Surge arresters OPS1 (Surge protection devices) are intended for protecting internal distribution networks of residential and public building from lightning and surge overvoltages.
OPS1 surge arresters were awarded gold medal of the 21st International Exhibition “Electro-2012” in nomination “Best electrical equipment of 2012” for their high quality characteristics.
|Name*||No. of poles||Rated discharge current 8/20 Mx, kA||Rated operating voltage, V||Max. discharge current 8/20 Mx, kA||Package amount, pcs||Product ID|
* Class I (B):
Protection from direct lightning strikes into the building’s or electricity transmission line’s lightning protection system. OPS1 are installed at the entrance into electrical distribution panels or main distribution boards.
Class II (C):
Protection of power distribution networks from switching disturbances or installation as a second protection stage in case of lightning strikes. OPS1 is installed into electrical distribution panels.
Class III (D):
Consumer protection from residual voltage surges, residual (irregular) overvoltages as well as high frequency interference filtering. OPS1 is installed directly near the consumer.
- Boosted reliability at the expense of lowering dissipated power.
- Improved rating of residual voltage arising at surge overvoltage.
- High fire safety ratings ensured by the integrated thermal protection of enhanced reliability.
|1 – casing;
2 – protective element (varistor module);
3 - operation indicator;
4 - fuse element (thermal protection).
|Improved fire safety ensured by the enhanced reliability of integrated thermal protection.|
|Boosted reliability because of lowering dissipated power (per 15–20%) at the expense of excluding transient resistance in the separable termination of interchangeable module and the device’s casing.||Notches on terminal clamps prevent overheating and wire breaks at the expense of more dense and spacious contact. It also helps to lower transient resistance and, therefore, losses. Boosted mechanical wear resistance of connection.|
|Rotating mechanism of operation indicator provides for avoiding indication faults.||Possibility of double simultaneous connection both with a bus (PIN, FORK) and flexible conductors having up to 25 mm2 in section.|
|DIN rail latch with a double fixed position for the convenience of mounting.|
|Feature||OPS1 B (I)||OPS1 C (II)||OPS1 D (III)|
|Rated operating voltage, V||400||400||230|
|Max. operating voltage, V||440||440||250|
|Rated discharge current 8/20 Mx, kA||30||20||5|
|Max. discharge current 8/20 Mx, kA||60||40||10|
|Voltage protection level, max., kV||2,0||1,8||1,0|
|Classified voltage, V||700±5%||650±5%||530±5%|
|Tripping time, max., ms||25||25||25|
|NP / No. of poles||1, 2, 3, 4||1, 2, 3, 4||1, 2, 3, 4|
|Cables max. size, mm2||4….25||4….25||4….25|