3RN2012-2BA30 SIEMENS SIRIUS 3RN2 - thermistor motor protection relay
3RN2012-2BA30 SIEMENS SIRIUS 3RN2 - thermistor motor protection relay
SIRIUS 3RN2 thermistor motor protection relay, standard evaluation unit in a 22.5 mm wide housing. 24 V AC/DC power supply, 2 changeover contacts and spring-loaded terminals. Manual, automatic or remote reset, ATEX approval, 2 ‘ready/tripped’ LEDs, test/reset button, monitoring of open-circuit and short-circuit faults in the sensor circuit, and status memory following a power failure. More
Code: 3RN2012-2BA30
SIRIUS 3RN2 thermistor motor protection relay, standard evaluation unit in a 22.5 mm wide housing. 24 V AC/DC power supply, 2 changeover contacts and spring-loaded terminals. Manual, automatic or remote reset, ATEX approval, 2 ‘ready/tripped’ LEDs, test/reset button, monitoring of open-circuit and short-circuit faults in the sensor circuit, and status memory following a power failure. More
Code: 3RN2012-2BA30
3RN2012-2BA30 - thermistor motor protection relay
SIRIUS 3RN2 thermistor motor protection relay, standard evaluation unit in a 22.5 mm wide housing. 24 V AC/DC power supply, 2 changeover contacts and spring-loaded terminals. Manual, automatic or remote reset, ATEX approval, 2 ‘ready/tripped’ LEDs, test/reset button, monitoring of open-circuit and short-circuit faults in the sensor circuit, and status memory following a power failure.
Would you like to buy or repair this part?
We will check the availability of the spare part as well as the options for diagnosing and repairing your faulty part.
Applications
The relay evaluates the status of the motor’s thermal protection circuit and transmits the information to the downstream control system via its contacts. The choice depends on the type of sensor circuit, the power supply and the required behaviour after the protection has been triggered.
Technical specifications according to Siemens
| Manufacturer | SIEMENS |
|---|---|
| Order number | 3RN2012-2BA30 |
| Series / system | SIRIUS 3RN2 |
| Functions | Motor protection evaluation relay |
| Power supply | 24 V AC/DC |
| Outputs | 2 changeover contacts |
| Reset | Manual / automatic / remote |
| Terminals | Spring terminals |
| Indications | 2 LEDs: ready / tripped |
| Additional functions | Monitoring of open circuits and short circuits in the sensor circuit, test/reset, status memory |
| Approval | ATEX - use in accordance with the documentation for the specific assembly |
| Dimensions W × H × D | 22.5 mm × 100 mm × 90 mm |
| Net weight | 0.138 kg |
Protection evaluation and reset
This version offers manual, automatic and remote reset functions and monitors both open circuits and short circuits in the sensor circuit. For ATEX-compliant applications, refer to the documentation and approval conditions for the specific device. When replacing the unit, maintain the correct wiring and verify the protective function before recommissioning.
Scope of supply
The subject of this quotation is a motor protection evaluation relay. Sensors in the motor, the contactor or other parts of the motor output are not automatically included in the scope of supply.
We will confirm the exact condition of the part and the contents of the specific delivery in the quotation.
Frequently Asked Questions
How can I check that a spare part is the correct model?
Please send the full order number and a photograph of the label on the original part. We will check that the design matches; similar labelling does not in itself confirm the same wiring or functions.
Does the relay measure the motor current directly?
This is a thermistor-based motor protection relay, not a current monitoring relay. When selecting one, it is necessary to check the connected protective circuit.
What needs to be checked when replacing a part?
Compare the full order number, power supply, contacts, reset type and sensor circuit wiring. For safety-critical applications, also verify the conditions of the entire application.
Can you carry out diagnostics or repairs?
Please send us a description of the fault and the details from the label. We will assess the options for diagnosis and repair, as well as the availability of spare parts. For passive and mechanical components, we will first assess whether repair is worthwhile based on their condition.
Why buy from FOXON
Spare part availability
We will check the current availability of the part and confirm the estimated delivery date before you place your order.
New original and refurbished parts
Depending on current availability, we will check for a new original part or a reconditioned alternative.
Parts with a warranty
We will confirm the condition of the specific part and the warranty terms in our quotation.
Diagnostics and repair
As well as purchasing a spare part, we will also check the options for diagnosing and repairing your faulty part.
Available part conditions
Depending on current availability, we offer new original parts, new parts from previous stock, as well as reconditioned or used, tested variants. We will confirm the availability of a specific model, the price, the scope of delivery and the warranty before you place your order. The options listed do not imply that all variants are currently in stock.
Sales, repairs and purchase of surplus automation parts
We supply spare parts for industrial automation and assess options for diagnosing and repairing faulty equipment. You can also offer us any unwanted parts for purchase.
Purchase or repair of part 3RN2012-2BA30
Please provide the full order number, the required quantity and, in the case of a repair, a description of the fault. We will check the availability of the spare part as well as the options for diagnosis and repair.
Request purchase or repair of a part