Kumwell Combi set is lightning and surge arrester class l+ll according to IEC 61643-11. These are recommended for use in the Lightning Protection Zones Concept at the boundaries of LPZ 0-2 (according to IEC 62305) for lightning current equipotential bonding and elimination of switching surges that originate in power supply Systems enterring the building.
Kumwell Combi set is a combination of the lastest technologies where the spark gap combines the varistor. The set contains lightning arresters of KZ01 series and surge arresters of KZ12 series. KZ0112 can be installed in every common switchboard and its special construction is intended for using in non-measurable parts of electrical Systems. KZ0112.UN230.ds-3/1 can be used in industrial installations such as substations, main switchboards of large industrial structures and also places with high risk of a direct lighting strikes occurance. This device is intended for use in TNS and TT power supply system.
| 3+1 Coordinated lightning and surge arrester | |||
| Technical Data | KZ0112.UN230.ds-3/1 | ||
| Nominal voltage | UN | 230 V AC | |
| Max. continuous operating voltage | UC | 350 V AC | |
| Lightning impulse current (10/350µs) (L-N) | Iimp | 50 kA | |
| Lightning impulse current (10/350µs) (N-PE) | Iimp | 100 kA | |
| Total lightning impulse current (10/350µs) | Itotal | 220 kA | |
| L1+L2+L3+N PE | |||
| Nominal discharge current (8/20µs) | In | 20 kA | |
| Voltage protection level | UP | < 1.3 kV | |
| Follow current interrupting rating at UC | Ifi | 3 kArms | |
| Short-circuit withstand capability | Ip | 50 kArms | |
| Response time | tA | < 25 ns | |
| Temporary overvoltage (TOV) (L-N) | UT | 462 V / 5sec | |
| Temporary overvoltage (TOV) (N-PE) | UT | 1200 V / 0.2sec | |
| Max. back-up fuse | 315 A gL/gG | ||
| Recommended cable cross-section | 25 mm2 (solid) | ||
| of the connected conductors | 16 mm2 (flexible) | ||
| LPZ | 0-2 | ||
| Protection type | IP20 | ||
| Operating temperature range |
|
-40°C to + 80°C | |
| Mounting on | Din rail 35 mm | ||
| Type of remote signalling | Changeover contract | ||
0888 183 943
