Do you need help?
portrait
Your customer account manager
Marcus Häbel
Support for all products

T:
+49 4931 1806-888
E:
support at doepke dot de

Residual current circuit-breakers DFS 4 025-4/0,01-A FT

09122921, Residual current circuit-breakers, four-pole, 25 A, 0,01 A, Type A, with remote-tripping function, N left
* Picture similar to the actual unit
  • sensitive to pulsating and alternating currents, mains-voltage-independent
  • with remote-tripping function
  • higher system availability: short-time delayed, selective for the establishment of stacked applications
  • "HD" design: resistant against corrosive gases and moisture
  • minimal power dissipation at each pole
  • large connection terminals up to 50 mm²
  • VDE certified

Residual current circuit-breakers DFS 4 025-4/0,01-A FT

09122921, Residual current circuit-breakers, four-pole, 25 A, 0,01 A, Type A, with remote-tripping function, N left
* Picture similar to the actual unit
  • sensitive to pulsating and alternating currents, mains-voltage-independent
  • with remote-tripping function
  • higher system availability: short-time delayed, selective for the establishment of stacked applications
  • "HD" design: resistant against corrosive gases and moisture
  • minimal power dissipation at each pole
  • large connection terminals up to 50 mm²
  • VDE certified

Details

Residual current circuit-breakers, four-pole, 25 A, 0,01 A, Type A, with remote-tripping function, N left

Residual current circuit-breakers (RCCB) switch the power supply off if dangerous high residual currents occur. DFS 4 are two-terminal or two-terminal pair residual current circuit-breakers for single- or three-phase networks. In the standard design, the compact devices are just four module widths wide. The compact residual current circuit-breakers are available with a number of different types of residual currents and versions at rated currents up to 125 A. The large two-tier terminals can also accommodate large conductor cross-sections. A practical multifunction switch toggle simplifies troubleshooting. They can be provided with pre-prepared labels using free-of-charge software. Type A switches are sensitive to pulsating and alternating currents. This function is independent of the mains voltage. Switches in the FT design enable remote RCCB testing. An auxiliary contact also signals tripping of the circuit-breaker.

help function integrated, pin assignment 1 break contact/1 changeover contact, 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", Neutral conductors with standard design left, for two-terminal-pair devices type A/AC/F up to 125 A and type B/B+ up to 80 A; N-right available at no extra charge.

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, RCCBs from the FT series are especially suitable for the remote switch-off of systems and parts of systems and for being tripped by hazard alarms, amongst other devices, 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. Comprehensive protection is not provided in this case. For these applications we recommend our AC/DC sensitive residual current circuit-breakers (Type B or B+).

Devices for FT variants must not be used in emergency-stop positions. The type-A and type-B NA variants are available for this purpose, The contacts of the external command device must be designed for a rated residual current ≥ 0.5 A and for the rated voltage of the residual current circuit-breaker.

Residual current circuit-breakers, four-pole, 25 A, 0,01 A, Type A, with remote-tripping function, N left

Residual current circuit-breakers (RCCB) switch the power supply off if dangerous high residual currents occur. DFS 4 are two-terminal or two-terminal pair residual current circuit-breakers for single- or three-phase networks. In the standard design, the compact devices are just four module widths wide. The compact residual current circuit-breakers are available with a number of different types of residual currents and versions at rated currents up to 125 A. The large two-tier terminals can also accommodate large conductor cross-sections. A practical multifunction switch toggle simplifies troubleshooting. They can be provided with pre-prepared labels using free-of-charge software. Type A switches are sensitive to pulsating and alternating currents. This function is independent of the mains voltage. Switches in the FT design enable remote RCCB testing. An auxiliary contact also signals tripping of the circuit-breaker.

help function integrated, pin assignment 1 break contact/1 changeover contact, 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", Neutral conductors with standard design left, for two-terminal-pair devices type A/AC/F up to 125 A and type B/B+ up to 80 A; N-right available at no extra charge.

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, RCCBs from the FT series are especially suitable for the remote switch-off of systems and parts of systems and for being tripped by hazard alarms, amongst other devices, 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. Comprehensive protection is not provided in this case. For these applications we recommend our AC/DC sensitive residual current circuit-breakers (Type B or B+).

Devices for FT variants must not be used in emergency-stop positions. The type-A and type-B NA variants are available for this purpose, The contacts of the external command device must be designed for a rated residual current ≥ 0.5 A and for the rated voltage of the residual current circuit-breaker.