DIN 89270:2014-10

This standard applies to installation switches which are preferably used in shipbuilding. They consist of a surface-mounted casing with lid which is equipped with a switch insert according to DIN 89322 and one or two threaded bushing/s for cable insertion. They are designed for the application with shielded and unshielded electrical cables, e. g. type MGG according to DIN 89160, Type A according to VG 95218-13 or Type C according to VG 95218-28 and similar cable designs and with insulated wires with a nominal cross-section up to 2,5 mm2. The installation switches are intended for the use in electrical installations with operating voltages up to AC/DC 250 V. Annex A (informative) contains a guideline about the application on vessels of the Deutsche Marine.