Residual current circuit breaker DFS4 040-4/0,03-F

Residual current circuit breaker DFS4 040-4/0,03-F – Doepke – 09134820 – 4014712212329: FI switch DFS4 040-4/0.03-F number of poles 4, rated voltage 400V, rated current 40A, rated residual current 30mA, rated insulation voltage Ui 400V, rated impulse withstand voltage Uimp 4kV, mounting type DIN rail, residual current type F, short-time delayed type, short-circuit resistance (Icw) 10kA, surge current strength 3kA, frequency 50 Hz, additional equipment possible, degree of protection (IP) IP20, width in modular spaces 4, installation depth 69mm, ambient temperature during operation -25... 40°C, degree of pollution 2, connectable conductor cross-section stranded 1.5... 50mm², connectable conductor cross-section solid 1.5... 50mm², residual current circuit breakers (RCCB) switch off the power supply if 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 F switches are mixed frequency sensitive. Regardless of the mains voltage, they protect against pulsed and alternating residual currents as well as residual currents with mixed frequencies deviating from 50 Hz. They are resistant to surge currents and thunderstorms. Standard devices are designed for monitoring circuits with a rated voltage of 230 V/400 V and a rated frequency of 50 Hz. Properties: sensitive to AC and pulsating DC residual currents of mains frequency (type A) and AC residual currents with mixed frequencies not equal to 50 Hz, high immunity to surge fault currents and mains voltage-driven follow-on current pulses, small size for all rated currents, high short-circuit strength, two-tier terminals on both sides for large conductor cross-sections and busbar connection, switch position indicator, Viewing window for labels, multifunction toggle switch with three positions: ''on'', ''off'', ''triggered'', also available in the ''HD'' version, connection C1 neutral conductor position on the left, also available as N on the right at no extra charge . Type of installation: Quick attachment to DIN rail, any installation position, any feed direction, areas of application: modern house installations with LED lighting systems and single-phase frequency converters. Ideal for installations where Type A RCCBs are prone to nuisance tripping due to surge residual currents. Commercial and industrial installations with TN-S TT and TN-CS systems in which power electronics equipment without galvanic mains isolation is used, e.g. B. switching power supplies, high-frequency converters, photovoltaic and UPS systems with transformerless inverters. Use in TN-C networks and to protect systems is excluded. in which electronic equipment can cause smooth DC fault currents. There is no comprehensive protection here. For such applications we recommend our all-current-sensitive residual current circuit breakers (type B or B+). Notes: suitable for use in 50 Hz alternating current networks, not for use in direct current networks and on the output side of controlled electrical equipment such as e.g. B. frequency converters.