Siemens 3RK1922-2BA00 Backplane Bus Module – 110 mm Rear Panel Bus for ET 200pro Motor Starters at 400 V

Description

Technical Specifications

Main Features and Advantages

Engineered for Seamless ET 200pro IntegrationThe Siemens 3RK1922-2BA00​ is purpose-built to serve as the interconnection backbone for ET 200pro motor starter assemblies. By providing a unified 110 mm backplane bus, the module enables effortless daisy-chaining of motor starter modules, isolator switch modules, and ASM disconnecting modules—creating a tidy, organized, and highly maintainable motor control cluster.Reliable Power and Signal Distribution at 400 VRated for 400 V operation, the Siemens 3RK1922-2BA00​ ensures robust power transfer and signal continuity between connected ET 200pro devices. This high-voltage capability makes it ideally suited for three-phase motor control applications found in heavy industrial settings, where dependable power distribution is non-negotiable.Compact and Lightweight DesignWith a length of just 110 mm and a net weight of only 0.242 kg, the Siemens 3RK1922-2BA00​ delivers maximum functionality in a minimal footprint. Its compact form factor allows engineers to build space-efficient motor control cabinets without sacrificing modular expandability. Despite its lightweight construction, the module’s mechanical integrity ensures secure mating with adjacent ET 200pro components, resisting loosening under vibration and thermal cycling.Enhanced Safety with Finger-Safe ConstructionThe Siemens 3RK1922-2BA00​ features an IP00 degree of protection with a front panel design that satisfies the touch-protection requirements of IEC 60529. This finger-safe construction safeguards technicians during installation, inspection, and maintenance activities, reducing the risk of accidental contact with live 400 V conductors.Wide Operating Temperature ToleranceDesigned for industrial durability, the Siemens 3RK1922-2BA00​ operates reliably across a temperature range of −25 °C to +55 °C and withstands storage extremes from −40 °C to +70 °C. This broad thermal tolerance ensures consistent performance in environments ranging from climate-controlled factories to semi-exposed industrial zones.Simplified Maintenance and Modular ReplacementThe modular architecture enabled by the Siemens 3RK1922-2BA00​ allows individual ET 200pro components to be replaced without rewiring the entire assembly. In the event of a module fault, maintenance teams can quickly swap the affected device while the Siemens 3RK1922-2BA00​ remains in place, dramatically reducing mean-time-to-repair (MTTR) and keeping production lines running.Proven Siemens Quality and AvailabilityAs an active product in Siemens’ portfolio with a PM300 lifecycle status and a short 3-day lead time, the Siemens 3RK1922-2BA00​ offers peace of mind in terms of long-term supply security. Full RoHS compliance and Siemens’ rigorous manufacturing standards guarantee an environmentally responsible, high-quality component that integrates seamlessly into modern automation projects.

Application Field

The Siemens 3RK1922-2BA00​ finds extensive application across a wide spectrum of industrial automation scenarios where reliable motor control and distributed I/O are essential. In manufacturing plants, the module serves as a key enabler for modular motor starter assemblies that drive conveyor belts, robotic workcells, and automated production lines. By linking ET 200pro motor starter modules through the Siemens 3RK1922-2BA00, engineering teams can create compact, scalable motor control stations that occupy minimal cabinet space while delivering maximum functionality.Material handling systems represent another major application area for the Siemens 3RK1922-2BA00. In distribution centers, baggage handling facilities, and port logistics operations, the module supports the interconnection of numerous motor starters that control rollers, lifts, turntables, and sortation equipment. The 400 V rating of the Siemens 3RK1922-2BA00​ ensures compatibility with the three-phase motors prevalent in these high-throughput applications, while its robust construction withstands the continuous-duty cycles typical of 24/7 logistics operations.Process automation plants—including those in the chemical, pharmaceutical, food & beverage, and water treatment industries—rely on the Siemens 3RK1922-2BA00​ to build safety-integrated motor control assemblies. When combined with ET 200pro isolator switch modules and ASM disconnecting modules, the Siemens 3K1922-2BA00​ forms the backbone of maintenance-friendly motor control clusters that facilitate safe isolation during servicing, ensuring compliance with workplace safety regulations.In the automotive sector, the Siemens 3RK1922-2BA00​ is widely deployed in body shops, paint shops, and powertrain assembly lines, where hundreds of motors must be coordinated with precision. The modular nature of the ET 200pro system, facilitated by the Siemens 3RK1922-2BA00, allows automakers to reconfigure production cells rapidly in response to changing model mixes or process optimizations.Heavy machinery and infrastructure projects also benefit significantly from the Siemens 3RK1922-2BA00. Pump stations, compressor houses, and ventilation systems in mining, oil & gas, and building automation applications utilize the module to create robust, serviceable motor control assemblies capable of operating in challenging environmental conditions. Across all these diverse sectors, the Siemens 3RK1922-2BA00​ consistently demonstrates its value as a reliable, cost-effective solution for building modular, maintainable, and future-proof motor control architectures.