ABB 2CTB815704R2000 OVR T2 3N 40-275s P QS Surge arrester 20 kA 1 pc(s)

Surge protection devices SPD type 2 with QUICKSAFE® thermal monitoring are designed to protect against indirect lightning and switching surges. They will be installed as close as possible to the electrical system's point of contact. All OVR T2 consist of a basic part and a replaceable protection module. They are equipped with a mechanical function display and the TS variants with a potential-free changeover contact. The versions with "reserve varistor" (s) offer additional protection of the electrical system, so that at the end of the service life the overvoltage protection device is not completely separated from the mains, but a basic protection is guaranteed by an additional varistor and the system is thus still protected until the overvoltage protection module is replaced. They are compatible with the System Pro M compact series and can be moved over phase rails. Main application in sub-distributions and end circuits.

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