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Charging cable Phoenix Contact 375 kW

20.04.2023

Phoenix Contact has unveiled its new HPC charging cable from the Charx Connect Professional family, which is said to provide safe, high power charging with a constant output of 375kW and does not require cooling.

Fast charging cables in this performance class are usually liquid-cooled, which increases the cost of the cables themselves and the required cooling unit. Until now, however, manufacturers have relied on cooling as it allows for a lower conductor cross-section and for the end user to easily move the CCS cable in the charging station.

Although Phoenix Contact has increased the conductor cross section to 4x 50 square millimetres, the company believes that the cost advantages and the elimination of a liquid-cooled cooling jacket offset the larger conductor cross section. Uncooled charging cables must operate "permanently and safely" at 375 amps, even at temperatures up to 40 degrees Celsius. Since the cable is rated up to 1000 volts, this gives a design power of up to 375 kW, even if the voltage levels of today's electric vehicles are lower.

In Boost Mode, significantly higher charging currents are possible for a short time. In any case, the CCS standard does not provide for more than 500 amps. According to the technical data overview on the main page, up to 500 amps are possible in "boost mode" "depending on ambient conditions". However, since very few electric vehicles can use 500 amps (i.e. 200 kW charging power at 400 volts mains voltage) for only a few minutes, a 375 amp DC design is sufficient in practice - and still a short-term peak of 200 kW is possible.

In addition to the cost advantage of eliminating cooling components, the new HPC cable family features four-wire measurement technology. This allows the power loss in the charging cable to be recorded so that the energy transferred to the electric vehicle can be accurately determined, which is important for reliable and appropriate billing of charging processes.

Safety should be improved by a new type of double chamber sealing system. Thus, according to the company, the spatial separation of the two DC+ and DC- power contacts "reliably prevents possible short circuits". Another advantage is said to be due to the design: with freestanding repair kits, it is possible to replace the face of the connector, including the power pins, without changing the charging cable.

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