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General| Brand | Siemens |
|---|---|
| Model | SIRIUS 3RU2 |
| Category | Protection Device |
| Language | English |
Outlines user responsibilities for system configuration and product functionality.
Explains the manual's scope and information provided for overload relays.
Highlights Siemens' portfolio for efficient energy management in industry.
Details Siemens' online and technical support services for products.
Explains the use and content of DataMatrix codes on product labels.
Provides information on environmentally friendly recycling and disposal of devices.
Lists the device and EMC standards that the overload relays meet.
Points to other standards and approvals in technical data and catalogs.
Provides a general introduction to SIRIUS overload relays and their purpose.
Details available sizes, setting ranges, and tripping classes for overload relays.
Summarizes the applications for 3RU21 and 3RB30/3RB31 overload relays.
Describes the 3RU21 series thermal overload relays and their features.
Describes the 3RB30 series solid-state overload relays and their features.
Describes the 3RB31 series solid-state overload relays and their features.
Directs users to references for product combinations and contactor coordination.
Explains the primary protection functions of the overload relays.
Describes the ground fault protection feature specific to the 3RB31 relays.
Explains the function and response of the overload relay's auxiliary contacts.
Details how the operating state of the relays is indicated.
Covers additional functions like RESET and TEST operations.
Introduces the online configurator for SIRIUS Innovations products.
Explains the role and application of overload relays in motor feeders.
Discusses considerations for normal and heavy-duty motor starting conditions.
Details the use of overload relays in star-delta starter configurations.
Provides guidance on operating overload relays with frequency converters.
Explains the requirements for short-circuit protection in load feeders.
Covers requirements for protecting explosion-protected motors in hazardous areas.
Discusses installation altitude and ambient temperature considerations.
Describes the available mounting options for overload relays.
Specifies minimum clearances and permissible mounting positions.
Provides step-by-step instructions for mounting and disassembling relays.
Lists the different connection types available for overload relays.
Details the permissible conductor cross-sections for various connection systems.
Explains the control circuit and terminal connections for 3RU21 relays.
Explains the control circuit and terminal connections for 3RB30/3RB31 relays.
Specifies conductor cross-sections for screw-type connection systems.
Specifies conductor cross-sections for spring-loaded connection systems.
Specifies conductor cross-sections for ring cable lug connection systems.
Details how to set the rated motor current using the rotary knob.
Explains how to set tripping classes and ground-fault detection on 3RB31 relays.
Describes manual, automatic, and remote reset procedures.
Explains how to perform device tests for operational verification.
Shows how auxiliary contacts respond to different relay states and operations.
Lists available accessories for enhancing overload relay functionality.
Describes the terminal support for mounting relays independently.
Details options for mechanical remote resetting of overload relays.
Explains the cable release accessory for hard-to-reach relays.
Describes the electrical remote RESET module for 3RU21 relays.
Explains the function of the sealable cover for setting protection.
Covers the use of protective covers for ring cable lug connections.
Guides users on how to find and access product data sheets online.
Summarizes the general performance characteristics of the overload relays.
Lists the key equipment and features of the overload relays.
Provides general technical data for the 3RU2116/3RU2126 models.
Details the technical data for the main circuit of 3RU21 relays.
Details the technical data for the auxiliary circuit of 3RU21 relays.
Provides general technical data for the 3RU2136 model.
Specifies dimensions and mounting details for 3RU2136 relays.
Provides general technical data for 3RB301/3RB302/3RB311/3RB312 models.
Details the technical data for the main circuit of 3RB30/3RB31 relays.
Details the technical data for the auxiliary circuit of 3RB30/3RB31 relays.
Specifies technical data related to ground fault protection for 3RB31.
Lists the UL/CSA rated data for 3RB303/3RB313 overload relays.
Provides data on rated operating current and active power loss.
Explains how to find and view internal circuit diagrams online.
Provides internal circuit diagrams for the 3RU21 series relays.
Provides internal circuit diagrams for the 3RB30 series relays.
Provides internal circuit diagrams for the 3RB31 series relays.
Defines Type 1 and Type 2 coordination according to standards.
Explains the characteristics and potential damage of Type 1 coordination.
Explains the characteristics and minimal damage of Type 2 coordination.
Provides links for additional information on overload relays online.
Lists article numbers for operating instructions of various SIRIUS products.
Guides users on how to find and download SIRIUS Innovations manuals.
Lists various links for product documentation, catalogs, and technical assistance.
Provides dimension drawings for various 3RU21 series models.
Provides dimension drawings for various 3RB30/3RB31 series models.
Shows drilling plans for 3RT2 contactors for mounting.
Provides a form for reporting errors and suggesting improvements to the manual.
Details information required for faxing corrections to Siemens.
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