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Specification & Description
The Siemens 3RB3143-4XB0 is a high-performance solid-state overload relay designed to provide reliable motor protection. This advanced relay is part of the SIRIUS series and is engineered to safeguard motors with a current range of 32 to 115 A. It features a robust design suitable for various industrial applications, ensuring optimal performance and longevity.
The 3RB3143-4XB0 overload relay is equipped with both manual and automatic reset functions, offering flexibility in operation. It supports contactor mounting, making it easy to integrate into existing systems. The relay includes screw-type terminals for secure and straightforward connections in both the main and auxiliary circuits.
This relay is designed to operate efficiently under a wide range of environmental conditions, with an operational temperature range of -25 to +60 °C and a storage temperature range of -40 to +80 °C. It also boasts a high degree of protection with an IP20 rating on the front, ensuring durability and resistance to dust and other contaminants.
The Siemens 3RB3143-4XB0 overload relay features adjustable trip classes (5E, 10E, 20E, and 30E), allowing for precise customization to meet specific application requirements. It also includes integrated ground fault detection, enhancing the safety and reliability of motor operations.
With its compact dimensions (106 mm height, 70 mm width, and 124 mm depth), the 3RB3143-4XB0 is designed to fit seamlessly into various control panels and enclosures. Its high surge voltage resistance of 8 kV and robust construction make it a dependable choice for protecting motors in demanding industrial environments.
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Frequently Asked Questions
What is the primary function of this part?
The primary function of this part is to act as an overload relay, providing protection for motors by preventing overheating and potential damage.
What is the adjustable current range for this overload relay?
The adjustable current range for this overload relay is 32 to 115 A.
What type of mounting does this overload relay support?
This overload relay supports contactor mounting.
What are the dimensions of this overload relay?
The dimensions of this overload relay are 106 mm in height, 70 mm in width, and 124 mm in depth.
What is the rated operating voltage for this overload relay?
The rated operating voltage for this overload relay is up to 1,000 V.
What type of terminals does this overload relay use for the main and auxiliary circuits?
This overload relay uses screw-type terminals for both the main and auxiliary circuits.
What is the protection class of this overload relay?
The protection class of this overload relay is IP20 on the front, according to IEC 60529.
Can this overload relay be used in hazardous locations?
Yes, this overload relay is suitable for use in hazardous locations and complies with ATEX directive 2014/34/EU.
What is the maximum installation altitude for this overload relay?
The maximum installation altitude for this overload relay is 2,000 meters above sea level.
What is the ambient temperature range for operating this overload relay?
The ambient temperature range for operating this overload relay is -25 to +60 °C.
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.
