Siemens 3RK1903-3DA00 Power Supply Module

Description

Siemens 3RK1903-3DA00 Power Supply Module

Product Dimensions：

the Siemens 3RK1903-3DA00 is a high-quality Bus Termination Module designed specifically for the ET 200pro distributed I/O system. Its primary function is to terminate the internal backplane bus of an ET 200pro station, ensuring signal integrity and preventing data reflections.

Product Detailed Description

In an ET 200pro modular configuration, the communication bus runs through each module via the backplane. The 3RK1903-3DA00 must be plugged into the last module on the right side of the rack. Without this terminator, the communication bus remains “open,” which can lead to intermittent signal faults or a complete system failure.

Technical Parameters

Product Advantages

• High Protection Rating: With an IP67 rating, this module is designed for “cabinet-free” installation. It can be mounted directly on machinery in harsh industrial environments involving wash-downs or dust.
• Plug-and-Play: No software configuration is required. Once it is physically snapped into the last module of the ET 200pro chain, the bus is electrically balanced.
• Rugged Construction: Built to withstand high mechanical vibrations and shocks typical of automotive assembly lines and conveyor systems.
• System Stability: Effectively eliminates signal reflections at the end of the backplane bus, ensuring high-speed data transmission remains error-free.

Important Considerations (Precautions)

• Mandatory Component: An ET 200pro station will not operate without a termination module. It is a mechanical and electrical necessity for every station.
• Positioning: It must always be the last element on the right-hand side of the ET 200pro assembly.
• Seal Integrity: Ensure the module is seated correctly and the locking mechanism is engaged to maintain the IP67 waterproof seal.
• Version Compatibility: While generally universal for the ET 200pro series, always verify that the physical interface matches your specific interface module (IM) or power module.

Product Applications

The 3RK1903-3DA00 is used wherever the Siemens ET 200pro distributed I/O system is deployed:

• Automotive Industry: On-machine I/O for welding robots, paint shops, and assembly conveyors where control cabinets are minimized.
• Food & Beverage: Used in processing areas that require frequent high-pressure cleaning (wash-down zones).
• Logistics & Warehousing: Distributed control for long-distance conveyor belts and automated sorting systems.
• General Machinery: Machine tools and packaging equipment where modularity and space-saving are required.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

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