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Specification & Description
The Siemens 3RH1140-2AF00 is a high-quality contactor relay that serves as a crucial component in industrial control systems. Designed with precision engineering, this part is part of the SIRIUS product family, renowned for its reliability and performance in demanding environments. The contactor relay features four normally open (NO) contacts and operates with an AC control supply voltage of 110 V at both 50 and 60 Hz, making it versatile for various applications.
Constructed to offer a high degree of protection, the 3RH1140-2AF00 has an IP20 rating on the front, ensuring that it is safeguarded against solid objects. It boasts an impressive mechanical service life, with typical operating cycles up to 30 million for the contactor and 10 million when an auxiliary switch block is added. This durability translates to a longer lifespan and consistent performance, which is essential for industrial applications where uptime is critical.
The contactor relay is designed to withstand installation altitudes of up to 2000 metres above sea level and can operate within a wide temperature range, from -25°C to +60°C, ensuring reliability across various climatic conditions. Its insulation voltage is rated at 690 V with a degree of pollution 3, and it has a surge voltage resistance of 6 kV, highlighting its robustness against electrical disturbances.
With a cage clamp connection and a compact size S00, the Siemens 3RH1140-2AF00 is easy to install and integrate into existing systems, providing a seamless solution for control applications. Its design prioritises contact reliability, with a very low chance of incorrect switching operations, ensuring that your system's integrity is maintained.
Overall, the Siemens 3RH1140-2AF00 contactor relay is an essential component for professionals seeking a reliable and efficient solution for their control systems. Its robust construction, combined with its operational versatility, makes it a valuable addition to any industrial setup.
Commonly Asked Questions
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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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Frequently Asked Questions
What type of device is this Siemens contactor relay?
The Siemens contactor relay is an industrial control device used to switch a power circuit, similar to a relay except with higher current ratings. It's typically used in control panels for switching motors and other heavy loads.
Can you describe the size and connection type of this contactor relay?
This contactor relay is of size S00, which is a compact size suitable for use in space-constrained environments. It features a cage clamp connection for secure and reliable wiring.
What is the rated control supply voltage for this contactor relay?
The rated control supply voltage for this contactor relay is AC 110 V at both 50 Hz and 60 Hz, making it versatile for use in various power supply environments.
What is the insulation voltage rating for this contactor relay?
The insulation voltage rating for the 3RH1140-2AF00 contactor relay is 690 V with a degree of pollution 3, ensuring it can safely isolate the control circuit from higher voltages.
What are the ambient temperature limits for operating this contactor relay?
The ambient temperature range for operating this contactor relay is between -25°C and +60°C, which allows for its use in a variety of industrial environments.
How many NO contacts does this contactor relay have?
This contactor relay is equipped with 4 normally open (NO) contacts, which can be used to control separate circuits or combined for higher capacity control.
What is the mechanical service life of this contactor relay?
The mechanical service life of this contactor relay is typically around 30 million operating cycles, indicating its durability and reliability for long-term use.
What is the protection class of this contactor relay?
The protection class for the front of this contactor relay is IP20, which provides protection against solid objects larger than 12.5 mm but not against water.
What certifications does this contactor relay hold?
This contactor relay holds several certifications, including CSA, UL, CCC, and various marine approvals, which attest to its compliance with international safety and quality standards.
What is the significance of the contact reliability rating for this contactor relay?
The contact reliability rating indicates the likelihood of the contactor relay to perform its switching function correctly, with this model rated for one incorrect switching operation in 100 million, which is critical for applications requiring high reliability.
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.
New sealed: The product is sealed in its original packaging. It has never been opened or used, ensuring that it's in an untouched state.
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.
