
Siemens Industrial Controls 3RU2116-1HB0 Overload Relay
The Siemens SIRIUS 3RU2116-1HB0 is a bimetallic thermal overload relay designed for reliable motor protection in Size S00 configurations. This unit features an adjustable current setting range of 5.5 to 8.0 Amps, making it the standard choice for safeguarding small 3-phase AC motors against overcurrent and phase failure conditions. Engineered for direct mounting to SIRIUS 3RT2015 through 3RT2018 contactors, it ensures a compact, space-saving footprint within the control cabinet. As a Class 10 trip device, it provides inverse-time delayed protection, tripping in under 10 seconds during an overload event to prevent terminal damage and winding burnout. The screw terminal design provides secure, vibration-resistant main circuit connection and includes integrated 1 NO + 1 NC auxiliary contacts for signaling and disconnecting the coil circuit. Technicians can easily toggle between manual and automatic reset modes using the blue selector, allowing for flexible troubleshooting and system recovery in industrial HVACR applications.
Key Benefits- Precise Protection: Adjustable 5.5-8A setting range allows for exact matching with motor Full Load Amps (FLA) to prevent nuisance tripping.
- Phase Failure Sensitivity: Advanced bimetal mechanism detects phase asymmetry and single-phasing to disconnect loads before expensive motor damage occurs.
- Simplified Installation: Built for direct integration with SIRIUS Size S00 contactors, reducing wiring labor and minimizing enclosure space.
- Versatile Reset Options: Features a selectable Manual/Auto reset dial and a dedicated Test/Stop slide for field diagnostics.
- Global Compliance: Meets IEC and UL/CSA standards, ensuring specialized performance in hazardous and industrial environments.
What contactors are compatible with the 3RU2116-1HB0?
This relay is optimized for direct mounting on Siemens SIRIUS Size S00 contactors, specifically the 3RT2015, 3RT2016, 3RT2017, and 3RT2018 series.
Does this relay protect against phase loss?
Yes, the 3RU2116-1HB0 features phase-failure sensitivity. If one phase is lost, the internal bimetal strips deflect unevenly, triggering the trip mechanism to protect the remaining motor windings.
How do I test the relay functionality without an actual overload?
You can use the integrated TEST slide on the front of the unit. Moving the slide simulates a trip condition, allowing you to verify that the 1 NO / 1 NC auxiliary contacts are properly breaking the control circuit.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $72.30
-65%$72.30
$25.30Siemens Industrial Controls 3RU2116-1HB0 Overload Relay
The Siemens SIRIUS 3RU2116-1HB0 is a bimetallic thermal overload relay designed for reliable motor protection in Size S00 configurations. This unit features an adjustable current setting range of 5.5 to 8.0 Amps, making it the standard choice for safeguarding small 3-phase AC motors against overcurrent and phase failure conditions. Engineered for direct mounting to SIRIUS 3RT2015 through 3RT2018 contactors, it ensures a compact, space-saving footprint within the control cabinet. As a Class 10 trip device, it provides inverse-time delayed protection, tripping in under 10 seconds during an overload event to prevent terminal damage and winding burnout. The screw terminal design provides secure, vibration-resistant main circuit connection and includes integrated 1 NO + 1 NC auxiliary contacts for signaling and disconnecting the coil circuit. Technicians can easily toggle between manual and automatic reset modes using the blue selector, allowing for flexible troubleshooting and system recovery in industrial HVACR applications.
Key Benefits- Precise Protection: Adjustable 5.5-8A setting range allows for exact matching with motor Full Load Amps (FLA) to prevent nuisance tripping.
- Phase Failure Sensitivity: Advanced bimetal mechanism detects phase asymmetry and single-phasing to disconnect loads before expensive motor damage occurs.
- Simplified Installation: Built for direct integration with SIRIUS Size S00 contactors, reducing wiring labor and minimizing enclosure space.
- Versatile Reset Options: Features a selectable Manual/Auto reset dial and a dedicated Test/Stop slide for field diagnostics.
- Global Compliance: Meets IEC and UL/CSA standards, ensuring specialized performance in hazardous and industrial environments.
What contactors are compatible with the 3RU2116-1HB0?
This relay is optimized for direct mounting on Siemens SIRIUS Size S00 contactors, specifically the 3RT2015, 3RT2016, 3RT2017, and 3RT2018 series.
Does this relay protect against phase loss?
Yes, the 3RU2116-1HB0 features phase-failure sensitivity. If one phase is lost, the internal bimetal strips deflect unevenly, triggering the trip mechanism to protect the remaining motor windings.
How do I test the relay functionality without an actual overload?
You can use the integrated TEST slide on the front of the unit. Moving the slide simulates a trip condition, allowing you to verify that the 1 NO / 1 NC auxiliary contacts are properly breaking the control circuit.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
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Description
The Siemens SIRIUS 3RU2116-1HB0 is a bimetallic thermal overload relay designed for reliable motor protection in Size S00 configurations. This unit features an adjustable current setting range of 5.5 to 8.0 Amps, making it the standard choice for safeguarding small 3-phase AC motors against overcurrent and phase failure conditions. Engineered for direct mounting to SIRIUS 3RT2015 through 3RT2018 contactors, it ensures a compact, space-saving footprint within the control cabinet. As a Class 10 trip device, it provides inverse-time delayed protection, tripping in under 10 seconds during an overload event to prevent terminal damage and winding burnout. The screw terminal design provides secure, vibration-resistant main circuit connection and includes integrated 1 NO + 1 NC auxiliary contacts for signaling and disconnecting the coil circuit. Technicians can easily toggle between manual and automatic reset modes using the blue selector, allowing for flexible troubleshooting and system recovery in industrial HVACR applications.
Key Benefits- Precise Protection: Adjustable 5.5-8A setting range allows for exact matching with motor Full Load Amps (FLA) to prevent nuisance tripping.
- Phase Failure Sensitivity: Advanced bimetal mechanism detects phase asymmetry and single-phasing to disconnect loads before expensive motor damage occurs.
- Simplified Installation: Built for direct integration with SIRIUS Size S00 contactors, reducing wiring labor and minimizing enclosure space.
- Versatile Reset Options: Features a selectable Manual/Auto reset dial and a dedicated Test/Stop slide for field diagnostics.
- Global Compliance: Meets IEC and UL/CSA standards, ensuring specialized performance in hazardous and industrial environments.
What contactors are compatible with the 3RU2116-1HB0?
This relay is optimized for direct mounting on Siemens SIRIUS Size S00 contactors, specifically the 3RT2015, 3RT2016, 3RT2017, and 3RT2018 series.
Does this relay protect against phase loss?
Yes, the 3RU2116-1HB0 features phase-failure sensitivity. If one phase is lost, the internal bimetal strips deflect unevenly, triggering the trip mechanism to protect the remaining motor windings.
How do I test the relay functionality without an actual overload?
You can use the integrated TEST slide on the front of the unit. Moving the slide simulates a trip condition, allowing you to verify that the 1 NO / 1 NC auxiliary contacts are properly breaking the control circuit.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












