Push-in connectors for modular power and industrial applications

New push-in connection technologies and high-current modules expand the modular connector portfolio for industrial applications with a focus on faster installation, higher power density, and flexible integration into energy and automation systems.

Tool-free push-in connection technology for field installation
Push-in technology enables tool-free quick connection of conductors and contacts in industrial connectors. In field applications, this concept reduces installation effort because smaller-diameter conductors only require a ferrule before being inserted directly into the contact chamber. No crimping tool is required.

For disassembly, the conductor can be removed without damage. By activating a mechanism with a screwdriver, the spring is released and the conductor can be withdrawn. This process simplifies maintenance and retrofit operations in industrial environments.

New Domino modules for compact power connections
HARTING is expanding the Han-Modular^® series with the Han^® Domino EE Push-in connector insert rated at 16 A and the Han^® Domino CC Push-in version rated at 40 A. Both variants are designed for applications in the low- to medium-voltage and power range.

Typical application areas include mechanical engineering, power distribution systems, converters for photovoltaic installations, and battery cabinets. The miniaturized module design enables more compact applications, while increased power density contributes to lower overall system costs.

The push-in technology supports different conductor types, including stranded conductors, solid conductors, and ferrule-equipped wires. According to the manufacturer, assembly time can be reduced by up to 30 percent through direct conductor insertion into the contact chamber. At the same time, the installation footprint can be reduced by up to 50 percent compared with conventional connection solutions.

High-current modules for battery-electric rail vehicles
The new Han-Modular^® 400 A module has been developed for railway applications. The module supports applications in battery-electric trains with ratings up to 1500 V and 400 A and is suitable for both AC and DC systems.

The contacts feature IP20 touch protection to reduce risks associated with electrical discharge, for example during battery connection procedures. The module supports conductor cross-sections up to 185 mm², addressing the increasing demand for higher currents and larger cable sizes in energy storage systems.

Integration of power and data transmission
A key characteristic of the modular connector concept is the integration of multiple transmission types within a single hinged frame. In addition to high-current contacts, supplementary modules for data and signal transmission can also be integrated.

This enables functions such as temperature monitoring and condition monitoring to be incorporated into a centralized interface. The concept supports applications in intelligent power distribution and industrial automation environments within a modular Industrial IoT architecture.

Applications in power distribution and battery systems
The expansion of the Han-Modular^® platform addresses applications with increasing requirements for power density, flexibility, and serviceability. In particular, battery storage systems and electrical power distribution infrastructures require modular interfaces capable of combining high-current transmission with data communication.

With a portfolio of more than 100 connector modules, the system supports multiple configurations for power, signal, and data transmission within a single connector interface.

Additional Context: technical specifications and competitive benchmarking not included in the original announcement
In the market segment for modular industrial connectors, manufacturers such as Phoenix Contact, TE Connectivity, and Weidmüller offer comparable push-in and high-current solutions. Push-in technologies are increasingly adopted to reduce installation times and minimize errors during field assembly.

In the high-current segment, comparable systems support currents ranging from 350 A to 500 A for applications including energy storage, charging infrastructure, and electric drive systems. Key differentiators typically include maximum supported conductor cross-sections, protection ratings, modularity, and the integration of additional data and signal modules.

The presented solution is differentiated primarily through the combination of push-in connection technology, modular integration of power and data transmission, and support for high-current applications up to 1500 V/400 A within a unified connector platform.

Edited by Maria Brueva, Induportals editor – adapted by AI.

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