Siemens Industrial Controls 3RV2031-4JB10 Circuit breaker
For high-demand motor applications, the Siemens SIRIUS 3RV2031-4JB10 is a heavy-duty S2 frame manual motor starter designed for precision circuit protection. This unit handles a current range of 54 to 65 Amps and provides absolute reliability for three-phase motor protection. As an HVACR technician, you know the value of a high-performance Class 20 tripping characteristic, which provides the necessary time delay for motors with longer startup cycles or high inertia loads, preventing nuisance tripping while ensuring thermal overload protection. Built with a robust screw terminal connection, it ensures secure, low-resistance wiring in high-vibration environments.
The 3RV2031-4JB10 motor starter protector features a high short-circuit breaking capacity of up to 65kA at 400V, making it a critical component for industrial-grade feeders. Its integrated magnetic trip responds within milliseconds to faults exceeding 13 times the maximum current setting, isolating the load to prevent catastrophic equipment damage. Designed for DIN rail mounting, the compact 55mm width allows for efficient panel layout and seamless integration with 3RT2 series contactors. The front-mounted rotary handle provides clear status indication (ON/OFF/TRIPPED) and supports lockout/tagout (LOTO) procedures for safe field maintenance.
Key Benefits for HVACR Contractors:
- Precise Current Adjustment: Dial settings from 54-65A allow for exact matching to motor FLA (Full Load Amps) for optimized protection.
- Class 20 Protection: Enhanced delay for heavy-duty startups, ideal for large compressors and industrial blowers.
- Phase Loss Sensitivity: Automatically detects unbalanced loads or phase failures to prevent motor burnout.
- Type E Certification: When used with appropriate line-side terminals, it functions as a Self-Protected Combination Motor Controller.
- Ambient Temperature Compensation: Maintains reliable trip curves even in mechanical rooms reaching up to 140°F (60°C).
Common Questions Regarding the 3RV2031-4JB10:
Does this unit support single-phase motors?
Yes, however, to ensure accurate overload protection, all three poles must be wired in series to satisfy the internal phase-monitoring sensors.
What is the difference between Class 10 and Class 20 tripping?
A Class 20 trip allows the motor to draw starting current for up to 20 seconds at 6 times the setting, whereas Class 10 trips within 10 seconds. This makes the 4JB10 better suited for high-torque HVACR starts.
Can I add auxiliary contacts to this breaker?
Absolutely. The SIRIUS 3RV2 series supports lateral and transverse auxiliary switches for remote signaling and control circuit integration.
This item is not eligible for free shipping.
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: $480.04
-65%$480.04
$168.01Siemens Industrial Controls 3RV2031-4JB10 Circuit breaker
For high-demand motor applications, the Siemens SIRIUS 3RV2031-4JB10 is a heavy-duty S2 frame manual motor starter designed for precision circuit protection. This unit handles a current range of 54 to 65 Amps and provides absolute reliability for three-phase motor protection. As an HVACR technician, you know the value of a high-performance Class 20 tripping characteristic, which provides the necessary time delay for motors with longer startup cycles or high inertia loads, preventing nuisance tripping while ensuring thermal overload protection. Built with a robust screw terminal connection, it ensures secure, low-resistance wiring in high-vibration environments.
The 3RV2031-4JB10 motor starter protector features a high short-circuit breaking capacity of up to 65kA at 400V, making it a critical component for industrial-grade feeders. Its integrated magnetic trip responds within milliseconds to faults exceeding 13 times the maximum current setting, isolating the load to prevent catastrophic equipment damage. Designed for DIN rail mounting, the compact 55mm width allows for efficient panel layout and seamless integration with 3RT2 series contactors. The front-mounted rotary handle provides clear status indication (ON/OFF/TRIPPED) and supports lockout/tagout (LOTO) procedures for safe field maintenance.
Key Benefits for HVACR Contractors:
- Precise Current Adjustment: Dial settings from 54-65A allow for exact matching to motor FLA (Full Load Amps) for optimized protection.
- Class 20 Protection: Enhanced delay for heavy-duty startups, ideal for large compressors and industrial blowers.
- Phase Loss Sensitivity: Automatically detects unbalanced loads or phase failures to prevent motor burnout.
- Type E Certification: When used with appropriate line-side terminals, it functions as a Self-Protected Combination Motor Controller.
- Ambient Temperature Compensation: Maintains reliable trip curves even in mechanical rooms reaching up to 140°F (60°C).
Common Questions Regarding the 3RV2031-4JB10:
Does this unit support single-phase motors?
Yes, however, to ensure accurate overload protection, all three poles must be wired in series to satisfy the internal phase-monitoring sensors.
What is the difference between Class 10 and Class 20 tripping?
A Class 20 trip allows the motor to draw starting current for up to 20 seconds at 6 times the setting, whereas Class 10 trips within 10 seconds. This makes the 4JB10 better suited for high-torque HVACR starts.
Can I add auxiliary contacts to this breaker?
Absolutely. The SIRIUS 3RV2 series supports lateral and transverse auxiliary switches for remote signaling and control circuit integration.
This item is not eligible for free shipping.
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
For high-demand motor applications, the Siemens SIRIUS 3RV2031-4JB10 is a heavy-duty S2 frame manual motor starter designed for precision circuit protection. This unit handles a current range of 54 to 65 Amps and provides absolute reliability for three-phase motor protection. As an HVACR technician, you know the value of a high-performance Class 20 tripping characteristic, which provides the necessary time delay for motors with longer startup cycles or high inertia loads, preventing nuisance tripping while ensuring thermal overload protection. Built with a robust screw terminal connection, it ensures secure, low-resistance wiring in high-vibration environments.
The 3RV2031-4JB10 motor starter protector features a high short-circuit breaking capacity of up to 65kA at 400V, making it a critical component for industrial-grade feeders. Its integrated magnetic trip responds within milliseconds to faults exceeding 13 times the maximum current setting, isolating the load to prevent catastrophic equipment damage. Designed for DIN rail mounting, the compact 55mm width allows for efficient panel layout and seamless integration with 3RT2 series contactors. The front-mounted rotary handle provides clear status indication (ON/OFF/TRIPPED) and supports lockout/tagout (LOTO) procedures for safe field maintenance.
Key Benefits for HVACR Contractors:
- Precise Current Adjustment: Dial settings from 54-65A allow for exact matching to motor FLA (Full Load Amps) for optimized protection.
- Class 20 Protection: Enhanced delay for heavy-duty startups, ideal for large compressors and industrial blowers.
- Phase Loss Sensitivity: Automatically detects unbalanced loads or phase failures to prevent motor burnout.
- Type E Certification: When used with appropriate line-side terminals, it functions as a Self-Protected Combination Motor Controller.
- Ambient Temperature Compensation: Maintains reliable trip curves even in mechanical rooms reaching up to 140°F (60°C).
Common Questions Regarding the 3RV2031-4JB10:
Does this unit support single-phase motors?
Yes, however, to ensure accurate overload protection, all three poles must be wired in series to satisfy the internal phase-monitoring sensors.
What is the difference between Class 10 and Class 20 tripping?
A Class 20 trip allows the motor to draw starting current for up to 20 seconds at 6 times the setting, whereas Class 10 trips within 10 seconds. This makes the 4JB10 better suited for high-torque HVACR starts.
Can I add auxiliary contacts to this breaker?
Absolutely. The SIRIUS 3RV2 series supports lateral and transverse auxiliary switches for remote signaling and control circuit integration.
This item is not eligible for free shipping.
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.
