NOTICE
Overvoltage protection
If IE Switches X‑200 are supplied over long 24 V power supply lines or networks, measures are
necessary to prevent interference by strong electromagnetic pulses on the supply lines. These
can result, for example, due to lightning or switching of large inductive loads.
One of the tests used to attest the immunity of devices of the IE Switches X‑200 to
electromagnetic interference was the "surge immunity test" according to EN61000-4-5. This
test requires overvoltage protection for the power supply lines. A suitable device is, for
example, the Dehn Blitzductor BVT AVD 24 V type no. 918 422 or a comparable protective
element.
Manufacturer: DEHN+SÖHNE GmbH+Co.KG, Hans-Dehn-Str.1, Postfach 1640, D-92306
Neumarkt, Germany.
Connecting up
5.1 Safety when connecting up
SCALANCE X-200
Operating Instructions, 11/2021, C79000-G8976-C284-15
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