remote drive (ARD) is used to switch connected residual current circuit breakers on and off remotely. This significantly increases system availability. ARDs with automatic function automatically switch the circuit breaker back on. If a system error is detected, it will not be switched back on again. The devices in this series switch the Doepke residual current circuit breakers DFS 2 and DFS 4. Depending on the version, the DFAs make three, one or no attempts to switch on again. They are attached to the left side of the RCCB. Remote drives of this version switch the residual current circuit breaker back on once. The switch-on occurs 15 seconds after it has been triggered. The automatic mode can be switched off, e.g. for protection during maintenance work in the distribution system. The power supply is either 24 V AC or DC. Remote triggering is also possible using a residual current simulation. The current switching position of the circuit breaker (switched on, triggered or switched off) is signaled by three integrated relay switching contacts. Properties: retrofittable remote drive for Doepke residual current circuit breakers of the DFS 2 and DFS 4 series, variants for different power supplies, compact design, type of installation: to the left of the residual current circuit breaker by clamping, quick fastening to the mounting rail, installation position as desired, areas of application: remote drives are used wherever electrical installations are difficult to access or where a high level of system availability is to be achieved. This can be, for example, agricultural operations, small wind turbines, photovoltaic installations, charging stations for electric vehicles, pumping stations, sewage treatment plants and telecommunications systems. Notes: According to the standard, automatic restarting is only permitted in areas to which only electrically trained persons and qualified electricians have access. The remote drive does not affect the function of the residual current circuit breaker.
| Property | Value |
| Rated switching current: | 1 A |
| Rated voltage: | 24 V |
| Device mounting: | FI circuit breaker |
| Factory-fitted: | no |
| Suitable for max. number of poles of the main contact unit (total): | 4 |
| Suitable for max. current of the main contact unit: | 63 A |
| With autotest for residual current function: | no |
| Number of contacts as normally open: | 3 |
