Type A residual current circuit breakers are sensitive to pulsating and alternating currents. The twin version offers you the unique option of testing the switch without switching off the circuit. To do this, two complete RCCBs are combined in the device. When the test button is pressed, only one of the switches trips, while the other continues to carry the current and perform the protective function – ensuring trouble-free operation. Standard RCCBs are designed for circuits with 230/400 V at 50 Hz.

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"

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

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.

WES 2 restart interlock mounted at factory

• Data sheet DFS4 016-4/0,03-A TWIN
• Operating instructions
• Technical information Derating graph for DFS 2/4
• Technical information dissipation power DFS 2/4
• Prospectus Circuit-breaker overview
• Prospectus DFS HD "heavy duty"
• Text for invitation to tender RTF
• Text for invitation to tender GAEB XML
• Text for invitation to tender GAEB 2000
• Text for invitation to tender GAEB 90
• Dimensional drawing Group view
• STEP file
• Wiring diagram
• Labelling software DFS / DLS
• Download link Cadenas library