Transcription of Reference Manual Protection Equipment - …
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Protection EquipmentOverload RelaysReference Manual March 2010 Industrial ControlsSiemens 20102 IntroductionOverload RelaysGeneral data3- Overview3RU1 Thermal overload Relays3RU11 for standard applications7- Overview7- Design8- Function9- Technical specifications14- Characteristic curves15- Dimensional drawings16- Schematics17 Accessories3RB2 Solid-State overload Relays3RB20, 3RB21 for standard applications18- Overview18- Design19- Function20- Technical specifications25- Characteristic curves26- Dimensional drawings27- Schematics3RB22, 3RB23 for high-feature applications28- Overview29- Design30- Function32- Technical specifications37- Characteristic curves38- Dimensional drawings40- Schematics42 AccessoriesProtection EquipmentProtection EquipmentIntroduction2 Siemens 2010 Overview 1) The units are responsible in the main circuit for overload Protection of the assigned electrical loads (e.
Overload Relays Siemens · 2010 5 General data 1) The SIRIUS 3RU11 thermal overload relays use a bimetal contactor and therefore …
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