Kumwell KZ23.PK* is a single-phase surge arrester class III with a high-frequency filter according to IEC 61643-11. They are produced for nominal current within the range of 8, 16, 25, 32A for application use in TNS systems. The types KZ23.PK*.UN230 and KZ23.PK*.UN230.DS are constructed for mounting on DIN rail 35mm. KZ23.PK*.UN230 and KZ23.PK*.UN230.DS are designed for protection of single-phase electronic appliances in L.V. supply systems against impulse surge and high frequency disturbance.
The types KZ23.PK*.UN230 are fitted with a green LED diode signalizing the right functioning, types KZ23.PK*.UN230.DS indicate the failure by target disconnection of mechanical thermal fuses.
| KZ23.PK Series | |||||
| Technical Data | KZ23.PK8-UN230.ds | KZ23.PK16-UN230.ds | KZ23.PK25-UN230.ds | KZ23.PK32-UN230.ds | |
| Nominal Voltage | UN | 230 V AC | |||
| Max. continuous operating voltage | UC | 275 V AC | |||
| Nominal current | 8 A | 16 A | 25 A | 32 A | |
| Nominal discharge current (8/20) | In | 3 kA (L/N, L/PE) | |||
| 5 kA (N/PE) | |||||
| Combined impulse | Uoc | 6 kV (L/N, L/PE) | |||
| 10 kV (N/PE) | |||||
| Voltage Protection level at Uoc | UP | < 850 V (L/N) | |||
| < 1.5 kV (L/PE) | |||||
| < 1.2 kV (N/PE) | |||||
| Asymmetrical attenuation of filter | min. 80 dB at 4MHz | ||||
| (band-stop filter) | min. 40 dB (0.15-30 MHz) | ||||
| Filters constants | Cx | 150 nF` | 220 nF | 220 nF | 220 nF |
| Cy | 22 nF | ||||
| L | 1.2 mH | 1.8 mH | 2.3 mH | 2.3 mH | |
| Power loss at winding temp. 20°C | < 2.2 W | < 3.5 W | < 3.5 W | < 4 W | |
| Response time | tA | < 25 ns (L/N) | |||
| < 100 ns (L/PE, N/PE) | |||||
| Recommended backup fuse | 6 A | 16 A | 25 A | 32 A | |
0888 183 943
