Residual-current monitoring relays Siemens

Область применения

Monitoring of plants in which residual currents can occur, e.g. due to dust deposits or moisture, porous cables and leads, or capacitive residual currents

Обзор

The 3UG4825 residual current monitoring relays are used in conjunction with the 3UL23 residual current transformers for monitoring plants in which higher residual currents are increasingly expected due to environmental conditions. Monitoring encompasses pure AC residual currents or AC residual currents with a pulsating DC fault current component (transformer type A in accordance with DIN VDE 0100-530/IEC TR 60755).

Особенности

• High measuring accuracy ± 7.5% 
• Permanent self-monitoring
• Parameterization of the devices locally or via IO-Link possible
• Variable threshold values for warning and disconnection
• Freely configurable delay times and RESET response
• Display and transmission of actual value and status messages to controller
• High level of flexibility and space saving through installation of the transformer inside or outside the control cabinet
• Width 22.5 mm
• All versions with removable terminals
• All versions with screw-type or spring-loaded connection