These components for wiring circuit breakers in industrial, commercial and private electrical distribution boards significantly reduce the installation effort. The third division unit of the busbars for arc fault protection devices (fire protection switches, AFDD) in the DAFDD 1 series has been designed with a recess for the AFD unit. They are available in two- and four-pole versions and in two lengths that offer space for four or up to 20 DAFDD 1s. The rails create a quick supply-side connection on the underside of the devices. Properties: - can be used to connect arc fault protection devices (fire protection switches, AFDD) in the DAFDD 1 series, - can be cut to length as required - small design, - significant time savings when wiring Installation type: The rails are plugged into the lower connection terminals of the devices to be connected. Areas of application: Busbars of this series are used in conjunction with DAFDD 1 in power supplies for residential and commercial buildings as well as industrial plants.
| Property | Value |
| Number of poles: | 4 |
| Number of phases: | 3 |
| Length: | 202 mm |
| Cross-section: | 10 mm² |
| Rated continuous current Iu: | 63 A |
| Max. Rated operating voltage Ue: | 690 V |
| Insulated: | no |
| Suitable for number of devices: | 4 |
| Suitable for devices with N conductor: | yes |
| Pitch: | 17.5 mm |
| Rated short-time withstand current Icw: | 15 kA |
| Suitable for devices with auxiliary switch: | no |
| Conditional rated short-circuit current Iq: | 15 kA |
| Design of the electrical connection: | Fork |
| Rated impulse voltage: | 4.5 kV |
