Siemens · 2011
2 Introduction
Overload Relays
General data
3 - Overview
3RU1 Thermal Overload Relays
3RU11 for standard applications
7 - Overview
7 - Design
8 - Function
9 - Technical specifications
14 - Characteristic curves
15 - Dimensional drawings
16 - Schematics
17 Accessories
3RB2 Solid-State Overload Relays
3RB20, 3RB21 for standard
applications
18 - Overview
18 - Design
19 - Function
20 - Technical specifications
25 - Characteristic curves
26 - Dimensional drawings
27 - Schematics
3RB22, 3RB23 for high-feature
applications
28 - Overview
29 - Design
30 - Function
32 - Technical specifications
37 - Characteristic curves
38 - Dimensional drawings
40 - Schematics
42 Accessories
Protection Equipment
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