Symbols usedGeneral warning of a hazardous areaWarning – dangerously high voltageNoticeSignal words usedAll warnings in this manual are clearly highlighted. The following signal words are used for warnings:DANGER Warns of dangers which will lead to serious injuries or to death if the instructions are not follo-wed.WARNING Warns of dangers that may lead to serious injuries or to death and/or cause considerable dama-ge to property if the instructions are not followed.CAUTION Warns of dangers that may lead to reversible injuries and/or considerable damage to property ifthe instructions are not followed.NOTICE Warns of dangers that may lead to operational disruptions and/or considerable damage to pro-perty. Damage to the environment, too, may occur if the instructions are not followed.1.21.3Installation and operating manual VARIABOX(11.2016)4 / 20