ABB Low Voltage Secures Patent for Modular Surge Protective Device Design
Time:2026-10-29 Browse: 2
Beijing, China – October 29, 2026
Beijing ABB Low Voltage Electrical Appliance Co., Ltd. has secured a utility model patent for a modular surge protective device (SPD), according to the patent information provided by the China National Intellectual Property Administration (CNIPA). The patent, titled “Modular Surge Protective Device,” carries publication number CN224909085U, with an application date of October 2025.
The patented design focuses on a modular structure that integrates a surge protection module, a backup protection module, and a lower base module. The design aims to simplify assembly and make installation in power supply circuits more convenient, offering a potential improvement in the structural integration of low-voltage electrical protection equipment.
Modular Architecture Simplifies Device Assembly
According to the patent abstract, the surge protective device consists of three primary components:
Surge protection module: Provides the surge protection function within the device.
Backup protection module: Disconnects the surge protection module from the power supply circuit when required.
Lower base module: Features a tray-shaped main body on which the surge protection and backup protection modules can be detachably mounted.
The detachable mounting arrangement is a key feature of the patented structure. By organizing the main functional components into a modular assembly, the design is intended to simplify the overall construction and make the device easier to assemble.
The patent abstract also states that the complete device can be installed in a power supply circuit as an integrated unit. This approach may help simplify installation procedures and reduce the number of connection points within the power distribution system.
Potential Benefits for Low-Voltage Power Distribution
Surge protective devices are used in electrical installations to help protect connected equipment against transient overvoltages caused by events such as lightning-induced surges and switching operations. They are relevant to a wide range of low-voltage distribution applications, including industrial control cabinets, commercial buildings, and electrical equipment installations.
For these applications, device structure and installation requirements can influence panel layout, wiring complexity, and maintenance accessibility.
The modular design described in the patent addresses several practical considerations:
Simplified installation: The surge protection and backup protection modules can be mounted on a common base, allowing the assembled device to be installed as a unit.
Reduced connection complexity: The patent identifies a reduction in the number of equipment connection points as a design objective. Fewer connection points may help simplify system integration, although actual results depend on the final implementation.
More efficient assembly: A modular component arrangement can make the assembly process more straightforward by providing defined mounting positions for the principal modules.
Space-conscious design: Integrating the modules into a common assembly may help reduce the space required in electrical installations. The actual footprint and space savings would need to be confirmed from product specifications.
These are potential structural and installation benefits described or implied by the patented design, rather than independently verified performance results for a commercial product.
Relevance to Industrial Automation and Electrical Equipment
Reliable power distribution is an important consideration in industrial automation systems, where electrical disturbances can affect control equipment, instrumentation, and other connected devices. Surge protection is one part of a broader electrical protection strategy.
For system integrators and electrical panel builders, a modular surge protective device may offer practical advantages when designing compact distribution assemblies or standardizing equipment installation procedures. Its suitability for a particular application, however, depends on electrical ratings, protection characteristics, installation conditions, and applicable standards.
The patent does not, by itself, establish specific surge current ratings, voltage protection levels, response times, certification status, or compatibility with particular industrial control systems. These parameters should be verified against the relevant product documentation before equipment selection.
ABB's Continued Work in Low-Voltage Electrical Protection
Beijing ABB Low Voltage Electrical Appliance Co., Ltd. develops and supplies low-voltage distribution products, including miniature circuit breakers, residual current circuit breakers, isolating switches, relays, surge protective devices, and related electrical accessories.
The newly reported patent reflects continued technical development in the low-voltage protection field, with a focus on component integration, assembly convenience, and installation efficiency.
As industrial facilities and commercial electrical installations place increasing emphasis on compact panel design and maintainable protection systems, modular construction remains a relevant engineering approach. Whether this patented design will be incorporated into a marketed product, and when such a product might become available, has not been established by the patent information cited here.
For industrial equipment buyers, electrical engineers, and system integrators, the patent provides a useful indication of design activity in the surge protection sector. Product selection should continue to be based on verified technical specifications, application requirements, and relevant compliance documentation.
