Earth leakage circuit breaker Doepke

RCBOs combine residual current and miniature circuit-breakers in a single device (RCBO). They protect people against residual currents and systems against short-circuit and overload. The DRCBO 4 have a rated switching capacity of 6 kA. They provide a labelling area in addition to the tripping indicator. Type B switches are AC-DC sensitive at frequencies of 0 Hz (smooth residual currents) to 150 kHz. They have increased resistance to surge currents and lightning. Switches with the characteristic curve SK ensure fault protection and a high system availability. They are characterised by a lower response sensitivity at higher frequencies. This means that system-related nuisance tripping is largely prevented. The characteristic curve SK is optimised for systems in which no fire protection is required. Switches with tripping characteristic C are optimised for electric circuits with high inrush or peak currents. Standard switches are designed for electric circuits with a rated voltage of 230 V or 400 V and a rated frequency of 50 Hz. Properties: AC/DC sensitive for residual currents with frequencies of 0 Hz (smooth direct current) up to 150 kHz; mains-voltage-independent tripping when type A residual currents occur; compact design for all rated currents; switch position indicator; separate indication of tripping cause; strain-relief clamps with a wide terminal cross-section range on both connection sides; neutral conductor right; labelling area; Mounting: quick fastening to mounting rail; any installation position; supply preferably from above; Application areas: commercial and industrial installations with TT, TN-S and TN-C-S systems, where power electronics equipment is used without galvanic isolation from the mains, e.g. frequency converters, switching power supplies, high-frequency converters. photovoltaic installations and UPS equipment with frequency converters without transformers; Type B+ and type B RCBOs with characteristic curve NK should be used where fire protection is legally required; Hints: suitable for use in 50 Hz AC networks; RCBOs are also available for other frequencies upon request; not designed for use in direct current networks or on the output side of controlled electrical equipment such as frequency converters.