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First 400 VDC coupler system according to IEC

World's first IEC TS 62735-1 standardized DC coupler system for data centre power distribution strips and UPS.

Power Distribution Units for Data center

We are a well-known provider of internationally approved IEC appliance connectors and proves itself in this market as a competent and reliable partner of connector systems for industrial equipment.

Standardized, high-quality components are required for the creation of systems in data centers. They need to support an easy and automated assembly process in order to ensure zero defect. SCHURTER is a well-known provider of internationally approved IEC appliance connectors and proves itself in this market as a competent and reliable partner of connector systems for industrial equipment.

The equipment of power supply systems have been standardized throughout the world with the aim to guarantee a high level of reliability and globally available solutions. The demands on the operational reliability of all components and materials users will appreciate. The SCHURTER offer is based on the IEC 60320 standard for globally approved products, thus guaranteeing a perfect interaction between devices plugs and sockets, regardless of the selected components.

400 VDC for Data Centers

Converting, transforming, converting, transforming – vast amounts of unused electricity simply disappear in data centers. The idea of switching the power supply to direct current and bypassing a large proportion of these losses results in a paradigm shift.

The supply of a data center using direct current has enormous potential. Not only does it offer the potential for saving energy, but also, to the same degree, savings on costs, space, resources, and time. Furthermore, the supply of renewable energy sources offers the possibility of providing electricity directly for the data center as a direct current, without additional transformation or conversion processes.

Some data centers around the world already use DC technology. In China, Japan, the USA, Germany, and also in Switzerland. However, to date, there have been no binding standards to adhere to. The IEC (International Electrotechnical Commission) has set out to create the missing link with standardized plug and socket devices according to TS 62735. The standard IEC TS 62735-1 has been adopted since August 2015 for systems up to 2.6 kW relating to the distribution of power. The standard IEC TS 62735-2 was approved in December 2016 for higher outputs of up to 5.2 kW - which can no longer be separated when under load. The device-side equivalent should also be approved in the next step.


Comparison AC vs DC architecture

The DC power architecture contains significantly fewer components than that of alternating current. According to calculations and studies by, for example, ABB, Amstein + Walthert or Stulz, by eliminating various transformations and conversions there is already an increase in efficiency of 10 % from the supply to the server. In terms of investment costs for the electrical infrastructure, one should work off the basis of a reduction of around 15 %. Less space is also required for the electrical infrastructure. In fact, considerably less. 25 % should be expected.

Fewer components are installed quicker. Fewer components are serviced faster and cause fewer errors. This makes them more reliable and therefore cheaper. Both in terms of the purchase and the maintenance. According to a study conducted by NTT (Nippon Telegraph and Telephone), the reliability is expected to increase tenfold due to the system being less complex!


The approach of providing a data center with DC voltage is obvious. If the server is already working off DC power, it makes sense to continue using it as consistently as possible throughout the chain.

Jonas Bachmann, Head Engineering SCHURTER AG


First 400 VDC coupler system

With the GP21 plug connector and the GS21 socket-outlet, SCHURTER launches the world's first UL approved IEC TS 62735-1 standardized DC coupler system designed to enable efficient DC power distribution in data centre power distribution strips and UPS.

IEC socket blocks for device installation

SCHURTER presents a particularly efficient solution for power distribution strips and uninterruptible power supplies with the prewired blocks of IEC appliance sockets of the 4751 series.

4710-5: 16A IEC appliance outlet for intelligent PDUs

With the appliance outlets of the 4710-5 series, SCHURTER launches the logical evolutionary stage to the successful 4710 - with a clear plus in functionality for status display.

Perfect load balancing in PDUs

In addition to1-phase systems, 3-phase systems are also used in many places in industry and commerce. They often offer decisive advantages. It is important to ensure safe load balancing in order to prevent overloads.

Light Pipe portfolio expanded

IEC outlets 4797-5 series are available with integrated Light Pipes. An intelligent, space and cost-saving solution for PDUs used in data centers and other multi-distributed power applications.

Evolution - Light Pipe for status display

SCHURTER is launching the series 6610-5, the logical evolution stage from the successful 6610 series, a new level of functionality is added to the industry's original outlet

V-Lock Cord Retention

V-Lock reliably prevents unintentional pulling out of the mains cable.

IEC Outlet with IDC Terminals

IEC appliance outlet 4710 with insulation displacement contact (IDC) terminals. The new outlet provides increased power ratings for heavier duty PDU applications.

Appliance Outlet 6610

SCHURTER is expanding the 6610 series with a version for conductor cross sections of 14 AWG/15 mm2. The device socket with IDC connections has proved its worth in applications such as power distribution units.

Safety is our business

Innovation and engineering

SCHURTER is a leading innovator and manufacturer of fuses, connectors, circuit breakers, input systems, and EMC products as well as a PCB assembly service provider for the electronics industry worldwide. Success for and together with our customers is our permanent incentive. We are accustomed to being innovative to meet challenges in diverse markets. We boldly realize new ideas, and we support and drive forward our R&D teams, each day anew.

Quality across the entire line

Products and services from SCHURTER meet the highest demands on quality – because SCHURTER uses quality-, environmental- and safety management systems such as ISO 9001, ISO 14001, ISO 45001, the Six Sigma method, and the EFQM Excellence Model. All products carry country-specific testing labels such as VDE, ENEC, UL, and CCC. Further, customers profit from excellent service and short delivery times thanks to a well-organized international network of Group companies and distributors.

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