Siemens ETU745 - Frame Size 1

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WL Circuit Breaker selection and application guide

Frame size 1 with plexi-glass cover outline

Low Voltage Breaker

Draw-out breaker dimensions

Main Page

Table of Contents3
Features and Benefits4
Breaker Assembly View5
Draw-Out Cradle Assembly View6
Electronic Trip Units7
ETU Models and Features8
ETU Communication9
ETU Metering Function10
Alarm Parameters11
Extended Relaying11
Function Overview of the ETU12
Breaker Accessories and Options14
Ground Fault Module14
Key Lock-Out14
Operation Counter14
Auxiliary Contacts14
Breaker Status Sensor (BSS)14
Bell Alarm Contact and Reset Coil15
Racking Handle Key Lock15
Breaker Push-Button Lock-Outs15
Close Coil15
Spring Charging Handle Lock16
Rating Plugs16
Ready-To-Close Contact16
Shunt Trip16
Shunt Trip (Continuous Duty)16
Status Contact17
Spring Charging Motor17
Undervoltage Release17
Cradle Mounted Options18
Secondary Disconnect18
Isolation Shutters18
PROFIBUS or MODBUS Communication18
Dual Key Breaker Locking18
Arc Chute Cover19
TOC (Truck Operated Contacts)19
MOC (Mechanism Operated Contacts)19
Accessories20
Communication and Metering Power Supply20
Handheld Test Device20
Breaker Display Adapter (BDA)20
Mechanical Breaker Interlocks20
Metering Current Transformer 3-Phase Window21
Metering Current Transformer - Neutral Phase21
Neutral Current Sensor - 4-Wire Residual22
Breaker Door Cover22
Neutral Current Sensor22
Door Sealing Frame22
Breaker Lifting Device23
Cubiclebus Modules23
Digital Input Module23
ZSI Module23
Analog Output Module24
Pre-Assembled Cubiclebus Communication Cables24
Fixed-Mounted Breaker Front Bus Connectors24
Primary Lug Connector Kits24
UL 489 Ratings25
Ratings for UL 48925
Ratings for UL 489 (Non-Automatic)26
UL 489 Assembled Breaker Catalog Number27
Interrupting Rating, Frame Size, Breaker Type and Frame Rating27
Rating Plug28
Bell Alarm, Ready-To-Close Contacts29
Shunt Trip29
Undervoltage Release30
Charging Motor, Motor Switch, Operations Counter30
Close Coil, Power Metering and Communications31
Breaker Locks31
Miscellaneous Options31
UL 489 Assembled Breaker Catalog Number (Non-Automatic)32
Breaker Capacity, Frame Size, Switch Type and Frame Rating32
Ready-To-Close Auxiliary Contacts32
Shunt Trip33
Undervoltage Release33
Charging Motor, Motor Switch, Operation Counter34
Close Coil, Communications34
Switch Locks35
Miscellaneous Options35
UL 489 Accessories36
External Breaker Accessories36
Interrupting Rating, Frame Size and Frame Rating37
UL 489 Cradle Catalog Numbers38
UL 489 Cradle Accessories39
UL 1066 Ratings40
Ratings for UL 106640
Ratings for UL 1066 (Non-Automatic)41
UL 1066 Assembled Breaker Catalog Number42
Interrupting Rating, Frame Size, Breaker Type and Frame Rating42
Rating Plug43
Electronic Trip Units (ETU)43
Bell Alarm, Auxiliary Contacts44
Shunt Trip44
Undervoltage Release45
Charging Motor, Motor Switch, Operations Counter45
Close Coil Power Metering and Communications46
Breaker Locks46
Miscellaneous Options46
UL 1066 Non-Automatic Assembled Breaker Catalog Numbers47
Breaker Capacity, Frame Size, Switch Type, Frame Rating47
Auxiliary Contacts48
Shunt Trip48
Undervoltage Release48
Charging Motor, Motor Switch, Operations Counter49
Close Coil, Communications49
Switch Locks50
Miscellaneous Options50
UL 1066 Breaker External Accessories50
UL 1066 Cradle Catalog Numbers51
UL 1066 Accessories52
General Wiring Schematic53
Ground Fault Setting55
Metering Voltage Details56
Fixed Breaker Dimensions57
Frame Size 263
Draw-Out Breaker Dimensions69
Frame Size 169
Frame Size 172
Frame Size 274
Frame Size 378
Frame Size 380

Siemens ETU745 - Frame Size 1

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