 8

Gas-filled contactor for high-voltage DC switching

HVC43 series

PPD AB PD / PPD AB PM

Version: 01 / 2021-05-04

Please read Cautions and warnings and

Page 9 of 12

Important notes at the end of this document.

Cautions and warnings



To guarantee a satisfying performance of this contactor in the application we strongly recommend

to implement redundancy, take measures to prevent the spread of fire, take the possibilities of

malfunction into account, and perform regular maintenance.



It is also required to always use a suitable backup fuse for the contactor.



It is not allowed to use the contactor outside of the parameter range specified in this datasheet.

This also includes temperature and humidity. Overloading the contactor may destroy the

component.



The lifetime is dependent on several factors: e.g. load type, driving circuit and ambient conditions.

We recommend checking the performance of the part under actual conditions.



For capacitive loads, the inrush current through the contactor should not exceed the specified

limit of the estimated make & break life curves, otherwise tack welding and permanent failure will

occur.



Break of inductive loads with τ > 1 ms will shorten the lifetime and failure may occur.



In the event of a break under inductive load, the voltage at the connection terminals of the

contactor must not exceed the nominal operating voltage by more than 10 %.



For continuous high current operation, make sure that the temperatures of the connection

terminals do not exceed 120 °C by selecting an appropriate connection cable cross section or

active cooling.



The leads to the contactor must be securely tightened to the terminals (check torque specification

in data sheet) otherwise current stress may generate sparks and heating. Use only suitable

screws for all mechanical connections to the contactor and verify their functionality in the

application.



After long-term operation the contactor coil resistance is increased due to the temperature rise. If

the contactor is switched on immediately afterwards, the coil characteristics may be deteriorated.



The coil contacts need to be protected from overvoltage when switching off. Therefore, a

protection device needs to be installed in parallel.



For successful pick-up, the voltage cannot be ramped up slowly. The voltage needs to be applied

instantly to at least the maximum pick-up voltage.



The contactor is not intended to be used with pulse width modulation (PWM) controllers. Please

contact TDK for details.



Simultaneously applied maximum operation parameters for e.g. coil voltage, over currents,

temperature, vibration etc. may lead to reduced lifetime. We recommend applying rated settings

to achieve optimum life performance.



For parts without plus or minus marking at the main HV contacts (e.g. no polarity of main

contacts), the service life curves are estimated based on the requirements of IEC60947-4-1;

Chapter 8.2.4 where 50% of the required operations are performed in positive direction and 50%

in negative direction.



For additional safety, the contactor must be mounted in a way that the vertical axis of the part (Z-

axis) is not in line with the main shock axis inside the application.

Still, it must be mounted either upright standing or horizontal lying on either side.

Overhead mounting must be avoided and only the original mounting holes are allowed to be used

to mount the part.



Contactors radiate magnetic and electromagnetic fields. Please ensure that other components

mounted in close proximity are not affected.