Siemens SENTRON 3WL10 - Table of Contents

Table of contents
1 Introduction........................................................................................................................................... 9
1.1 About this documentation ................................................................................................... 9
1.2 Product-speci󹪝c information................................................................................................. 9
1.2.1 Target readers...................................................................................................................... 9
1.2.2 Technical Support ................................................................................................................ 9
1.3 Reference documents ........................................................................................................ 10
1.4 Advanced training courses ................................................................................................. 10
1.5 Safety instructions ............................................................................................................. 11
1.5.1 Open Source Software ....................................................................................................... 12
1.5.2 Transport........................................................................................................................... 13
2 Description........................................................................................................................................... 15
2.1 Current-carrying 3WL10 circuit breakers ............................................................................. 15
2.2 Current-limiting 3VA27 molded case circuit breakers .......................................................... 15
2.3 Advantages of the platform approach................................................................................. 15
2.4 Overview - applications and portfolio ................................................................................. 16
2.5 Basic properties of the circuit breaker (3WL10 / 3VA27) ...................................................... 16
2.6 Applications....................................................................................................................... 20
2.7 Possible uses and portfolio................................................................................................. 22
2.7.1 Portfolio of 3WL10 air circuit breakers ................................................................................ 24
2.7.2 Portfolio of 3VA27 molded case circuit breakers.................................................................. 25
2.7.3 Electronic trip unit (ETU) .................................................................................................... 25
2.7.4 3VA27 / 3WL10 for motor protection applications ............................................................... 26
2.8 Basic unit........................................................................................................................... 30
2.8.1 Product and mounting versions.......................................................................................... 30
2.8.2 Design of the circuit breaker............................................................................................... 31
2.8.3 Withdrawable breaker ........................................................................................................ 31
2.8.4 Technical overview............................................................................................................. 34
2.8.5 Circuit breaker identi󹪝cation............................................................................................... 39
2.9 Electronic trip unit ETU....................................................................................................... 43
2.9.1 Description of functions..................................................................................................... 43
2.9.2 Selectivity.......................................................................................................................... 46
2.9.3 Design of the electronic trip units....................................................................................... 48
2.9.3.1 Electronic trip units of the 3-series ..................................................................................... 48
2.9.3.2 Electronic trip units of the 6-series ..................................................................................... 49
2.9.4 Characteristics of the ETU................................................................................................... 51
2.9.4.1 Characteristic curves .......................................................................................................... 60
2.9.4.2 Features and options ......................................................................................................... 63
2.9.5 Parameters of the trip units................................................................................................ 66
2.9.5.1 Metering functions ............................................................................................................ 76
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
Equipment Manual, 10/2023, L1V30499596002-03 3