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3RN2011-1BA30
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Product Information
Product Describe
3RN20111BA30
THERMISTOR MOTOR PROTECTION RELAY
2 CHANGE OVER CONTACTS
MANUAL RESET
SCREW TERMINAL
THERMISTOR MOTOR PROTECTION RELAY
2 CHANGE OVER CONTACTS
MANUAL RESET
SCREW TERMINAL
Technical specifications for 3RN2011-1BA30
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Product Model3RN2011-1BA30
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Product ParametersTHERMISTOR MOTOR PROTECTION RELAY
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Tariff Code8537101190
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Country of originGERMANY
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Place of shipmentXiamen, China
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Estimated Shipping Size9.2x19.8x10.3cm
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ManufacturerSiemens
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Weight0.2 kg
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Contact ConfigurationDPDT
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Mount TypeDIN Rail
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Terminal TypeScrew
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IP RatingIP20
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Supply AC Voltage230V ac
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Contact Current5A
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Supply DC Voltage24 V dc
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Minimum Operating Temperature60°C
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Maximum Operating Temperature-25°C
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Factory New
These are new and current items that are procured from the manufacturer. -
New No Package
These parts are new. They have not been used, but their original packaging is no longer available. -
New In Opened Package
These parts are new. They have not been used, but their original packaging has been opened or the packaging is significantly aged. -
New In Sealed Package
Parts are new. They have not been used and still have their original package seal intact. -
New in Original Package
These parts are new. The packages were not originally sealed by their original manufacturer.
Warranty Period & Disclaimer
Amikon is not an authorized distributor unless otherwise specified, representative, or affiliate of the manufacturer of this product. All trademarks and documents are the property of their respective owners and are provided for identification and informational.
FAQs
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What is the SIEMENS 3RN2011-1BA30?+The Siemens 3RN2011-1BA30 is a standard SIRIUS thermistor motor protection relay. Designed for direct winding temperature monitoring using PTC sensors, it protects motors from overheating. from high-power motor cables to minimize interference.
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What is the 3RN2011-1BA30 supply voltage?+It operates on a rated control supply voltage of 24 V AC/DC.
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What are the outputs?+It is equipped with 2 changeover (CO) contacts for control and signaling.
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What kind of sensor monitoring does it provide?+The unit includes integrated wire-break and short-circuit monitoring for the sensor circuit to ensure reliable fault detection.
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Product
MORE INFORMATION
Overview
Manuals
Technical notes
Product Applications
Wiring & Electrical Connection
Features:
- Dual-changeover contacts allow for various control options
- ATEX certification for safety in hazardous environments
- Current range from 0.2 to 1A for accurate monitoring
- Screw terminals provide secure and straightforward connections
- Galvanic isolation safeguards sensitive components
- LED indicators offer real-time status updates
The 3RN2011-1BA30 SIEMENS THERMISTOR MOTOR PROTECTION RELAY may still be available for purchase and support from Amikon Limited beyond End-Of-Life (EOL) by the manufacturer (OEM).
SIEMENS 3RN2011-1BA30 THERMISTOR MOTOR PROTECTION RELAY Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
The Siemens 3RN2011-1BA30 is a SIRIUS 3RN2 standard thermistor motor protection relay. Designed to prevent motor overheating, it directly monitors winding temperatures using PTC sensors and features ATEX approval, making it ideal for standard and potentially explosive environments. Can be achieved by momentarily switching the supply voltage off and back on (for at least 500 ms) after the PTC sensor has cooled down.
- Chemical & Petrochemical Plants:Explosion-proof motor protection for pumps/mixers
- Oil & Gas Refineries:Hazardous area motor temp monitoring for upstream/downstream
- Food & Beverage Processing:Explosive organic dust protection for flour/sugar mills
- Woodworking & Sawmills:Overheating protection in sawdust-heavy environments
- Plastic Manufacturing:High-ambient temp protection for extruders/molding machines
- Water & Wastewater Treatment:Prevents overheating from dry running or clogged inlets
This content has been produced using multiple sources.Amikon takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
Control Supply: Connect 24V AC/DC to terminals A1(+) and A2(-).PTC Sensor Circuit: Connect the motor's PTC thermistor sensors to terminals T1 and T2. The unit monitors this circuit for both open-circuits (wire breaks) and short-circuits.Output Contacts: Features 2 changeover (CO) contacts (terminals 11/12/14 and 21/22/24) for tripping contactors or sending alarm signals.Terminal Specs: Use screw-type terminals with a tightening torque of 0.6 to 0.8 N·m. It supports solid or stranded wires from 20 to 12 AWG.
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Whether you're maintaining legacy systems or building future-ready projects, Amikon Limited is your dependable partner in precision and performance.
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