1.4 Safety signals and symbols1.4.1 Safety signals in the manualIntroduction to safety signalsThis section specifies all safety signals used in the user manuals. Each signalconsists of:• A caption specifying the danger level (DANGER, WARNING, or CAUTION)and the type of danger.• A brief description of what will happen if the the danger is not eliminated.• Instruction about how to eliminate danger to simplify doing the work.Danger levelsThe table below defines the captions specifying the danger levels used throughoutthis manual.SignificanceDesignationSymbolWarns that an accident will occur if the instructionsare not followed, resulting in a serious or fatal injuryand/or severe damage to the product. It applies towarnings that apply to danger with, for example,contact with high voltage electrical units, explosionor fire risk, risk of poisonous gases, risk of crushing,impact, fall from height, and so on.DANGERWarns that an accident may occur if the instructionsare not followed that can lead to serious injury, pos-sibly fatal, and/or great damage to the product. Itapplies to warnings that apply to danger with, forexample, contact with high voltage electrical units,explosion or fire risk, risk of poisonous gases, riskof crushing, impact, fall from height, etc.WARNINGWarns for electrical hazards which could result insevere personal injury or death.ELECTRICALSHOCKWarns that an accident may occur if the instructionsare not followed that can result in injury and/ordamage to the product. It also applies to warningsof risks that include burns, eye injury, skin injury,hearing damage, crushing or slipping, tripping, im-pact, fall from height, etc. Furthermore, it applies towarnings that include function requirements whenfitting and removing equipment where there is a riskof damaging the product or causing a breakdown.CAUTIONWarns for electrostatic hazards which could resultin severe damage to the product.ELECTROSTATICDISCHARGE (ESD)Continues on next page38 Product manual - IRB 3603HAC030005-001 Revision: U© Copyright 2008-2018 ABB. All rights reserved.1 Safety1.4.1 Safety signals in the manual