Residual Current Monitoring Relays measure from 30 mA to 40 A.
Update Time: 2019-12-20 12:13:50
• Sirius 3UG4625 and Sirius 3UG4825 two-phase residual current monitoring relays for IO-Link and Sirius 3UL23 differential current transformers
• Variable monitoring range from 30 milliamperes (mA) to 40 amperes (A)
• High measuring accuracy with deviation of only plus/minus 7.5 percent
The Siemens Industry Automation Division presents a new solution for residual cur-rent monitoring in the range from 30 milliamperes (mA) to 40 amperes (A). The two Sirius 3UG4625 and Sirius 3UG4825 relays for IO-Link have two separate outputs that can be assigned different limit values for a two-phase alarm system involving a warning and subsequent shutdown. The residual currents are measured using the Sirius 3UL23 differential current transformer (also new) in six different sizes that monitors line systems with phase currents up to 630 amperes. The measuring accu-racy of the system, including the 3UL23 differential current transformer, is subject to an extremely low deviation of just plus/minus 7.5 percent.
Sirius 3UG4625 and Sirius 3UG4825 for IO-Link detect residual currents that can occur in industrial plants and machines as a result of, for example, inadequate insu-lation at terminals or on cables, humidity, contamination, or material aging. With the residual current monitoring relays users can define two different limit values within the measuring range. A separate output is available for each of the two values. When the first value is reached, initially a warning is triggered, but when the second value is exceeded, an alarm is triggered via the second output and the monitored line system is interrupted or tripping takes place. While simple monitoring relays immediately issue an alarm or trigger a shutdown when residual currents increase, users here can react early to the warning and avoid unplanned plant standstills thanks to the two-phase limit values.
Sirius 3UG4825 with IO-Link interface can also be connected to a higher-level controller. Via IO-Link, the monitoring relay can be parameterized via the controller, or measured values and diagnostics data can be transferred to higher-level monitoring applications. Both Sirius 3UG4625 and Sirius 3UG4825 for IO-Link are equipped with an LCD that enables simple parameterization, measured value display, and fault diagnostics directly at the device.
The Siemens Industry Automation Division presents a new solution for residual current monitoring in the range from 30 milliamperes (mA) to 40 amperes (A). The two Sirius 3UG4625 and Sirius 3UG4825 relays for IO-Link have two separate outputs that can be assigned different limit values for a two-phase alarm system involving a warning and subsequent shutdown. The residual currents are measured using the Sirius 3UL23 differential current transformer.
Contact for journalists:
Siemens AG, Media Relations
Peter Jefimiec, Tel.:+49 911 895 7975
E-mail: peter.jefimiec@siemens.com
Further information on Sirius Relais can be found at www.siemens.com/sirius
Follow us on Twitter at: www.twitter.com/siemens_press
The Siemens Industry Sector (Erlangen, Germany) is the world’s leading supplier of innovative and environmen-tally friendly products and solutions for industrial customers. With end-to-end automation technology and industrial software, solid vertical-market expertise, and technology-based services, the Sector enhances its customers’ productivity, efficiency, and flexibility. With a global workforce of more than 100,000 employees, the Industry Sector comprises the Divisions Industry Automation, Drive Technologies and Customer Services as well as the Business Unit Metals Technologies. For more information, visit http://www.siemens.com/industry
The Siemens Industry Automation Division (Nuremberg, Germany) supports the entire value chain of its industri-al customers – from product design to production and services – with an unmatched combination of automation technology, industrial control technology, and industrial software. With its software solutions, the Division can short-en the time-to-market of new products by up to 50 percent. Industry Automation comprises five Business Units: Industrial Automation Systems, Control Components and Systems Engineering, Sensors and Communications, Siemens PLM Software, and Water Technologies. For more information, visit www.siemens.com/industryautomation
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