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SENTRON 3VA1
Manual
Siemens SENTRON 3VA1 Manual
3va molded case circuit breakers with iec certificate
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Contents
Table of Contents
Bookmarks
Table of Contents
Table of Contents
Introduction
About this Documentation
Product-Specific Information
Target Readers
Technical Support
Reference Documents
Description
Overview - Applications and Portfolio
Applications and Possible Uses
Portfolio
Application Examples
Detailed Information about Applications and Possible Uses
Technical Specifications
Molded Case Circuit Breakers and Accessories in the System
Ergonomic Design
The Right Circuit Breaker for any Installation Conditions
Ergonomic Design of Circuit Breakers, Handles and Control Elements
Wide Range of Accessories
Connection Technology
Technical Details
Circuit Breaker Identification
Operation
Design and Components - 3VA1
Design and Components - 3VA2
Current Limitation
Breaking Capacity
Infeed
Selectivity
Standards and Guidelines
Compliance with Standards
Electromagnetic Compatibility
Certificates
Ambient Conditions
Permissible Mounting Positions and Mounting Positions with Accessories
Safety Clearances
Arcing Spaces
Degrees of Protection
Environmental Protection
Protection System
Description of Functions
Characteristic Curves
Guide to Setting the Tripping Characteristic
Overload Protection (L)
Short-Time Delayed Short-Circuit Protection (S)
Instantaneous Short-Circuit Protection (I)
Ground-Fault Protection (G)
Neutral Conductor Protection (N)
Zone Selective Interlocking (ZSI)
Thermal-Magnetic Trip Unit
Thermal Trip Unit (L)
Magnetic Trip Unit with Short-Circuit Protection (I)
Application Cases and Trip Unit Types
Electronic Trip Unit
Connections
Protection Functions
Operator Controls
Load Acceptance and Load Shedding - Load Management
Measuring with a Rogowski Coil
Applications
3VA IEC Trip Units
Line Protection Applications of 3VA Molded Case Circuit Breakers
Variants
Thermal-Magnetic Trip Units
Electronic Trip Units
Overview of 3VA Molded Case Circuit Breakers in Line Protection Applications
Motor Protection Applications of 3VA Molded Case Circuit Breakers
3VA Molded Case Circuit Breakers for Starter Protection
3VA Molded Case Circuit Breakers for Motor Protection
3VA2 Motor Protection Circuit Breaker up to 500 A, Tested According to IEC en 60947-4-1
3VA2 Motor Protection Breaker as Tested Motor Protection Combination, 3VA2 with 3RT
Protection Functions of 3VA2 Molded Case Circuit Breakers for Motor Protection
ETU350M Electronic Trip Unit
5-Series and 8-Series Electronic Trip Units
ETU550M Electronic Trip Unit
ETU860M Electronic Trip Unit
Use of 3VA1 Molded Case Circuit Breakers as Switch Disconnectors
Overview of 3VA1 as Switch Disconnectors
Upstream Protection of Switch Disconnectors
DC Network Applications of 3VA Molded Case Circuit Breakers
Variants
Breaking Capacity with Direct Current
Recommended Circuit Configurations for DC Systems
Applications of the 3VA Molded Case Circuit Breaker with Frequency Converters
400 Hz Network Applications of 3VA Molded Case Circuit Breakers
IT System Applications of 3VA Molded Case Circuit Breakers
Selection Criteria for 3VA Molded Case Circuit Breakers
Fault Situation
Safety-Related Applications of 3VA Molded Case Circuit Breakers
Accessories
Overview of Accessories for 3VA Molded Case Circuit Breakers
Accessories Groups
Possible Combinations of of Accessories
Internal Accessories
Mounting Locations on 3VA Molded Case Circuit Breakers
Auxiliary and Alarm Switches
Contact Sequence Diagrams
Technical Specifications of Auxiliary and Alarm Switches
Auxiliary Releases
Time-Delay Devices for Undervoltage Releases
COM060 Communication Module
Module
Connection System
General Information about Cables and Busbars
Portfolio of Connection Components for 3VA Molded Case Circuit Breakers
General Overview
Front Cable Connection
Front Busbar and Cable Lug Connections
Rear Busbar and Cable Lug Connections
Further Connection Accessories
Insulating Measures
Auxiliary Conductor Terminal
Plug-In and Draw-Out Technology
Introduction
Overview of Variants / Products
General Information
Information about Installation, Built-On and Built-In Components
Plug-In Technology
Product Description
Combination with Other Accessories
Draw-Out Technology
Product Description
Combination with Other Accessories
Accessories for Plug-In and Draw-Out Units
Description of Individual Product Variants
Overview of Technical Specifications
Combination with Other Accessories
Manual Operators
Opening, Closing and Resetting the 3VA Molded Case Circuit Breaker
Front Mounted Rotary Operator
Door Mounted Rotary Operator
Side Wall Mounted Rotary Operator
Locking and Interlocking for Manual Operators
Locking by the Handle
Locking and Interlocking by the Rotary Operator
Degree of Protection
Accessories
Motor Operators
MO310 Side Mounted Motor Operator
MANUAL, AUTO and LOCK Modes
Closing, Opening and Resetting the 3VA Molded Case Circuit Breaker
Faults, Causes of Faults and Rectification of Faults
Motor Operator MO320
MANUAL, AUTO and LOCK Modes
Opening, Closing and Resetting the 3VA Molded Case Circuit Breaker
Faults, Causes of Faults and Rectification of Faults
SEO520 Motor Operator with Stored Energy Operator
MANUAL, AUTO and LOCK Modes
Closing, Opening and Resetting the 3VA Molded Case Circuit Breaker
Faults, Causes of Faults and Rectification of Faults
Communication
Accessories
Technical Specifications
Locking and Interlocking
General Information
Locking
Interlocking
Locking
Padlock Device for the Handle
Cylinder Locks for Locking the 3VA Molded Case Circuit Breaker
Front Interlocking
Cylinder Locks for Implementing Interlocks between Multiple 3VA Molded Case Circuit Breakers
Sliding Bar with Bowden Cable: Modules for Sliding Bar with Bowden Cable
Sliding Bar
Rear Interlock
Residual Current Devices
Portfolio
Possible Combinations of Residual Current Devices and 3VA Circuit Breakers
Residual Current Devices for Mounting on Circuit Breakers
Side Mounted Residual Current Devices Basic RCD310 and Basic RCD510
Loadside Residual Current Devices Basic RCD320 and Basic RCD520
Loadside Residual Current Device Basic RCD520B
Loadside Residual Current Device Advanced RCD820
Special Operating Modes of Residual Current Devices
Technical Specifications
Modular Residual Current Device
Communication and System Integration
System Description
Communication System of the 3VA Molded Case Circuit Breaker
COM800 / COM100 Breaker Data Server
Area of Application
Features
Communication with Etus
Area of Application
DSP800 Display
Commissioning and Testing of Electronic Trip Units Using Powerconfig
Power Management with Powermanager
EFB300 External Function Box
General Information
Power Supply
Functions of the Digital Input and Digital Outputs
Zone Selective Interlocking (ZSI)
SET> Button
Technical Specifications
Test Devices
TD300 Activation and Trip Box
Operation and Execution of the TD300 Tripping Function
Technical Specifications of TD300
TD500 Test Device
Operation and Execution of Test Functions
Executing the Test Functions Using a PC and Powerconfig
Parameterizing Using the Powerconfig Software
Technical Specifications of TD500
External Current Transformer for N Conductor
Parameterization of the External N Transformer
External Current Transformer for Front Busbar Connector up to 630 a
External Current Transformer as Straight-Through Transformer up to 1250 a
Escutcheon
Product Description
Labeling Plate
DIN Rail Adapter
Introduction
Information about Installation, Assembly and Attachment
Service and Maintenance
Notes
Regular Maintenance
Maintenance Following Tripping of a Molded Case Circuit Breaker
Fault Diagnostics
Technical Specifications
Circuit Diagrams
3VA1 Molded Case Circuit Breakers
Basic Units
Accessories
Example: 3VA1 Molded Case Circuit Breaker with Built-On/Built-In Accessories
3VA2 Molded Case Circuit Breakers
Basic Units
Accessories
Example: 3VA2 Molded Case Circuit Breaker with Built-On/Built-In Accessories
Application Example
Dimensional Drawings
Dimensions of Basic Units
3VA10 and 3VA11
3Va12
3Va13 / 3Va14
3Va20 / 3Va21 / 3Va22
3Va23 / 3Va24
3Va25
Dimensions of Accessories
Connection Technology
Plug-In and Draw-Out Units
Manual Operators
Motor Operators
Accessories for Locking, Blocking and Interlocking
Residual Current Devices
Communication and System Integration
EFB300 External Function Box
Test Devices
External Current Transformer for N Conductor
Escutcheon
Power Losses
Power Losses of 3VA1 Molded Case Circuit Breakers
Power Losses of 3VA2 Molded Case Circuit Breakers
Derating and Temperature Compensation
Derating of 3VA1 Molded Case Circuit Breakers
Temperature Compensation for Thermal-Magnetic Trip Units TM210, TM220 and TM240
Additional Correction Factors with Frequencies Other than 50/60 Hz for 3VA1 Molded Case Circuit Breakers
Correction Factors with Direct Current for the Thermal-Magnetic Trip Units of 3VA1 Molded Case Circuit Breakers
Derating for the 3VA1 Switch Disconnector
Derating for the Electronic Trip Units of 3VA2 Molded Case Circuit Breakers
Use of Terminals with Auxiliary Conductor Connection
Appendix
Standards and Approvals
ESD Guidelines
Electrostatic Sensitive Devices (ESD)
List of Abbreviations
Conversion Tables
Glossary
Index
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