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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RH1911-1FA40 |
| Alternative Part Number | 3RH19111FA40 |
| Manufacturer | Siemens |
| Product Type | Auxiliary Switch Block |
| Rated Insulation Voltage | 690 V ac |
| Rated Operational Voltage | 600 V dc |
| Number of Contacts | 4 Normally Open (NO) |
| Contact Configuration | DIN EN50005 standard |
| Electrical Durability | 200,000 switching cycles at AC-15, 230 V typical |
| Mechanical Service Life | 10 million switching cycles typical |
| Operating Current | 10 A at 24 V and 230 V in AC-12 |
| Mounting Type | Snap-on mounting |
| Width | 36.5 mm |
| Height | 37.5 mm |
| Depth | 41.5 mm |
| Connection Type | Screw-type terminals |
| Compatible Conductor Cross-Section | 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²) for finely stranded wires with core end processing |
| Ambient Operating Temperature | -25 °C to +60 °C during operation |
| Storage Temperature | -55 °C to +80 °C |
| Protection Class | IP20 on the front |
| Compliance | Mirror contact and positively driven operation according to IEC standards |
The Siemens 3RH1911-1FA40 is a high-quality auxiliary switch block designed for seamless integration with contactor relays and power contactors. This component is essential for users looking to expand the functionality of their control systems with additional switching capabilities. With a configuration of 4 normally open (NO) contacts, it adheres to the DIN EN50005 standard, ensuring compatibility and reliability in a variety of industrial applications.
Crafted for durability, the 3RH1911-1FA40 boasts an impressive mechanical service life of 10 million switching cycles, and an electrical endurance of 200,000 cycles at AC-15 at 230V, which speaks to its robustness and longevity in demanding operational conditions. The switch block operates efficiently within an ambient temperature range of -25 to +60°C, making it suitable for a wide range of environments.
Safety is a priority with this component, as it features an insulation voltage rated at 690V and a surge voltage resistance of 6kV, providing peace of mind in the protection of your electrical systems. The switch block's compact design, with snap-on mounting, allows for easy installation and maintenance, ensuring minimal downtime and enhanced productivity.
The 3RH1911-1FA40 is a testament to Siemens' commitment to quality and innovation, offering a reliable solution for those seeking to enhance their control systems with a switch block that promises consistent performance and safety.
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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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.
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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.
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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 rating for this auxiliary switch block?
The auxiliary switch block is rated for 690 V ac and 600 V dc.
Can this auxiliary switch block be used with motor contactors?
Yes, it is suitable for use with contactor relays and motor contactors for switching motors.
What is the protection class of this auxiliary switch block?
The protection class for the front of the auxiliary switch block is IP20.
What are the ambient temperature limits for operating this auxiliary switch block?
The ambient temperature range for operation is from -25°C to +60°C, and for storage, it's from -55°C to +80°C.
How many normally open (NO) contacts does this auxiliary switch block have?
This auxiliary switch block has 4 normally open (NO) contacts.
What is the mechanical service life of this auxiliary switch block?
The mechanical service life is typically 10 million switching cycles.
What is the electrical endurance of this auxiliary switch block at AC-15, 230 V?
The electrical endurance at AC-15, 230 V is typically 200,000 switching cycles.
What type of connection does this auxiliary switch block support?
It supports screw-type terminal connections.
What are the dimensions of this auxiliary switch block?
The dimensions are 36.5 mm in width, 37.5 mm in height, and 41.5 mm in depth.
Does this auxiliary switch block have mirror contact functionality?
Yes, it has mirror contact functionality according to IEC 60947-4-1 when used with 3RT1 contactors.
Is the auxiliary switch block positively driven according to IEC 60947-5-1?
Yes, it is positively driven according to IEC 60947-5-1 when used with 3RH1 contactor relays.
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.
