3RK1301-1DB00-0AA2 SIEMENS

3RK1301-1DB00-0AA2 Siemens Basis unit

Brand：SIEMENS Model number：3RK1301-1DB00-0AA2

Country of origin: Germany Product weight：0.55kg

HS code：8517623990

Product Details：

Product Dimensions：

The 3RK1301-1DB00-0AA2 is engineered as a decentralized motor starter that combines switching, electronic motor protection, and communication capabilities into a single, high-protection-rated housing. Operating within the ECOFAST system concept, it utilizes standardized power and data connections, which drastically cuts installation time. The unit features solid-state switching elements for soft starting and soft stopping of three-phase asynchronous motors, which minimizes mechanical wear on belts, gears, and bearings. It communicates status and receives control override commands through an integrated interface, typically paired with standard industrial fieldbuses via ECOFAST-compatible bus modules.

Product Parameters

Product Brand Name: SIRIUS
Product Designation: ECOFAST Motor Starter (Direct-On-Line / Soft Starter)
Operating Voltage: $400 \text{ VAC}$ nominal (three-phase system voltage)
Control Supply Voltage: $24 \text{ VDC}$ for the internal control logic and electronic circuits
Rated Operational Current: Up to $5.5 \text{ A}$ (typically suited for small to medium three-phase motors up to approximately $2.2 \text{ kW}$ or $3.0 \text{ HP}$ at $400 \text{ V}$ )
Trip Class: Class 10A electronic overload protection
Protection Class: IP65 rating, indicating complete protection against dust ingress and resistance to low-pressure water jets from any direction
Connection Type: ECOFAST standardized plug-in connectors for both power supply and communication line loops
Switching Technology: Solid-state thyristors for soft start ramping paired with internal bypass contacts for energy-efficient steady-state operation

Product Advantages

A primary benefit of the 3RK1301-1DB00-0AA2 is its Decentralized System Architecture. By moving the starter out of the control cabinet and directly onto the plant floor, cabinet space is maximized, and thermal loads inside control rooms are reduced. The Plug-and-Play ECOFAST Interface eliminates traditional point-to-point wiring errors and drastically reduces initial commissioning and field replacement times.

The Solid-State Soft Start Functionality reduces the starting current spikes on the grid and eliminates the mechanical shock associated with traditional across-the-line starting methods. Furthermore, the unit features Comprehensive Electronic Protection, which continuously monitors for phase asymmetry, overcurrent, and thermal overload without requiring separate external evaluation relays.

Important Considerations and Precautions

When deploying the 3RK1301-1DB00-0AA2, it is vital to ensure that the Plug Connectors are Fully Seated and locked before applying main $400 \text{ VAC}$ power; failing to secure the connectors can lead to electrical arcing and damage to the pin contacts. Because this unit is solid-state, it generates a small amount of heat during the acceleration phase, meaning Adequate Clearance Around the Heat Sink must be maintained even in open-air environments.

The Maximum Current Limit ( $5.5 \text{ A}$ ) must never be exceeded; check the motor's nameplate full-load amps (FLA), accounting for any service factors, to ensure complete compatibility. Additionally, while the IP65 housing protects against moisture, avoid directing high-pressure washdown streams directly at the connector seals during cleaning cycles. Lastly, configuration of the Overload Dial Settings must accurately reflect the motor's actual rating to ensure the electronic trip curve functions correctly and prevents motor burnout.

Product Applications

The Siemens 3RK1301-1DB00-0AA2 is widely chosen for modular, sprawling industrial layouts where centralized wiring would be cost-prohibitive.

Conveyor Systems: Managing the smooth acceleration and deceleration of belt systems, roller tracks, and sorting lines in logistics hubs and airports.
Automotive Assembly Lines: Powering auxiliary transport systems, lifting tables, and positioning fixtures along the production line.
Packaging Production: Controlling indexing motors, wrapping machines, and automated palletizing units.
Material Handling: Used in overhead cranes, gantry systems, and automated transfer cars where decentralized control keeps cabling minimal.
Air Handling and Pumps: Soft starting small fan arrays and centrifugal pumps in industrial environments to prevent water hammer and pressure surges.

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