Earth leakage circuit breaker - Residual current breaker with auxiliary DFS040-4/0,03-B SKNA

Earth leakage circuit breaker - Residual current breaker with auxiliary DFS040-4/0,03-B SKNA – Doepke – 09134861 – 4014712224124: Residual current circuit breaker DFS040-4/0,03-B SKNA Number of poles 4, rated voltage 400V, rated current 40A, rated residual current 0.03A, mounting type DIN rail, residual current type B, short-time delayed type, short-circuit strength (Icw) 10kA, rated breaking capacity 0.5kA, surge current strength 3kA, frequency 50Hz, additional devices integrated other, additional devices factory-mounted other, rated switching current additional device 0A, rated voltage additional device 230V, type of control voltage additional device AC, degree of protection (IP) IP20, size (according to DIN 43880) 4.5, width in modular units 4.5, installation depth 69mm, residual current circuit breakers (RCCB) shut off power when dangerously high residual currents occur. They protect people, animals and systems. DFS 4 are two- or four-pole residual current circuit breakers for one- or three-phase networks. In the standard version, the compact devices are four width units wide. They are available with many different fault current types and versions with rated currents of up to 125 A. The large two-tier terminals can also accommodate large conductor cross-sections. The released position of the multifunction shift knob makes troubleshooting easier. The free label software helps with the labeling. Type B switches are AC/DC sensitive. They protect against pulsed and alternating residual currents, residual currents with mixed frequencies and smooth DC residual currents at frequencies up to 150 kHz. They have increased surge current and thunderstorm resistance. Residual current circuit breakers of the SK series stand for residual current protection and high system availability. They are characterized by a lower response sensitivity at higher frequencies. The SK characteristic is optimized for systems that do not require fire protection. On residual current circuit breakers in the NA version (NA for emergency stop), e.g. B. button to switch off in emergency situations can be connected. An integrated LED indicates the emergency release by button or broken wire. The fault current circuit breaker can only be switched on again after the fault has been rectified. Several RCCB can be connected in parallel. Properties: high immunity to operational leakage and fault currents at frequencies from 1 kHz, meets the requirements of the building regulations VDE 0664-10, VDE 0664-40, ÖVE/ÖNORM E 8601, universal current sensitivity for fault currents with frequencies and mixed frequencies of 0 Hz (smooth direct current ) up to 150 kHz, electromagnetic compatibility in accordance with VDE 0664-30 and VDE 0839-6-2 (interference immunity for industrial applications) mains voltage-independent tripping for type A residual currents, voltage-dependent detection of smooth DC residual currents and AC residual currents with frequencies not equal to 50/60 Hz, full functionality with Mains voltages from at least 50 V AC on any two active conductors, with emergency stop function for triggering or switching off using actuating elements, monitoring of the emergency stop function for wire breakage and display by an LED, small size for all rated currents, high short-circuit strength, Two-tier terminals on both sides for large conductors section and rail connection, switching position indicator, viewing window for labels, multifunction toggle switch with three positions: ''on'', ''off'', ''tripped'', also available in the ''HD'' version, connection C1 neutral conductor position on the left, without Surcharge also available as N on the right. Type of installation: Quick attachment to DIN rail, any installation position, infeed from above, areas of application: commercial and industrial installations with TN-S TT and TN-CS systems in which power electronics equipment is used without galvanic mains isolation, e.g. B. Frequency converters, switching power supplies, high-frequency converters, photovoltaic and UPS systems with transformerless inverters. RCCBs of the NA series are particularly suitable for systems in which an emergency stop circuit with isolating properties is to be provided. such as B. in classrooms or on production plants. Notes: suitable for use in 50 Hz alternating current networks, RCCB for other frequencies on request, not for use in direct current networks or on the output side of controlled electrical equipment such as e.g. B. frequency converters.