Siemens Industrial Controls 3RB3026-1VB0 Relay
For industrial motor protection applications, the Siemens 3RB3026-1VB0 solid-state overload relay provides precise thermal protection for three-phase motors. Specifically engineered for the SIRIUS Innovation S0 frame size, this 10-40A overload relay features an electronic evaluation system that offers significantly higher accuracy than traditional thermal bimetal units. It mounts directly to Siemens 3RT202 contactors, ensuring a compact and reliable load feeder assembly. By utilizing Class 10 tripping characteristics, it effectively safeguards motors against excessive temperature rise during normal starting conditions while providing integrated phase failure protection and asymmetry detection.
The SIRIUS 3RB3026-1VB0 is optimized for energy efficiency, with a low power loss of only 3 watts under full load. In the field, technicians value the flexibility of the manual/automatic reset selector and the visibility of the switch position indicator. The unit’s internal power supply eliminates the need for external control voltage, simplifying wiring for contractors. Designed for rugged motor starter configurations, it maintains stable inverse-time delayed protection across its entire wide-range adjustment scale, making it a versatile choice for a variety of S0 motor starter applications.
Key Benefits- Compatible with Siemens 3RT2023 to 3RT2028 contactors for seamless integration in S0 frame motor starters.
- Advanced electronic overload relay technology provides superior accuracy and lower thermal dissipation compared to bimetallic alternatives.
- Built-in phase loss protection and unbalance detection prevent motor burnout caused by single-phasing or power supply issues.
- Wide 4:1 adjustment range (10A to 40A) reduces inventory requirements for different motor horsepower ratings.
- Integrated 1 NO + 1 NC auxiliary contacts enable easy signaling for fault monitoring and pilot light circuits.
Which contactors are compatible with the 3RB3026-1VB0?
This relay is secondary-mounted to Siemens Sirius S0 size contactors, specifically the 3RT202 series (3RT2023 through 3RT2028).
Can I use this relay for heavy-duty starting applications?
This model is rated for Class 10 tripping, suitable for standard motor starts. For heavy-duty or long-duration starting requirements, consider the Class 20 variant, such as the 3RB3026-2VB0.
Does this unit require an external power source to operate the electronics?
No, the 3RB3026-1VB0 features an internal power supply, drawing the necessary operating power directly from the main current 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.
Siemens Industrial Controls 3RB3026-1VB0 Relay
For industrial motor protection applications, the Siemens 3RB3026-1VB0 solid-state overload relay provides precise thermal protection for three-phase motors. Specifically engineered for the SIRIUS Innovation S0 frame size, this 10-40A overload relay features an electronic evaluation system that offers significantly higher accuracy than traditional thermal bimetal units. It mounts directly to Siemens 3RT202 contactors, ensuring a compact and reliable load feeder assembly. By utilizing Class 10 tripping characteristics, it effectively safeguards motors against excessive temperature rise during normal starting conditions while providing integrated phase failure protection and asymmetry detection.
The SIRIUS 3RB3026-1VB0 is optimized for energy efficiency, with a low power loss of only 3 watts under full load. In the field, technicians value the flexibility of the manual/automatic reset selector and the visibility of the switch position indicator. The unit’s internal power supply eliminates the need for external control voltage, simplifying wiring for contractors. Designed for rugged motor starter configurations, it maintains stable inverse-time delayed protection across its entire wide-range adjustment scale, making it a versatile choice for a variety of S0 motor starter applications.
Key Benefits- Compatible with Siemens 3RT2023 to 3RT2028 contactors for seamless integration in S0 frame motor starters.
- Advanced electronic overload relay technology provides superior accuracy and lower thermal dissipation compared to bimetallic alternatives.
- Built-in phase loss protection and unbalance detection prevent motor burnout caused by single-phasing or power supply issues.
- Wide 4:1 adjustment range (10A to 40A) reduces inventory requirements for different motor horsepower ratings.
- Integrated 1 NO + 1 NC auxiliary contacts enable easy signaling for fault monitoring and pilot light circuits.
Which contactors are compatible with the 3RB3026-1VB0?
This relay is secondary-mounted to Siemens Sirius S0 size contactors, specifically the 3RT202 series (3RT2023 through 3RT2028).
Can I use this relay for heavy-duty starting applications?
This model is rated for Class 10 tripping, suitable for standard motor starts. For heavy-duty or long-duration starting requirements, consider the Class 20 variant, such as the 3RB3026-2VB0.
Does this unit require an external power source to operate the electronics?
No, the 3RB3026-1VB0 features an internal power supply, drawing the necessary operating power directly from the main current 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.
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Description
For industrial motor protection applications, the Siemens 3RB3026-1VB0 solid-state overload relay provides precise thermal protection for three-phase motors. Specifically engineered for the SIRIUS Innovation S0 frame size, this 10-40A overload relay features an electronic evaluation system that offers significantly higher accuracy than traditional thermal bimetal units. It mounts directly to Siemens 3RT202 contactors, ensuring a compact and reliable load feeder assembly. By utilizing Class 10 tripping characteristics, it effectively safeguards motors against excessive temperature rise during normal starting conditions while providing integrated phase failure protection and asymmetry detection.
The SIRIUS 3RB3026-1VB0 is optimized for energy efficiency, with a low power loss of only 3 watts under full load. In the field, technicians value the flexibility of the manual/automatic reset selector and the visibility of the switch position indicator. The unit’s internal power supply eliminates the need for external control voltage, simplifying wiring for contractors. Designed for rugged motor starter configurations, it maintains stable inverse-time delayed protection across its entire wide-range adjustment scale, making it a versatile choice for a variety of S0 motor starter applications.
Key Benefits- Compatible with Siemens 3RT2023 to 3RT2028 contactors for seamless integration in S0 frame motor starters.
- Advanced electronic overload relay technology provides superior accuracy and lower thermal dissipation compared to bimetallic alternatives.
- Built-in phase loss protection and unbalance detection prevent motor burnout caused by single-phasing or power supply issues.
- Wide 4:1 adjustment range (10A to 40A) reduces inventory requirements for different motor horsepower ratings.
- Integrated 1 NO + 1 NC auxiliary contacts enable easy signaling for fault monitoring and pilot light circuits.
Which contactors are compatible with the 3RB3026-1VB0?
This relay is secondary-mounted to Siemens Sirius S0 size contactors, specifically the 3RT202 series (3RT2023 through 3RT2028).
Can I use this relay for heavy-duty starting applications?
This model is rated for Class 10 tripping, suitable for standard motor starts. For heavy-duty or long-duration starting requirements, consider the Class 20 variant, such as the 3RB3026-2VB0.
Does this unit require an external power source to operate the electronics?
No, the 3RB3026-1VB0 features an internal power supply, drawing the necessary operating power directly from the main current 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.
