3RK1903-3DA00 SIEMENS Controller module

Description

3RK1903-3DA00 SIEMENS Controller module

Product Dimensions：

Product Description

The Siemens 3RK1903-3DA00 is a specialized Power Module designed for the SIMATIC ET 200pro distributed I/O system. This module serves as the primary power connection point, facilitating the distribution of 400V AC power to subsequent motor starter modules within the ET 200pro station. It is engineered with a robust IP65/67 protection rating, making it suitable for cabinet-free installation directly on the machine. The module includes an integrated disconnect function and features standardized Han Q4/2 plug-in connections for rapid, error-free power bus wiring.

Product Parameters

Product Type: Power Module for ET 200pro Rated Operating Voltage: 400V AC (3-phase) Operating Voltage Range: 200V to 480V AC Rated Current: 40A Frequency: 50/60 Hz Protection Class: IP65 / IP67 (Dust-tight and water-resistant) Connection Type: Han Q4/2 (Power bus) Ambient Temperature Range: -25°C to +55°C (Operation) Dimensions: 110mm (Width) x 130mm (Height) x 150mm (Depth) Weight: Approximately 1.1 kg

Advantages

The 3RK1903-3DA00 significantly reduces installation time through its modular, plug-and-play design, which eliminates the need for complex internal cabinet wiring. Its high IP67 rating allows for decentralized automation architectures, placing the power distribution closer to the actuators and reducing cable lengths. The module is built for high mechanical durability and vibration resistance, ensuring long-term reliability in harsh industrial environments. Additionally, the integrated Han Q4/2 interface provides a standardized and secure connection that prevents accidental polarity reversal or wiring errors.

Precautions

Before installation or maintenance, ensure that the upstream power supply is completely de-energized and locked out. The module must be mounted on a compatible ET 200pro rack or baseplate to ensure structural integrity and proper grounding. It is essential to use only genuine Siemens Han Q4/2 connectors and high-quality shielded cables to maintain the IP65/67 protection rating. Do not exceed the rated 40A current capacity, as overloading the power bus can lead to overheating and damage to the module or adjacent motor starters.

Applications

This power module is extensively used in large-scale conveyor systems and automated assembly lines in the automotive industry. It is also found in packaging machinery and bottling plants where wash-down capabilities (IP67) are required. In material handling environments, it serves as the central power feed for distributed motor control systems, allowing for efficient management of multiple drive units across a wide floor area without the need for large, centralized control cabinets.

Shipping Port: Xiamen, China

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