ABB 2CTB815704R2900 OVR T2 40-440S P T Surge protection 20 kA 1 pc(s)

Surge protection devices SPD type 2 with the thermal monitoring QUICKSAFE® are for protection against indirect lightning effects and with switching surges. They will be installed as close as possible to the feed point of the electrical system. All OVR T2 consists of a base part and an interchangeable protective module. They are equipped with a mechanical function display and the TS variants with a potential-free change-over contact. The versions with "reserve varistor" (s) thus provide additional protection for the electrical system that the overvoltage protection device is not completely separated from the mains at the end of its service life, but instead a basic protection is guaranteed by an additional varistor and thus the system remains protected until the overvoltage protection module is replaced. They are compatible with the System PRO M compact series and can be connected via phase rails. Mainly used in sub-distributions and final circuits.

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