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Specification & Description
The Siemens 3UG4511-1BN20 is a sophisticated analog monitoring relay designed for phase sequence monitoring, ensuring the correct order of phases in electrical systems. This relay operates within a voltage range of 160 to 260 V AC at frequencies of 50 to 60 Hz, making it versatile for various industrial applications. It features two changeover contacts with screw terminals for secure and reliable connections.
Constructed with a focus on durability, the 3UG4511-1BN20 boasts an impressive mechanical service life of typically 10 million switching cycles and an electrical endurance of 100,000 cycles at AC-15 at 230 V, highlighting its capability to withstand the demands of rigorous industrial environments. The relay is also equipped with LED indicators for clear and immediate status visualization, enhancing ease of use and monitoring.
The device is designed to be mounted easily with a snap-on fastening method, and its compact dimensions, including a width of just 22.5 mm, allow for efficient use of space within control cabinets. The 3UG4511-1BN20 is also characterised by its resistance to various environmental factors, including shock and vibration, and operates reliably within an ambient temperature range of -25 to +60 °C, making it suitable for a wide range of operating conditions.
With its robust construction and comprehensive functionality, the Siemens 3UG4511-1BN20 is an essential component for any system requiring reliable phase sequence monitoring, contributing to the safety and efficiency of electrical installations.
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Frequently Asked Questions
What is the function of this monitoring relay?
The Siemens 3UG4511-1BN20 is an analog monitoring relay used for phase sequence monitoring. It ensures that the phase sequence (or order) is correct, which is crucial for the proper operation of three-phase electrical systems.
Can this relay detect both overvoltage and undervoltage conditions?
No, this specific model is designed for phase sequence monitoring and does not include functionality for overvoltage or undervoltage detection.
What type of display does this relay have?
This relay is equipped with an LED display for indicating operational status and diagnostics.
What is the insulation voltage rating for this relay?
The insulation voltage for this relay is rated at 690V for overvoltage category III with a degree of pollution 3, according to IEC 60664.
What are the ambient operating temperature limits for this relay?
The relay can operate within an ambient temperature range of -25 to +60 degrees Celsius.
What is the maximum installation altitude for this relay?
The maximum installation altitude for the relay is 2000 meters above sea level.
What type of terminals does this relay have for electrical connections?
The relay features screw-type terminals for secure and reliable electrical connections.
How many change-over contacts does this relay have?
The relay has 2 change-over contacts, which can be used for switching between circuits in response to the monitoring conditions.
What is the product's resistance to shock and vibration?
The relay is designed to withstand shock resistance according to IEC 60068-2-27 with a sinusoidal half-wave of 15g / 11 ms and vibration resistance according to IEC 60068-2-6 from 1 to 500 Hz.
Does this relay have auto-reset functionality?
Yes, the Siemens 3UG4511-1BN20 includes an auto-reset feature which allows it to automatically reset under certain conditions.
