3UG46 25 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 3UG4625 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

• Worldwide use thanks to wide voltage range from 24 to 240 V AC/DC
• High measuring accuracy ± 7.5% 
• Permanent self-monitoring
• Variable threshold values for warning and disconnection
• Freely configurable delay times and RESET response
• Permanent display of the actual value and fault diagnostics via the display
• 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