Siemens 3RN2011-1BA30 thermistor motor protection relay

Brand name:Siemens 

Model: 3RN2011-1BA30

Payment: T/T    

Shipping Port: Xia men

Lead Time: In stock

Delivery time: 1-3 days

Payment: T/T 

Description

The Siemens 3RN2011-1BA30, part of the SIRIUS 3RN2 series, is a high-performance thermistor motor protection relay. This device provides direct temperature protection for the motor by monitoring a PTC thermistor sensor embedded in the motor windings. The relay responds quickly to situations where the motor experiences overload, stall, or insufficient cooling leading to temperature increases.

Application

Precision machine tool manufacturing plant: Protects high-speed spindle motors from overheating and burnout caused by frequent start-stop cycles.

Constant pressure water pump station manufacturing plant: Provides immediate power-off protection when the pump motor experiences dry running or blockage leading to temperature rise.

Automated conveyor equipment manufacturing plant: Installed in the drive system of logistics conveyor lines, it monitors motor winding temperature, reducing downtime maintenance costs.

Cold storage compressor manufacturing plant: Ensures that cold storage compressor motors remain within a safe operating temperature range under harsh loads.

Paper and pulp mill: Utilizes its 11g shock resistance to stably execute protection logic in harsh environments with high humidity and vibration.

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FAQ

Q: How can I visually determine the operating status of the 3RN2011-1BA30?
A: The relay has an LED display on the front panel. Users can quickly determine whether the motor is in an over-temperature alarm or normal operation state by observing the light color or flashing status.

Q: Can the 3RN2011-1BA30 handle 250V AC loads?
A: Yes, its output relay supports 250V voltage and a maximum current of 3A under AC-15 category.

Q: Is the 3RN2011-1BA30 reliable for use in high-vibration industrial environments?
A: Very reliable. This product has passed IEC 60068-2-6 vibration testing and 11g shock testing, and is designed specifically for heavy-duty industrial environments.

Q: What type of sensor should the 3RN2011-1BA30 be used with?
A: It is specifically designed to monitor the PTC (Positive Temperature Coefficient) thermistor sensor built into the motor windings.

Q: Can the 3RN2011-1BA30 be directly mounted on a DIN rail?
A: Yes, its compact width and standard package design allow it to be easily installed on standard rails inside distribution cabinets.

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