Siemens 3RK1903-2AA00 PEN Terminal Block Module

Description

Siemens 3RK1903-2AA00 PEN Terminal Block Module

Product Dimensions：

The Siemens 3RK1903-2AA00 is a specialized control and connection interface accessory within the SIRIUS industrial controls family. It is primarily used as a connection module / plug-in interface block for Siemens motor starters, frequency converters, and ET 200 distributed I/O motor control systems (such as the ET 200pro / ET 200S motor starter units).

Product Detailed Description

The 3RK1903-2AA00 serves as a heavy-duty connection module that facilitates fast, error-free wiring of power and control signals to distributed motor starters. It allows for modular installation on field-mounted drive units, enabling pre-wired cable assemblies to be plugged directly into the starter housing without opening the main enclosure.

Technical Specifications

Product Advantages

• Tool-Less Hot-Swapping & Quick Replacement: Enables rapid swapping of motor starter units during maintenance without re-wiring individual terminal blocks, significantly cutting downtime.
• High Protection Rating: Designed for direct cabinet-free field mounting with robust IP65/IP67 ingress protection against dust, dirt, and water jets.
• Foolproof Keying: Features mechanical coding to prevent accidental misconnections or reverse polarity during installation.
• Space-Saving Design: Integrates power feed, motor connection, and control wiring into a single compact housing.

Important Considerations & Warnings

• Mating Compatibility: Ensure the module is mated exclusively with designated Siemens SIRIUS motor starter bases (such as ET 200pro / ET 200S motor starter chassis).
• De-energize Before Plugging: Always disconnect the main power line before inserting or removing the connection module to avoid arcing or damage to the contact pins.
• Gasket & Seal Inspection: Verify that the rubber sealing gaskets are clean and undamaged prior to mounting to maintain the IP65/IP67 enclosure rating.
• Tightening Torque: Respect specified screw tightening torques on the internal terminals to ensure low contact resistance and prevent thermal hotspots.

Product Applications

• Conveyor Systems & Material Handling: Used on decentralized motor starters along logistics sorting lines, airport baggage handling, and packaging lines.
• Automotive Assembly: Facilitates modular power distribution for field-mounted motor control units across body shops and paint lines.
• Decentralized Machine Control: Ideal for cabinet-free automation where motor starters are mounted directly on machine frames.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

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