Secure plug-in connections for modular battery storage


Secure plug-in connections for modular battery storage

The sustainable use of renewable energies such as wind or sun can only be achieved through energy storage modules, since these enable time-delayed, needs-based use. The use of connectors accelerates the build-up of energy storage modules using lithium-ion cells.

With its More about Han® S series, HARTING offers secure connection technology for modular battery storage systems. The compact and flexible housings accommodate contacts for currents up to 200 A and 1500 V. The series’ bulkhead housings can be flexibly rotated through 360 degrees, and the locking of hoods and housings, male and female contacts is intuitive.

Safe and error-free installation


The Han® S offers users plug-in connections for storage modules while providing maximum safety, since the design meets all technical requirements. The male contact for the battery module is designed to be finger safe and is equipped with a screw contour with an M8 thread. The contact can be installed on the battery module in a user-friendly manner with a socket spanner. The socket contact is crimped onto the cable and then inserted and screwed into the sleeve housing without tools.

Experience the new Han® S


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Harting’s use of the colour red for plus and black for minus, with additional mechanical coding, prevents the interfaces from being mixed up.

Time savings in service and maintenance


There is a red variant of the More about Han® S for the positive terminal and a black variant for the negative terminal. Both are also mechanically coded to prevent incorrect insertion. These properties are also beneficial for service and maintenance.

If a cell in an energy storage module shows a drop in performance, the respective management system can be used to switch it off and have it replaced. To do so, the Han® S interfaces of the adjacent modules are simply turned aside in the locked state to make room for the switch-out. There is no need to interrupt the energy storage functions of unaffected modules.

Compliance with all relevant UL standards


More about Han® S is the first special high-current battery connector that meets the relevant UL and railway standards for stationary energy storage systems. Among others, it fulfils the requirements of UL 4128 for connectors in electrochemical battery system applications, UL 1973 for batteries in stationary applications, for emergency power supply for vehicles and in light rail applications, and UL 9540 for energy storage systems and accessories. Han® S is also shock and vibration proof according to the relevant railway standards.

A battery management module (BMS) is located in each modular storage module or storage cabinet. These units also need to be connected to form a control train. Here, the HARTING More about Han® Shas added a bulkhead mounted housing with a busbar pin contact, once again in a red and black version. The system is managed via this train and the decentralised BMS transmit status messages to the higher-level system/plant control.

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Han® S busbar pin contact

Your benefits at a glance:


  • Error-free connections through an effective mechanical coding system

  • Safe installations assured by visual locking control and finger protected contacts

  • Easy & fast assembly and disassembly over contact screwing from the front

  • High flexibility over different mounting possibilities with 360° positioning for cable entry and contact terminations

  • Complies with all relevant UL energy storage standards (UL1973, UL9540, UL4128)

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HARTING is immensely important to us because we can rely on the company‘s many years of experience in the field of connectors and power distribution. We get very high performance out of our modules, and we need a competent partner for this, who stands by our side. With the help of the products of HARTING we can ensure that the connection from our product to downstream products is always compatible.

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Michael Schnakenberg

CEO, Commeo GmbH

Catalogues, Brochures, Flyer


Application Story: Battery systems for the industry using Han-Modular
Application Story: Battery systems for the industry using Han-Modular
.pdf - 1.9 MB
Han® S Brochure
Han® S Brochure
.pdf - 1.3 MB

Product Sample Request


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