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3UG4622-1AA30
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Specification & Description
The Siemens 3UG4622-1AA30 is a state-of-the-art digital monitoring relay designed for precise current monitoring applications. This compact device, with a width of just 22.5 mm, is engineered to monitor current levels from 0.05 to 10 A for both AC and DC circuits, ensuring versatility across a range of industrial settings. It operates on a supply voltage of 24 V AC/DC and is suitable for frequencies between 50 to 60 Hz.
Crafted for reliability, the 3UG4622-1AA30 features an intuitive LCD display for clear readouts and easy configuration. The unit boasts an adjustable response delay time ranging from 0.1 to 20 seconds, allowing for customisation to specific system requirements. Additionally, it offers a hysteresis setting from 0.01 to 5 A, providing flexibility in managing the precision of current thresholds.
The relay is equipped with one change-over contact, which can be utilised with or without a fault buffer, and it utilises screw terminals for secure and straightforward electrical connections. The device's robust design includes a surge voltage resistance rated at 4 kV and an insulation voltage up to 690 V for overvoltage category III with a degree of pollution 3, ensuring durability and resilience in challenging environments.
With a mechanical service life of typically 10 million switching cycles and an electrical endurance of 100,000 cycles at AC-15 at 230 V, the Siemens 3UG4622-1AA30 is built to last. Its compact dimensions, coupled with snap-on mounting, make it an ideal choice for space-constrained installations without compromising on performance.
This digital monitoring relay is a successor to the 3UG3522-1AC series and continues Siemens' legacy of delivering high-quality, reliable monitoring solutions for industrial control systems. Whether it's for machinery, plant engineering, or process automation, the 3UG4622-1AA30 is a superb choice for professionals seeking precise current monitoring capabilities.
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Frequently Asked Questions
What is the purpose of this digital monitoring relay?
The digital monitoring relay is designed for current monitoring applications. It helps in detecting overcurrent and undercurrent conditions in a single phase, ensuring the electrical system's safety and reliability.
Can this relay monitor both AC and DC currents?
Yes, this relay is capable of monitoring both alternating current (AC) and direct current (DC), providing versatility for different types of electrical systems.
What is the range of current that the relay can monitor?
The relay can monitor currents ranging from 0.05 to 10 A, making it suitable for a variety of applications where precise current monitoring is required.
Is there a delay function available on this relay?
Yes, the relay features an adjustable response delay time ranging from 0.1 to 20 seconds, which can be set for both startup and when a limit violation occurs.
What type of terminals does the relay have for electrical connections?
The relay is equipped with screw-type terminals for both the main and auxiliary circuits, ensuring secure and reliable connections.
What is the size of the relay and how is it mounted?
The relay has a compact design with dimensions of 91 x 22.5 x 92 mm and is designed for snap-on mounting, allowing for easy installation in various settings.
What is the ambient temperature range for the operation of this relay?
The relay can operate within an ambient temperature range of -25 to +60 degrees Celsius, ensuring functionality in a wide range of environmental conditions.
Does the relay have any certifications or approvals?
Yes, the relay comes with a General Product Approval and an EMC Declaration of Conformity, indicating compliance with relevant standards and regulations.
What is the insulation voltage rating for this relay?
The relay has an insulation voltage rating of 690 V for overvoltage category III with a degree of pollution 3, providing a high level of electrical insulation.
How does the relay ensure protection against electromagnetic interference?
The relay is designed to withstand various types of electromagnetic interference, including electrostatic discharge, field-bound parasitic coupling, and conducted interference, ensuring stable operation in electrically noisy environments.
