Siemens 480V LV Power Circuit Breakers, Time/Current Characteristics of Static Trip III Trip Unit

Page 14

480V Metal-Enclosed Switchgear

LV Power Circuit Breakers

Technical

Time/Current Characteristics of Static Trip® III Trip Unit

480V Enclosed-MetalSwitchgear

62	Siemens Electrical Products and Systems	CSI Section 16470
	Specification Guide

Image 14

Contents Utility and Co-generation Facilities LV switchgear is typically installedGeneral Industry Standards480V Metal-Enclosed Switchgear General Assembly ConstructionConstruction Details FinishInsulation Control WiringMain and Ground Bus Circuit Breaker CompartmentsGuide Form Specifications OptionsCircuit Breaker Racking LV Power Circuit BreakersTypical Breaker Features Primary DisconnectsArc Interruption Ground ConnectionDrawout Interlocks Current Limiting FusesStatic Trip III Trip Unit LV Power Circuit Breaker Trip UnitStatic Trip III Settings Static Trip Iiicpx Protective Relay Functions Accessories/ModificationsRL Breaker Tripping Actuator Shunt Trip Coil RatingsRL Breaker Accessories / Modifications cont’d Technical 11 Control Power Transformers-115C RiseVT, CPT, CT Data LV Power Circuit Breakers Ratings 17 Type RL Circuit Breaker Control Data 15 Type RLF Fused Circuit Breaker Ratings At 50/60 Hertz16 Type RL Circuit Breaker Operating Data 60 Hertz Basis Time/Current Characteristics of Static Trip III Trip Unit 19 Breaker Element Weight in lbs. kg Weights and DimensionsDimensions 20 Fused Element Weight in lbs. kgBreaker Designations Auxiliary / Breaker Section Dimensions22 Breaker Section and Connection Weights in lbs. kga Tie Breaker Sections and Combinations Front ViewsIndoor Side View Indoor Floor Plan, Side ViewIndoor Floor Plan Outdoor Floor Plan, Side View Outdoor Floor PlanCodes and Standards SpecificationsAssembly BusSolid State Trip Units TestingCircuit Breakers Instrumentation and Metering