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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RK1303-6BS74-3AA3 |
| Alternative Part Number | 3RK13036BS743AA3 |
| Manufacturer | Siemens |
| Product Type | PROFIBUS DP Electronic Switching |
| Operating Voltage Range | 400 to 500 V ac |
| Current Range | 0.3 to 3 A |
| Communication Protocol | PROFIBUS DP Protocol |
| Dimensions | 133 x 122 x 257 mm |
| Design | Reversing starter |
| Bus-Communication | Yes |
| Outlet for Engine Brake | Yes |
| Control Circuit Voltage Type | DC |
| Control Supply Voltage (DC) | Rated value: 20.4 V minimum to 28.8 V maximum |
| Motor Protection | Full motor protection |
| Switching Contact Design | Solid-state |
| Short-Circuit Protection Design | Fuse |
| Service Power at AC-3, 400 V | Rated value: 1,100 W |
| Service Power for Three-Phase Motors | 0.14 kW minimum to 1.1 kW maximum at 400 V, 50 Hz |
| Adjustable Response Current | Initial value: 0.3 A to final value: 3 A |
| Breaking Capacity Limit | Short-circuit current (lcu) at 400 V rated value: 100 kA |
| Electrical Connection | Tab terminals |
| Protection Class | IP65 |
| Ambient Operating Temperature | -20 to +40 °C |
| Approvals | General Product Approval, Declaration of Conformity, Type Test Certificates/Test Report, other |
| Additional Features | 4DI 24 V DC, Brake contact 400 V AC/0.75 A, HAN Q4/2 - HAN 1NC |
The Siemens 3RK1303-6BS74-3AA3 is a sophisticated PROFIBUS DP electronic switching device designed to offer reliable and efficient control for industrial applications. This reversing starter is engineered to provide full motor protection and electronic as well as thermal overload protection for three-phase motors with operating voltages ranging from 400 to 500 V ac and a service power at AC-3 at 400 V rated at 1.1 kW.
With an adjustable response current from 0.3 to 3 A, the device ensures precise protection for a wide range of motor sizes. The inclusion of a brake contact rated at 400 V ac/0.75 A adds versatility, allowing for rapid stopping of motors when necessary. The unit also features four digital inputs and one binary output for comprehensive control and feedback.
The solid-state design of the switching contact ensures durability and a long service life, while the fuse-based short-circuit protection provides peace of mind against electrical faults. The device's tab terminals facilitate straightforward electrical connections, and with an IP65 protection class, it is well-suited for use in demanding environments where dust and moisture resistance are paramount.
Measuring 130 mm in width, 250 mm in height, and 125 mm in depth, the Siemens 3RK1303-6BS74-3AA3 is compact enough to fit into various control cabinets and panels. It operates efficiently within an ambient temperature range of -20 to +40 °C, making it a robust choice for a wide array of industrial settings.
This electronic switching device is a testament to Siemens' commitment to quality, offering a reliable solution for motor control and protection in industrial automation systems.
Commonly Asked Questions
Is my order covered by a warranty?
Marvo provides a full 12-month warranty on all products, whatever the condition. For your peace of mind, all parts are ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. If you are unhappy with the part(s) you received and would like to request a return, you can do so by completing our quick and easy online form. Once we have received your Returns Request, a member of the team will be in touch to discuss this further with you. You can read more about our warranty policy here.
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Read more...Is Marvo a credible parts supplier?
Marvo is a highly credible supplier of industrial automation parts and components with dedicated hubs around the world offering industry-leading products and services. Marvo is committed to providing a quick, easy and reliable place to source your automation and control components. All purchases come as standard with a comprehensive 12-month return to base warranty meaning that, in just a few clicks, you can source critical parts more seamlessly than ever before. Click here to read an article on how Marvo is redefining convenience for automation and manufacturing professionals.
Read more...Have steps been taken to ensure quality control?
Marvo takes pride in product quality and has put several measures in place to assure high levels of quality standards. For your peace of mind, all parts have been ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. Redefine convenience and secure priority delivery on all parts along with a comprehensive 12-month warranty. This is the smart new way to buy automation and control components.
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Our service to you
Lightning-Fast Express Shipping: Receive your order in record time with our express shipping options, ensuring you minimize downtime and keep your projects on track.
No-Risk Returns, Guaranteed: Return your parts anytime for a full refund. Our hassle-free return policy ensures you’re never stuck with something you don’t need.
Clear Pricing with No Hidden Fees: What you see is what you pay, transparent pricing with no extra costs, ever. Rest assured, all taxes and fees are already included in your final price.
Rock-Solid Reliability at a Fraction of the Cost: Get pre-owned electronic parts that are fully tested for peak performance, saving you money without compromising on quality, backed by a comprehensive warranty.
Frequently Asked Questions
What is the voltage range for the ECOFAST Electronic Switching?
The ECOFAST Electronic Switching operates within a voltage range of 400 to 500 V ac.
Can this device be used with PROFIBUS DP protocol?
Yes, the ECOFAST Electronic Switching supports PROFIBUS DP protocol for bus communication.
What are the dimensions of this electronic switching device?
The dimensions of the ECOFAST Electronic Switching are 133 mm in width, 122 mm in height, and 257 mm in depth.
What type of motor protection does the ECOFAST provide?
The ECOFAST provides full motor protection to ensure safe and reliable operation.
What is the range of the adjustable response current for the overload release?
The adjustable response current for the overload release ranges from 0.3 A to 3 A.
What is the breaking capacity limit for short-circuit current?
The breaking capacity limit for short-circuit current is rated at 100 kA at 400 V.
What type of electrical connection is used for the main current circuit?
The main current circuit uses tab terminals for its electrical connection.
What is the protection class of the ECOFAST Electronic Switching?
The ECOFAST Electronic Switching is rated at protection class IP65.
What is the ambient operating temperature range for this device?
The ambient operating temperature range for the ECOFAST Electronic Switching is from -20°C to +40°C.
Are there any certifications or approvals for the ECOFAST Electronic Switching?
The ECOFAST Electronic Switching comes with a general product approval and a Declaration of Conformity.
Part conditions explained
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New unsealed: The product is in its original packaging, but the packaging has been opened or unsealed. It has never been used and should be in near pristine condition.
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New unboxed: The product does not come in its original packaging, but it has never been used and is in great working condition.
Refurbished: The product has been previously used, but it has undergone a thorough refurbishment process to restore it to a like-new or functional condition. Any defects or issues have been addressed, making it suitable for reuse.
Used: The product has been previously owned and has been used. It may show signs of wear and tear but is still functional and operational. The condition may vary depending on the specific item and its usage history.
