Siemens 3RH2140-1BB40

Siemens 3RH2140-1BB40 Contactor Relay: Key Features and Specifications

The Siemens 3RH2140-1BB40 Contactor Relay is part of the SIRIUS Innovation series, designed to meet a wide range of control and automation applications. It is known for its compact size, high efficiency, and robust design, making it suitable for various industrial uses. Below is a detailed description of its features and specifications.

Compact and Efficient Design

The Siemens 3RH2140-1BB40 is categorized under the S00 size in the SIRIUS range, indicating its compact footprint, allowing easy installation even in space-constrained environments. This 4-pole contactor relay controls circuits in automation, motor switching, and electrical systems. It is equipped with screw-type terminals, ensuring secure and reliable electrical connections, and mounts easily on standard DIN rails. This not only simplifies installation but also promotes versatility across different panel configurations.

Electrical Ratings and Performance

The 3RH2140-1BB40 relay is built to handle up to 10 amps of current and operates efficiently at a voltage of 690 VAC, making it suitable for heavy-duty industrial applications. Its coil operates at a 24 VDC input, providing a reliable and consistent response for activating the relay. One of the key advantages of this model is its high dielectric strength of 6 kV, ensuring it can withstand high-voltage spikes and surges without failure. This feature significantly enhances the relay's durability and ensures long-term performance, even in demanding environments.

4 N/O Contacts and High Switching Capability

This Siemens contactor relay has four normally open (N/O) contacts, making it an efficient switching device in various applications. The 4 N/O configuration enhances flexibility by enabling the relay to manage multiple circuits simultaneously, improving operational efficiency. Additionally, the contractor consumes just 4 watts of power, contributing to energy savings and operational cost reduction. This low power requirement makes it ideal for large-scale installations with multiple relays.

Durable and Safe Operation

The Siemens 3RH2140-1BB40 is designed to operate within a temperature range of -25°C to +60°C, making it suitable for various environments. This temperature tolerance ensures reliable operation in cold and hot conditions, which is essential for industrial settings where environmental factors can vary significantly. Additionally, the relay has an IP20 rating, which provides vital protection against dust and accidental contact, ensuring a safe working environment for personnel.

Easy Installation and Maintenance

Screw-type terminals in the Siemens 3RH2140-1BB40 contactor relay are included, simplifying the installation and maintenance processes. Screw terminals offer a secure and stable connection, reducing the chances of loose wiring and ensuring reliable performance over time. The DIN rail mounting feature further enhances installation flexibility, allowing the relay to be easily integrated into existing systems without additional mounting hardware.

Warranty and Shipping

When purchased through MRO Electric and Supply, the Siemens 3RH2140-1BB40 comes with a 2-year warranty, giving users peace of mind about the product's reliability and durability. MRO Electric and Supply offers this relay with free shipping, providing additional value and convenience to customers.

Siemens 3RH2140-1BB40 Contactor Relay: Frequently Asked Questions (FAQ)

What applications is the Siemens 3RH2140-1BB40 Contactor Relay best suited for?

The Siemens 3RH2140-1BB40 is designed for industrial automation and control applications. It is particularly suitable for motor switching, managing control circuits, and operating auxiliary circuits in electrical systems. Its compact size and high voltage rating make it ideal for use in space-constrained panels while handling high-demand electrical loads.

What is the voltage and current rating of this contactor relay?

This contactor relay can handle up to 10 amps and operates with a voltage of up to 690 VAC. The coil operates on a 24 VDC input, which is ideal for low-voltage control systems. It offers consistent and reliable relay activation in demanding environments.

What does the 4 N/O contact configuration mean?

The 4 N/O (normally open) contact configuration means that the relay has four contacts that are normally open when the coil is de-energized. When the coil is energized, the contacts close, allowing current to flow through. This configuration is useful for controlling multiple circuits simultaneously, increasing efficiency and flexibility in automation systems.

What are the environmental conditions in which the Siemens 3RH2140-1BB40 can operate?

The Siemens 3RH2140-1BB40 is designed to operate at temperatures ranging from -25°C to +60 °C. This wide operating temperature range suits cold and hot industrial environments. It also has an IP20 rating, which provides essential protection against dust and accidental contact, ensuring safety in the workspace.

How does the DIN rail mounting system benefit the installation process?

The Siemens 3RH2140-1BB40 contactor relay is designed for easy installation on a DIN rail, which is a standard mounting system for electrical control equipment. This mounting method allows for fast and secure installation, making integrating the relay into control panels easier. It also simplifies maintenance and replacement, as the relay can be quickly removed and replaced without requiring additional tools.

What kind of protection does the Siemens 3RH2140-1BB40 offer against electrical surges?

This contactor relay has a dielectric strength of 6 kV, which allows it to withstand high-voltage spikes and electrical surges. This protection ensures the relay remains operational and undamaged during power fluctuations, enhancing its reliability and extending its lifespan in demanding industrial settings.

What is the power consumption of this relay?

The Siemens 3RH2140-1BB40 consumes only 4 watts of power. This low energy consumption helps reduce operating costs, making it ideal for use in large systems where multiple relays operate simultaneously.

What warranty is provided with the Siemens 3RH2140-1BB40?

The Siemens 3RH2140-1BB40 comes with a 2-year warranty when purchased through MRO Electric and Supply.

Does MRO Electric and Supply offer free shipping for this product?

MRO Electric and Supply offers free shipping for the Siemens 3RH2140-1BB40, providing customers with added convenience and value when purchasing this product.

What is the significance of the screw-type terminals?

The screw-type terminals provide a secure and reliable connection, minimizing the risk of loose or unstable wiring. This feature ensures consistent electrical contact and simplifies the installation process, making it easy for technicians to connect and disconnect the relay as needed.

Contact Us Today For More Information About Siemens Products

Check out the rest of our Siemens product line. Whether it's using our online instant quote feature, giving us a call at (800) 691-8511, or emailing us at sales@mroelectric.com, we strive for customer satisfaction first. This means lower prices and better service for you. For more products like 3RH2140-1BB40, take a look at more from our Contactors line. If your current unit has gone bad, take advantage of our Core Exchange program for the most inexpensive route. You can learn more about this program on our FAQ page here. We offer a repair service on all of our 3RH2140-1BB40 products that keep your downtime to a minimum. To stay up to date on manufacturer news, as well as access any of our datasheets, manuals, or other documentation, we suggest you take a look at our blog.