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3UG4512-1BR20
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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.
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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.
