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residual current circuit-breaker DFS 4 016-4/0,03-A Twin
Residual current circuit-breakers, four-pole, 16 A, 0,03 A, Type A, Twin-Ausführung, N left

Function:
Type A residual current circuit-breakers detect pulsating direct current and alternating current. Our Twin RCCBs offer the unique ability to test the switch without disconnecting the circuit. They combine two fully functional RCCBs in one device. When the test button is pressed, only one of the circuit-breakers trips, while the other continues to conduct current and maintain protection – ensuring uninterrupted operation. Standard RCCBs are designed for circuits with 230/400 V at 50 Hz.

Features:
function test for residual current circuit-breaker without interrupting power, residual current protection complies with standard even during testing procedure, no costs during system downtime, high system availability , tripping not dependent on mains and auxiliary voltage, sensitive to AC residual currents and pulsating DC residual currents (type A) , compact design for all rated currents, high short-circuit resistance, double-sided two-tier terminals for large conductor cross-section and busbar, switch position indicator, viewing window for labels, multifunction switch toggle with three positions: "on", "off" and "tripped"

Mounting method:
quick fastening to mounting rail, any installation position, supply from any direction

Applications:
Power supplies to residential and purpose-built buildings as well as industrial facilities with TN-S, TT and TN-C-S networks. In IT networks, the residual current circuit-breakers of this series can be set to switch off in the event of a second fault, The twin design allows regularly prescribed function tests to be performed without disconnecting the power, Excluded is the application in TN-C systems and for the protection of installations in which electronic equipment could generate smooth DC currents or residual currents with frequencies other than 50 Hz.

Hints:
WES 2 restart interlock mounted at factory