For illustrative purpose only
Doepke 09134998 circuit breaker Residual-current device B-type 4
Doepke 09134998, Residual-current device, B-type, 10000 A, IP20, 230 - 400 V
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Product Information
| Information | |
|---|---|
| Manufacturer | Doepke |
| Product code | 16523124 |
| EAN | 04014712148543 |
| Manufacturer part number | 09134998 |
| Category | Other electrical supplies |
Product Description
Residual current circuit-breakers (RCCBs) are components for implementing protective measure "Automatic switch-off of power supply" as per VDE 0100 part 410 or corresponding international installation regulations. Series DFS 2 devices are compact two-pole residual current circuit-breakers for single-phase networks. In the standard design, they only take up two module width units of space. In spite of the compact dimensions, a number of different tripping currents and characteristics are available at rated currents, depending on the design, up to 125 A. They also have large two-tier terminals for large conductor cross-sections, a practical multifunctional switch toggle and can be provided with pre-prepared labels using free-of-charge software. Series DFS 4 devices are compact two or four-pole residual current circuit-breakers. In the standard design, they only take up four module width units of space. While DFS 4 devices are designed for AC and pulsating DC residual currents for three-phase networks but can also be used in single-phase networks, there are also special variants in the AC/DC sensitive designs (type B, type B+) for single or three-phase operation. In spite of the compact dimensions, a number of different tripping currents and characteristics are available at rated currents, depending on the design, up to 125 A. They also have large two-tier terminals for large conductor cross-sections, a practical multifunctional switch toggle and can be provided with pre-prepared labels using free-of-charge software. DFS 2 and DFS 4 devices with residual current characteristic B detect smooth DC residual currents as well as all other type B residual currents as per IEC 60755. The operating voltage required for this is taken from the mains supply. Correct power supply is ensured when the voltage between the mains conductors is ≥ 50 V. Type A residual currents are detected regardless of the mains voltage. Furthermore, these residual current circuit-breakers completely detect residual currents of all frequencies up to 100 kHz. With this wide frequency range for residual current detection, these devices more than meet the requirements for the design standards for type B residual current circuit-breakers. Protection as per VDE 0100 part 410 is provided with a corresponding earth resistance via the entire frequency range of residual current detection. The maximum permissible earth resistance is calculated as the quotient from the permissible touch voltage and the maximum trip residual current in the entire detected frequency range. For residual current circuit-breakers with characteristic curve SK, the frequency response of the tripping current is designed so that residual currents with high frequencies, such as in the clock frequency range for frequency converters, as opposed to the rated frequency are detected with significantly reduced sensitivity. Undesired trips caused by leakage currents can therefore be widely avoided. However, fire protection depending on the rated residual current of the switch (0.03 A, 0.1 A or 0.3 A) is only provided for residual currents with frequencies up to 1000 Hz, 300 Hz or 100 Hz, while the devices with tripping current frequency response B+ or NK offer protection over the entire tripping frequency range up to 20 kHz or 100 kHz, respectively. Devices in the standard design are intended for monitoring circuits with a rated voltage of 230 V or 400 V and a rated frequency of 50 Hz.