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Specification & Description
The Siemens 3UG4511-2BP20 is a sophisticated analog monitoring relay designed for phase sequence monitoring across three phases with voltage ranges between 320 to 500 V AC at 50 to 60 Hz. This relay is an integral component of the SIRIUS product family, renowned for its reliability and precision in industrial applications.
Crafted with a compact design, the relay boasts a width of just 22.5 mm, making it an ideal choice for space-constrained environments. Its spring-type connection system ensures a secure and maintenance-free electrical connection, which is crucial for consistent performance in demanding settings.
The 3UG4511-2BP20 is equipped with two change-over contacts, providing flexibility in control circuit design and allowing for integration into a variety of control schemes. The relay's LED display offers immediate visual feedback on the operational status, enhancing ease of monitoring and diagnostics.
Engineered to withstand challenging industrial conditions, the relay can operate at installation altitudes up to 2000 meters above sea level and within a broad ambient temperature range from -25 to +60 °C. Its robust construction ensures resistance to shock and vibration, complying with international standards such as IEC 60068-2-27 and IEC 60068-2-6.
This monitoring relay is particularly suitable for applications where phase sequence and integrity are critical for the operation of machinery and equipment. Its ability to detect phase sequence ensures that motors and other three-phase loads operate correctly, safeguarding against potential damage caused by phase reversal.
The Siemens 3UG4511-2BP20 is a testament to Siemens' commitment to quality and innovation, providing a reliable solution for industrial automation and control systems. Its combination of advanced features and durable design makes it a valuable asset for maintaining operational efficiency and protecting valuable equipment.
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Frequently Asked Questions
What is the function of this analog monitoring relay?
The analog monitoring relay is designed for phase sequence monitoring, ensuring that the phases are in the correct order which is crucial for the protection of three-phase equipment.
Can this relay be used in any mounting position?
Yes, the relay is versatile and can be mounted in any position to suit various installation requirements.
What type of connection system does the relay have?
The relay features a spring-type connection system, which allows for quick and secure connections.
What is the voltage range for phase sequence monitoring?
The relay monitors phase sequence within a voltage range of 320 to 500 V AC at 50 to 60 Hz.
How many change-over contacts does the relay have?
The relay is equipped with 2 change-over contacts.
What is the ambient temperature range in which the relay can operate?
The relay can operate in ambient temperatures ranging from -25 to +60 degrees Celsius.
Is there a specific altitude at which the relay can be installed?
The relay can be installed at altitudes up to 2000 metres above sea level without derating.
Does the relay have LED indicators?
Yes, the relay includes LED indicators for easy monitoring of its status.
What is the maximum thermal current for the switching element with contacts?
The maximum thermal current for the switching element with contacts is 5 A.
What type of electrical connection does the relay support?
The relay supports spring-loaded terminals for solid and finely stranded conductors.
