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Specification & Description
The Siemens 3UG4512-1BR20 is a sophisticated analogue monitoring relay designed for meticulous network monitoring, particularly in the detection of phase failure and sequence issues. This relay operates with a voltage range of 160 to 690 V AC and is compatible with 50 to 60 Hz AC power systems, making it versatile for a broad spectrum of industrial applications.
Crafted with precision, the 3UG4512-1BR20 features two change-over contacts and employs screw terminal connections for secure and reliable wiring. Its compact dimensions, 22.5 x 91 x 92 mm, allow for efficient use of space within electrical cabinets.
The relay is equipped with an LED display that provides clear indication of operational status, enhancing ease of monitoring and diagnostics. It is also designed to withstand challenging industrial environments, with a robust construction that offers an insulation voltage resistance rated at 690 V for overvoltage category III and a degree of pollution 3, ensuring durability and long-term performance.
The 3UG4512-1BR20 is the successor to previous models 3UG3513-1BL50 or 3UG3513-1PB50, offering enhanced features and improved functionality. Its design is focused on ensuring consistent and reliable operation, with a protection class of IP20 and resistance to shock and surge voltages, making it a reliable choice for safeguarding critical electrical systems against phase-related anomalies.
This monitoring relay is an essential component for industrial settings where precise voltage monitoring is crucial, such as manufacturing plants, processing facilities, and other applications where electrical supply integrity is paramount.
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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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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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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Frequently Asked Questions
What is the purpose of an analogue monitoring relay?
An analogue monitoring relay is used to continuously monitor and protect electrical equipment from phase failure, phase sequence errors, and other voltage-related issues. It ensures the stability and reliability of the electrical system.
Can this relay detect both phase failure and phase sequence?
Yes, the Siemens 3UG4512-1BR20 is designed to detect phase failure and phase sequence to protect motors and other equipment from damage due to incorrect phasing.
What voltage range can this relay monitor?
The relay is capable of monitoring a voltage range from 160 to 690 V AC, making it suitable for a wide range of industrial applications.
What are the dimensions of this relay?
The dimensions of the relay are 22.5 mm in width, 91 mm in depth, and 92 mm in height, which conforms to standard DIN rail mounting sizes.
What type of contacts does this relay have?
This relay is equipped with 2 change-over contacts, which allows it to switch between two different control circuits.
Is there a specific mounting position required for this relay?
The relay can be mounted in any position, offering flexibility in installation within control panels or equipment.
What is the ambient temperature range for operating this relay?
The relay can operate within an ambient temperature range of -25 to +60 degrees Celsius, ensuring reliable performance in various environmental conditions.
Does this relay have LED indicators?
Yes, it comes with LED indicators that provide visual confirmation of the relay's status and help with troubleshooting.
What type of terminal connections does this relay use?
The relay utilises screw-type terminals for secure and reliable electrical connections.
How does this relay contribute to system safety?
By monitoring for phase failures and incorrect phase sequence, the relay helps prevent potential damage to electrical equipment, reducing downtime and maintenance costs.
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.
