Kumwell KZ23.PK2.UN230.ds is a single-phase surge arrester type 3 according to EN 61643-11 and Class III according to IEC 61643-11 suitable for TNS and TNC systems.
It is designed for universal application for protection of all electrical appli-ances connected to L.V. supply system against impulse surge effects. It is possible to supply this arrester for different nominal voltage (different from 230V/50Hz) on a special demand.
The function failure of varistor is indicated by target disconnection of mec-hanical thermal fuse which react to varistor overheating above c. 120°C.
| MOV Surge Protection for DC Power | |||
| Technical Data | KZ23.PK2.UN230.ds | ||
| Nominal Voltage | UN | 230 V AC | |
| Max. continuous operating voltage | UC | 275 V AC | |
| Nominal discharge current ln (8/20) | In | 3 kA (L/N, L/PE) | |
| 5 kA (N/PE) | |||
| Combined impulse | Uoc | 6 kA (L/N, L/PE) | |
| 10 kA (N/PE) | |||
| Voltage Protection level at Uoc | UP | < 1 kV (L/N) | |
| < 1.2 kV (L/PE) | |||
| < 1.2 kV (N/PE) | |||
| Power loss at winding temp. 20 °C | < 0.5 W | ||
| Response time | tA | < 25 ns (L/N) | |
| < 100 ns (L/PE, N/PE) | |||
| Recommended back-up fuse | 16 A | ||
| Temporary overvoltage (TOV) | UT | 335V/5 s (L/N) | |
| 1200+UO/200 ms (L/PE) | |||
| LPZ | 2-3 | ||
| Protection type | IP20 | ||
| Operating temperature range | 
|
-40°C to + 80°C | |
| Mounting on | Din rail 35 mm | ||
0888 183 943
