Siemens 3RK1903-0AA00 Power Module Terminal – Genuine Siemens Spare Part, EAN 4011209385962, Made in Poland

Description

Technical Specifications

Main Features and Advantages

The Siemens 3RK1903-0AA00​ offers a compelling combination of OEM authenticity, electrical integrity, and practical installability that makes it the definitive choice for PM-D power module servicing. As a genuine Siemens-manufactured component, the Siemens 3RK1903-0AA00​ guarantees 100% mechanical and electrical compatibility with the PM-D power module, eliminating the risks associated with third-party or counterfeit alternatives that may compromise the safety and performance of the entire motor control assembly.Precision power distribution for U1/U2 potential groups:The core competency of the Siemens 3RK1903-0AA00​ lies in its ability to deliver clean, stable potential group infeed to terminals U1 and U2 of the PM-D power module. With a 24 V DC rating and 10 A current capacity, the Siemens 3RK1903-0AA00​ handles the power distribution demands of industrial motor starters with margin to spare. The 500 V insulation rating provides an additional safety buffer, ensuring reliable isolation even under transient voltage conditions.Space-efficient DIN rail design:The Siemens 3RK1903-0AA00​ occupies a mere 15 mm of mounting width on the DIN rail, allowing control cabinet designers to maximize density without sacrificing accessibility. Its compact form factor (117.5 mm × 15 mm × 102 mm) integrates seamlessly alongside other ET 200S components, maintaining the orderly, modular appearance that Siemens control panels are known for. The lightweight 0.22 kg construction reduces strain on DIN rail supports and simplifies handling during installation.Versatile conductor accommodation:Supporting solid conductors from 0.14 to 2.5 mm² and finely stranded wires from 0.14 to 1.5 mm² (AWG 18–22), the Siemens 3RK1903-0AA00​ adapts to a wide range of field wiring practices. This flexibility ensures that electricians can use locally available cable sizes without special ordering, accelerating commissioning timelines.IP20 protection and industrial robustness:With IP20 ingress protection, the Siemens 3RK1903-0AA00​ safeguards internal contacts from finger contact and solid objects larger than 12 mm, meeting standard control cabinet environmental requirements. Manufactured in Poland under Siemens’s quality management system, each Siemens 3RK1903-0AA00​ unit delivers the durability expected from a globally trusted automation brand.Clear migration pathway:While the Siemens 3RK1903-0AA00​ remains available as an official spare part, Siemens provides a well-defined modernization route to the ET 200SP system with compact motor starter modules. This means that customers procuring the Siemens 3RK1903-0AA00​ today can maintain their existing assets while planning a future-proof migration strategy with full vendor support.

Application Field

The Siemens 3RK1903-0AA00​ finds its primary application within motor control and drive systems built around the Siemens PM-D power module, particularly in legacy SIMATIC ET 200S configurations. In manufacturing plants operating conveyor systems, pump stations, compressor houses, and material handling equipment, the Siemens 3RK1903-0AA00​ serves as the essential U1/U2 potential group infeed interface that powers contactor and starter logic. Its role is to ensure that the PM-D module—which controls motor start/stop, direction, and protection functions—receives stable, correctly polarized control power.Within the automotive industry, the Siemens 3RK1903-0AA00​ is deployed in body shop robotic cells, powertrain assembly lines, and paint shop conveyor drives, where the reliability of every single connection translates directly into production uptime. Food and beverage processing facilities rely on the Siemens 3RK1903-0AA00​ to maintain their bottle fillers, packaging machines, and refrigeration compressor starters, benefiting from its IP20-rated enclosure that withstands the humid, washdown-adjacent environments typical of processing floors.In water and wastewater treatment plants, the Siemens 3RK1903-0AA00​ supports blower motors, lift station pumps, and clarifier drives, where continuous operation is critical and unplanned downtime carries significant environmental and regulatory consequences. The mining and metals sector employs the Siemens 3RK1903-0AA00​ in crusher drives, conveyor belt starters, and cooling fan circuits, valuing its rugged Siemens construction for harsh, vibration-prone environments.Beyond initial installations, the Siemens 3RK1903-0AA00​ has become a sought-after spare part for maintenance, repair, and overhaul programs across all these industries. As plants extend the life of their ET 200S-based automation systems rather than undertaking costly full replacements, the availability of genuine Siemens 3RK1903-0AA00​ units becomes a strategic advantage. For system integrators and MRO specialists, stocking the Siemens 3RK1903-0AA00​ means being able to respond rapidly to emergency breakdowns, minimizing costly production stoppages and reinforcing the long-term value of Siemens automation investments.