|DVP 255 2)
Gas-filled surge arrester
|Continuous voltage Uc||255 VAC||335 VAC||255 VAC|
|Nominal discharge current nl (8/20μs)||15 kA/20 kA||15 kA/20 kA||20 kA|
|Max. discharge current ml ax (8/20μs)||30 kA/40 (30) kA||30 kA/40 (30) kA||40 kA|
|Protection level Up at In||) 1,3/1.4 kV||) 1,4 kV/1,65 kV||) 1,2 kV|
|Response time t a||< 25 ns||< 25 ns||< 100 ns|
|Max. permissible ambient temperature||-40° C up to +80° C|
|Degree of protection open/installed||IP 20/40|
|Max. permisible fuse:||100 A||100 A|
|Max. terminal cross section||16/25 mm2|
|Auxiliary contact (optional)||250 V AC/0,5 A, max. 1,5 mm2|
|DIN-rail mountable||on both sides|
|Max. terminal torque||2,5 - 3,0 Nm (main terminal)|
Observe the respective national regulation for installation! E.g. ÖVE 8001-1 or IEC 60361-5-53 A1. The neutral contactor does not require a surge protection device (in accordance with the TN-C switching arrangement) if the protective multiple earthing connection is set up where the surge protection device is integrated. The connection line to the equipotential bonding rail or PE rail should be as short as possible and without looping. All surge devices must be unplugged during insulation measurement. The VVP335 surge arrester has been designed for mains voltages of 3~400/230 V in accordance with ÖVE 8001-1. According to IEC 603645-5-53 A1, the VVP255 surge arrester is for export only.
Plug-in surge arresters designed for indoor mounting as a means of protecting consumer appliances against lightning and transient voltage surges The surge arrester operates in any position. Terminal assignment for the mains and PE/PENconductor is freely definable.
1) ÖVE design according to ÖVE 8001-1, section18. Must be implemented by law in Austria.
2) As specified in ÖNORM/ÖVE E8001-1, the 20kA requirement still applies to the surge arrester between Neutral and the main earthing rail (N/PE conductor). (PAS) or PE-rail, even in cases where surge protection devices were installed with greater nominal discharge currents, e.g. 15 kA or 20 kA between the external conductors and the Neutral conductor.
Surge arresters designed for indoor mounting as a means of protecting consumer appliances against lightning and transient voltage surges The surge arrester operates in any position. The connection line to the equipotential bonding rail or PE rail should be as short as possible and without looping. When measuring insulation, the surge arrester is disconnected from PE by the gasfilled spark gap.