Siemens Industrial Controls 3RU2116-1CB0 Relay
The Siemens SIRIUS 3RU2116-1CB0 is a heavy-duty thermal overload relay engineered for current-dependent protection in Size S00 motor feeders. Designed for contactor mounting, this unit integrates seamlessly with 3RT2015 through 3RT2018 contactors, providing a precise 1.8-2.5A adjustable current range. As a Class 10 device, it ensures a reliable trip characteristic within ten seconds during overcurrent events, effectively safeguarding three-phase motors against thermal damage from overload and phase failure conditions. For maximum field flexibility, the relay features a switchable Manual-Automatic-Reset mechanism and built-in auxiliary contacts (1 NO + 1 NC) for fault signaling and contactor disconnection. The screw terminal connections provide high vibration resistance, making this SIRIUS innovation optimal for demanding HVACR and industrial control panels where long-term stability and motor protection are non-negotiable.
Key Benefits for Contractors:- Precise Current Adjustment: Dial-in the exact 1.8-2.5A full-load amps (FLA) to match specific motor nameplate data.
- Phase Loss Sensitivity: Advanced bimetallic strips detect phase asymmetry and loss, tripping the circuit before winding damage occurs.
- Direct Contactor Integration: Specifically designed for direct mounting to S00 frame contactors to save rail space and reduce wiring time.
- Ambient Temperature Compensation: Maintains accurate tripping performance in environments ranging from -40 °C to +70 °C, ideal for rooftop units.
Can this relay be used with a frequency converter?
While 3RU2 relays are bimetallic, using them on the load side of frequency converters requires attention to harmonics. For variable speed drives, ensure the operating frequency stays within the 50-60 Hz rated range for maximum accuracy.
What is the difference between Manual and Auto reset modes?
In Manual mode, the blue reset button must be physically pressed after a trip. Automatic mode resets the unit once the bimetal strips cool down, which is useful for remote locations but requires an external control circuit to prevent immediate motor restarting.
Does this unit protect against short circuits?
No, this is a thermal overload relay designed for overcurrent. You must pair the 3RU2116-1CB0 with appropriate fuses or a 3RV2 motor starter protector for short-circuit and branch circuit protection.
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.
Siemens Industrial Controls 3RU2116-1CB0 Relay
The Siemens SIRIUS 3RU2116-1CB0 is a heavy-duty thermal overload relay engineered for current-dependent protection in Size S00 motor feeders. Designed for contactor mounting, this unit integrates seamlessly with 3RT2015 through 3RT2018 contactors, providing a precise 1.8-2.5A adjustable current range. As a Class 10 device, it ensures a reliable trip characteristic within ten seconds during overcurrent events, effectively safeguarding three-phase motors against thermal damage from overload and phase failure conditions. For maximum field flexibility, the relay features a switchable Manual-Automatic-Reset mechanism and built-in auxiliary contacts (1 NO + 1 NC) for fault signaling and contactor disconnection. The screw terminal connections provide high vibration resistance, making this SIRIUS innovation optimal for demanding HVACR and industrial control panels where long-term stability and motor protection are non-negotiable.
Key Benefits for Contractors:- Precise Current Adjustment: Dial-in the exact 1.8-2.5A full-load amps (FLA) to match specific motor nameplate data.
- Phase Loss Sensitivity: Advanced bimetallic strips detect phase asymmetry and loss, tripping the circuit before winding damage occurs.
- Direct Contactor Integration: Specifically designed for direct mounting to S00 frame contactors to save rail space and reduce wiring time.
- Ambient Temperature Compensation: Maintains accurate tripping performance in environments ranging from -40 °C to +70 °C, ideal for rooftop units.
Can this relay be used with a frequency converter?
While 3RU2 relays are bimetallic, using them on the load side of frequency converters requires attention to harmonics. For variable speed drives, ensure the operating frequency stays within the 50-60 Hz rated range for maximum accuracy.
What is the difference between Manual and Auto reset modes?
In Manual mode, the blue reset button must be physically pressed after a trip. Automatic mode resets the unit once the bimetal strips cool down, which is useful for remote locations but requires an external control circuit to prevent immediate motor restarting.
Does this unit protect against short circuits?
No, this is a thermal overload relay designed for overcurrent. You must pair the 3RU2116-1CB0 with appropriate fuses or a 3RV2 motor starter protector for short-circuit and branch circuit protection.
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
Product Information
Shipping & Returns
Shipping & Returns
Description
The Siemens SIRIUS 3RU2116-1CB0 is a heavy-duty thermal overload relay engineered for current-dependent protection in Size S00 motor feeders. Designed for contactor mounting, this unit integrates seamlessly with 3RT2015 through 3RT2018 contactors, providing a precise 1.8-2.5A adjustable current range. As a Class 10 device, it ensures a reliable trip characteristic within ten seconds during overcurrent events, effectively safeguarding three-phase motors against thermal damage from overload and phase failure conditions. For maximum field flexibility, the relay features a switchable Manual-Automatic-Reset mechanism and built-in auxiliary contacts (1 NO + 1 NC) for fault signaling and contactor disconnection. The screw terminal connections provide high vibration resistance, making this SIRIUS innovation optimal for demanding HVACR and industrial control panels where long-term stability and motor protection are non-negotiable.
Key Benefits for Contractors:- Precise Current Adjustment: Dial-in the exact 1.8-2.5A full-load amps (FLA) to match specific motor nameplate data.
- Phase Loss Sensitivity: Advanced bimetallic strips detect phase asymmetry and loss, tripping the circuit before winding damage occurs.
- Direct Contactor Integration: Specifically designed for direct mounting to S00 frame contactors to save rail space and reduce wiring time.
- Ambient Temperature Compensation: Maintains accurate tripping performance in environments ranging from -40 °C to +70 °C, ideal for rooftop units.
Can this relay be used with a frequency converter?
While 3RU2 relays are bimetallic, using them on the load side of frequency converters requires attention to harmonics. For variable speed drives, ensure the operating frequency stays within the 50-60 Hz rated range for maximum accuracy.
What is the difference between Manual and Auto reset modes?
In Manual mode, the blue reset button must be physically pressed after a trip. Automatic mode resets the unit once the bimetal strips cool down, which is useful for remote locations but requires an external control circuit to prevent immediate motor restarting.
Does this unit protect against short circuits?
No, this is a thermal overload relay designed for overcurrent. You must pair the 3RU2116-1CB0 with appropriate fuses or a 3RV2 motor starter protector for short-circuit and branch circuit protection.
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.
