Doepke 09949136 DRCBO 4 C25/0.30/1N-B SK FI/LS combination

RCBOs combine residual current and circuit breakers in one device (FI/LS combination). They protect people from residual currents and systems from short circuits and overloads. DRCBO 4 have a rated switching capacity of 6 kA. In addition to the tripped indicator, they also have a labeling window. Type B switches are sensitive to all currents at frequencies from 0 Hz (smooth DC residual currents) to 150 kHz. They are resistant to increased surge currents and storms. Switches with the SK characteristic curve stand for fault protection and high system availability. They are characterized by a lower response sensitivity at higher frequencies. System-related false tripping is thus largely avoided. The SK characteristic curve is optimized for systems in which no fire protection is required. Switches with the C tripping characteristic are optimized for circuits with high inrush or peak currents. Standard switches are designed for circuits with a rated voltage of 230 V or 400 V and a rated frequency of 50 Hz. Properties: universal current sensitive for fault currents with frequencies from 0 Hz (smooth direct current) to 150 kHz, tripping independent of the mains voltage for type A fault currents, small size for all rated currents, switch position indicator, separate display of the reason for tripping, clamping yoke terminals with a wide terminal cross-section range on both connection sides, neutral conductor on the right, labeling window, mounting type: quick fastening on a mounting rail, installation position as desired, feed-in preferably from above, areas of application: commercial and industrial installations with TT, TN-S and TN-CS systems in which power electronics equipment is used without galvanic isolation from the mains, such as. B. Frequency converters, switched-mode power supplies, high-frequency converters, photovoltaic or UPS systems with transformerless inverters, RCBO of type B+ and type B with NK characteristics are to be used where fire protection is required, Notes: suitable for use in 50 Hz alternating current networks, RCBO are also available for other frequencies on request, not intended for use in direct current networks or on the output side of controlled electrical equipment such as B. frequency converters.