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General| Protection class | IP20 |
|---|---|
| Function | Motor protection |
| Number of sensor circuits | 1 |
| Reset function | Manual/automatic |
| Operating temperature | -25...60 °C |
| Mounting type | DIN rail |
Basic knowledge of low-voltage industrial controls is required.
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Access to up-to-date product data for CAx or CAe systems.
Tools and examples for solving automation tasks and presenting solutions.
Tool to compile personal documentation from standard Siemens documents.
Information encoded in DataMatrix codes for device identification and support.
Essential safety precautions for handling and installing the devices.
Protect devices from conductive contamination by installing in a suitable control cabinet.
Protect components from electrostatic charge during handling and installation.
Specifies authorized applications and conditions for the equipment.
Important note for maintaining operational safety of your system.
Safety and commissioning guidelines for operation in hazardous areas.
Guidelines for routing measuring circuit cables to prevent interference.
Calculated safety data according to DIN EN ISO 13849 and IEC 61508.
Details on mounting options and initial setup procedures.
Configuration notes for devices used in hazardous areas.
Procedure for performing a user test and checking the protection function.
Information on maintenance and repair procedures for the devices.
Details on ATEX protection types for overload protection of explosion-proof motors.
Visual overview of the SIRIUS 3RN2 thermistor motor protection relays.
General information about the SIRIUS 3RN2 thermistor motor protection relays.
Information on Type A PTC temperature sensors and their characteristic curves.
Standardized color codes for thermistor sensor cables indicating rated response temperatures.
Lists the advantages and benefits of using SIRIUS thermistor motor protection relays.
Information about using bimetallic switches as alternative sensors.
Details on the different versions of SIRIUS 3RN2 thermistor motor protection relays.
Details on the physical dimensions and widths of the device versions.
Overview of special features like operating temperature and voltage range.
Describes the primary applications and use cases for the thermistor motor protection relays.
Crucial warning notices before installation, wiring, and commissioning.
Explanation of terminal coding to prevent errors during terminal replacement.
Step-by-step instructions for mounting the device on a DIN rail.
Procedure for safely removing the device from a standard mounting rail.
Instructions for mounting the devices directly onto a wall surface.
Procedure for safely removing the device when mounted on a wall.
Details on the location and assignment of device terminals.
Information regarding terminal covers and their article numbers for identification.
Terminal assignments for different module versions, including widths and contact types.
Explanation of terminal designations used on the device covers.
Specifications for connecting different cable types to terminals.
Step-by-step guide for connecting cables to screw-type terminals.
Procedure for safely disconnecting cables from screw-type terminals.
Guidelines for wiring spring-loaded terminals with push-in technology.
Instructions for connecting conductors to spring-loaded terminals.
Procedure for safely disconnecting conductors from spring-loaded terminals.
Instructions for attaching detachable terminals to the device.
Procedure for safely removing detachable terminals from the device.
Description of the 3RN2000 compact unit, its features and suitability.
Features and reset options for standard units of SIRIUS 3RN2 relays.
Details on the 3RN2023 device with two sensor circuits and warning/tripping functions.
Procedures for performing device self-tests and resetting the unit.
Explanation of automatic reset function and its activation.
Procedure for manually resetting a tripped thermistor motor protection relay.
Methods for resetting the device remotely using external inputs or voltage interruption.
Time diagrams illustrating device behavior, including reset functions and LED indications.
Meanings of LED indications for different SIRIUS 3RN2 module versions.
How to find detailed technical data via the Siemens Industry Online Support portal.
Dimensional drawing of the 17.5 mm enclosure for SIRIUS 3RN2 relays.
Drilling diagram for the 17.5 mm enclosure.
Dimensional drawing of the 22.5 mm enclosure for SIRIUS 3RN2 relays.
Drilling diagram for the 22.5 mm enclosure.
A sample circuit diagram for common SIRIUS 3RN2 relay models.
Details and article number for screw-type terminals.
Details and article number for push-in terminals.
Details and article number for wall mounting lugs.
Details and article number for terminal coding pins.
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