
Siemens Industrial Controls 3RV2031-4EA10 Circuit breaker
The Siemens 3RV2031-4EA10 is a heavy-duty SIRIUS 3RV2 motor starter protector designed for robust motor protection in industrial environments. Engineered for Size S2 frames, this thermal-magnetic circuit breaker provides reliable current limiting and is optimized for use in load feeders. With an adjustable thermal overload release range of 22-32A and a fixed magnetic trip at 416A, it ensures precise protection against short circuits and overloads. This unit features Class 10 tripping characteristics, making it ideal for standard motor starting applications where rapid response to phase loss and overcurrent is critical for maintaining system uptime.
Built for the modern shop floor, the 3RV2031-4EA10 supports high-breaking capacities of 65kA at 480V and is suitable for both IE3 and IE4 high-efficiency motors. The screw-clamp connection system ensures a secure, vibration-proof termination, reducing maintenance requirements in high-stress cabinet installations. Operating via a rotary handle with integrated lockout capability, this MSP provides clear visible trip indication, allowing technicians to diagnose faults quickly. Whether utilized as a manual motor controller or a self-protected combination motor controller, this device remains a staple for contractors prioritizing field-proven durability and technical compliance in motor branch circuits.
Key Benefits- Adjustable FLA Range: Dial-in precise motor protection between 22A and 32A to match specific nameplate ratings.
- Type E Approval: Functions as a self-protected combination motor controller, simplifying circuit design by streamlining disconnect and protection into one unit.
- High Breaking Capacity: Rated for 65kA at 400V/480V, providing a high level of safety for standard and demanding switching capacities.
- Phase Loss Sensitivity: Integrated protection detects phase failures early to prevent winding damage in three-phase motors.
- Universal Compatibility: Fully compatible with the SIRIUS modular system, including 3RT2 contactors and 3RV29 infeed systems.
What is the difference between Class 10 and Class 20 tripping?
Class 10 devices, like this 3RV2031-4EA10, are designed to trip within 10 seconds or less at 600% of the maximum setting, which is standard for most industrial motor applications. Class 20 is reserved for heavy-starting loads that require more time to reach operating speed.
Can this MSP be used for single-phase loads?
Yes, but technicians must connect all three conducting paths in series to ensure the thermal-magnetic trip units function correctly and to avoid nuisance tripping from phase loss sensitivity.
Does this unit require a Type E terminal adapter?
For 3RV2031 models in the S2 frame with a current setting of 45A or less, they typically fulfill the spacing requirements for UL 508 without additional adapters, though local codes and specific configuration requirements should always be verified.
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 3RV2031-4EA10 Circuit breaker
The Siemens 3RV2031-4EA10 is a heavy-duty SIRIUS 3RV2 motor starter protector designed for robust motor protection in industrial environments. Engineered for Size S2 frames, this thermal-magnetic circuit breaker provides reliable current limiting and is optimized for use in load feeders. With an adjustable thermal overload release range of 22-32A and a fixed magnetic trip at 416A, it ensures precise protection against short circuits and overloads. This unit features Class 10 tripping characteristics, making it ideal for standard motor starting applications where rapid response to phase loss and overcurrent is critical for maintaining system uptime.
Built for the modern shop floor, the 3RV2031-4EA10 supports high-breaking capacities of 65kA at 480V and is suitable for both IE3 and IE4 high-efficiency motors. The screw-clamp connection system ensures a secure, vibration-proof termination, reducing maintenance requirements in high-stress cabinet installations. Operating via a rotary handle with integrated lockout capability, this MSP provides clear visible trip indication, allowing technicians to diagnose faults quickly. Whether utilized as a manual motor controller or a self-protected combination motor controller, this device remains a staple for contractors prioritizing field-proven durability and technical compliance in motor branch circuits.
Key Benefits- Adjustable FLA Range: Dial-in precise motor protection between 22A and 32A to match specific nameplate ratings.
- Type E Approval: Functions as a self-protected combination motor controller, simplifying circuit design by streamlining disconnect and protection into one unit.
- High Breaking Capacity: Rated for 65kA at 400V/480V, providing a high level of safety for standard and demanding switching capacities.
- Phase Loss Sensitivity: Integrated protection detects phase failures early to prevent winding damage in three-phase motors.
- Universal Compatibility: Fully compatible with the SIRIUS modular system, including 3RT2 contactors and 3RV29 infeed systems.
What is the difference between Class 10 and Class 20 tripping?
Class 10 devices, like this 3RV2031-4EA10, are designed to trip within 10 seconds or less at 600% of the maximum setting, which is standard for most industrial motor applications. Class 20 is reserved for heavy-starting loads that require more time to reach operating speed.
Can this MSP be used for single-phase loads?
Yes, but technicians must connect all three conducting paths in series to ensure the thermal-magnetic trip units function correctly and to avoid nuisance tripping from phase loss sensitivity.
Does this unit require a Type E terminal adapter?
For 3RV2031 models in the S2 frame with a current setting of 45A or less, they typically fulfill the spacing requirements for UL 508 without additional adapters, though local codes and specific configuration requirements should always be verified.
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
The Siemens 3RV2031-4EA10 is a heavy-duty SIRIUS 3RV2 motor starter protector designed for robust motor protection in industrial environments. Engineered for Size S2 frames, this thermal-magnetic circuit breaker provides reliable current limiting and is optimized for use in load feeders. With an adjustable thermal overload release range of 22-32A and a fixed magnetic trip at 416A, it ensures precise protection against short circuits and overloads. This unit features Class 10 tripping characteristics, making it ideal for standard motor starting applications where rapid response to phase loss and overcurrent is critical for maintaining system uptime.
Built for the modern shop floor, the 3RV2031-4EA10 supports high-breaking capacities of 65kA at 480V and is suitable for both IE3 and IE4 high-efficiency motors. The screw-clamp connection system ensures a secure, vibration-proof termination, reducing maintenance requirements in high-stress cabinet installations. Operating via a rotary handle with integrated lockout capability, this MSP provides clear visible trip indication, allowing technicians to diagnose faults quickly. Whether utilized as a manual motor controller or a self-protected combination motor controller, this device remains a staple for contractors prioritizing field-proven durability and technical compliance in motor branch circuits.
Key Benefits- Adjustable FLA Range: Dial-in precise motor protection between 22A and 32A to match specific nameplate ratings.
- Type E Approval: Functions as a self-protected combination motor controller, simplifying circuit design by streamlining disconnect and protection into one unit.
- High Breaking Capacity: Rated for 65kA at 400V/480V, providing a high level of safety for standard and demanding switching capacities.
- Phase Loss Sensitivity: Integrated protection detects phase failures early to prevent winding damage in three-phase motors.
- Universal Compatibility: Fully compatible with the SIRIUS modular system, including 3RT2 contactors and 3RV29 infeed systems.
What is the difference between Class 10 and Class 20 tripping?
Class 10 devices, like this 3RV2031-4EA10, are designed to trip within 10 seconds or less at 600% of the maximum setting, which is standard for most industrial motor applications. Class 20 is reserved for heavy-starting loads that require more time to reach operating speed.
Can this MSP be used for single-phase loads?
Yes, but technicians must connect all three conducting paths in series to ensure the thermal-magnetic trip units function correctly and to avoid nuisance tripping from phase loss sensitivity.
Does this unit require a Type E terminal adapter?
For 3RV2031 models in the S2 frame with a current setting of 45A or less, they typically fulfill the spacing requirements for UL 508 without additional adapters, though local codes and specific configuration requirements should always be verified.
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.












