Siemens SIRIUS System Manual

SIRIUS System Manual
GWA 4NEB 430 0999-02b
4-1
4
3RU11, 3RB10, and 3RB12 overload relays
Section Subject Page
4.1 Specifications/regulations/approvals 4-2
4.2 Device description 4-4
4.2.1 Overload relays in motor feeders 4-5
4.2.2 General device description 4-6
4.2.3 Operation 4-13
4.3 Application and use 4-15
4.3.1 3RU11 thermal overload relay and 3RB10 electronic
overload relay
4-15
4.3.2 3RB12 electronic overload relays 4-19
4.4 Accessories 4-23
4.4.1 Electromechanical remote reset 4-23
4.4.2 Mechanical remote reset 4-24
4.5 Mounting and connection 4-26
4.5.1 Mounting 4-26
4.5.2 Connection 4-29
4.5.3 Circuit diagrams 4-31
4.6 Dimensioned drawings 4-34
4.7 Technical specifications 4-37
4.7.1 3RU11 thermal overload relays 4-37
4.7.2 3RB10 electronic overload relays 4-43
4.7.3 3RB12 electronic overload relays 4-47

Siemens SIRIUS Specifications

General

Brand	Siemens
Model	SIRIUS
Category	Relays
Language	English