WRU-RAL Series
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Protection relays and earth leakage reclosing, Type A ultra-immunised with built-in transformer
WRU-RAL
Cod: WRU-RAL
Description
- Electronic differential protection relay with automatic reclosing with built-in 28 mm transformer, constituting one unit.
- Superimmunized Type A , with high-frequency current filter and high insulation. Measurement in true root mean square (TRMS) value
- Display with leds and back-lit display:
- Differential protection/reclosing settings
- protection trigger current.
- number of reclosures
- protection status messages, etc.
- Unit with three output contact relays one switched and two simple relays, all programmable. The main relay provides the protection associated with the contactor, one is for the pre-alarm and the other for locking once the maximum number of reclosures is reached.
- There is a voltage input for external triggering and reclosing
- Fitting: DIN 46277 (EN-50022) profile
- Reduced three-module size.
- Connection by pluggable terminals
Type
