Siemens Industrial Controls 3RW4027-1BB14 Starter
In the field, reliability and precise control are non-negotiable for three-phase asynchronous motors. The Siemens 3RW4027-1BB14 SIRIUS Soft Starter is a solid-state starter engineered for basic performance in demanding HVACR and industrial environments. This SIRIUS 3RW40 soft starter provides a compact, 45mm width (S0 frame) solution for soft starting and stopping, effectively eliminating current spikes and mechanical stress common in across-the-line starts. Rated for an operational current of 32A at 40°C, this unit manages up to 15 kW (20 HP) at 400V applications. It features a unique 2-phase control method that maintains minimum current values across all phases while eliminating DC components. The integrated bypass contact system reduces heat dissipation during operation, allowing for a more compact enclosure design. With a control supply voltage of 110-230V AC/DC and an operating voltage range of 200-480V AC, this 3RW40271BB14 Siemens starter is built for electrical ruggedness. It also includes adjustable current limiting and intrinsic device protection to safeguard against motor overloads and thyristor overheating in high-cycle applications.
Key Benefits for Contractors- System Longevity: Reduces mechanical wear on gearboxes, belts, and bearings by providing a gentle motor starting sequence.
- Integrated Bypass: The 3RW4027-1BB14 features internal bypass contacts that engage after the ramp-up, minimizing power loss and heat within the cabinet.
- Electronic Overload Protection: Eliminates the need for separate overload relays, saving rail space and reducing wiring complexity.
- Adjustable Parameters: Simplifies commissioning with potentiometers for starting voltage, ramp-up time (up to 20s), and current limit.
- Hazardous Area Compliance: ATEX-certified for the starting of explosion-proof motors with "increased safety" (EEx e) protection.
How do I handle a "STATE/BYPASS FAILURE" red LED indication?
This fault typically occurs if the internal bypass contacts fail to close after the ramp-up time. Verify your parameter settings; if the ramp-up time is set too long or the starting voltage is too low, the motor may not reach full speed, preventing the bypass from engaging. Ensure the motor is not undersized, as a current draw below 20% of the rated setting can trigger a trip.
Can I use this starter for high-inertia loads like large fans?
Yes, but you must select the correct tripping class (Class 10, 20, or 30). For heavy-duty starts, the Class 20 or 30 settings allow for longer ramp times without triggering a thermal overload trip, provided the thermal capacity of the thyristors is not exceeded.
What is the proper reset procedure after a thermal trip?
The unit supports automatic, manual, and remote reset configuration. After an overload event, a recovery time is required for the thermal motor model to cool before a restart is permitted. If the "OVERLOAD" LED is flashing, check your Current (Ie) and Class settings against the motor nameplate.
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: $1,330.57
-65%$1,330.57
$465.70Siemens Industrial Controls 3RW4027-1BB14 Starter
In the field, reliability and precise control are non-negotiable for three-phase asynchronous motors. The Siemens 3RW4027-1BB14 SIRIUS Soft Starter is a solid-state starter engineered for basic performance in demanding HVACR and industrial environments. This SIRIUS 3RW40 soft starter provides a compact, 45mm width (S0 frame) solution for soft starting and stopping, effectively eliminating current spikes and mechanical stress common in across-the-line starts. Rated for an operational current of 32A at 40°C, this unit manages up to 15 kW (20 HP) at 400V applications. It features a unique 2-phase control method that maintains minimum current values across all phases while eliminating DC components. The integrated bypass contact system reduces heat dissipation during operation, allowing for a more compact enclosure design. With a control supply voltage of 110-230V AC/DC and an operating voltage range of 200-480V AC, this 3RW40271BB14 Siemens starter is built for electrical ruggedness. It also includes adjustable current limiting and intrinsic device protection to safeguard against motor overloads and thyristor overheating in high-cycle applications.
Key Benefits for Contractors- System Longevity: Reduces mechanical wear on gearboxes, belts, and bearings by providing a gentle motor starting sequence.
- Integrated Bypass: The 3RW4027-1BB14 features internal bypass contacts that engage after the ramp-up, minimizing power loss and heat within the cabinet.
- Electronic Overload Protection: Eliminates the need for separate overload relays, saving rail space and reducing wiring complexity.
- Adjustable Parameters: Simplifies commissioning with potentiometers for starting voltage, ramp-up time (up to 20s), and current limit.
- Hazardous Area Compliance: ATEX-certified for the starting of explosion-proof motors with "increased safety" (EEx e) protection.
How do I handle a "STATE/BYPASS FAILURE" red LED indication?
This fault typically occurs if the internal bypass contacts fail to close after the ramp-up time. Verify your parameter settings; if the ramp-up time is set too long or the starting voltage is too low, the motor may not reach full speed, preventing the bypass from engaging. Ensure the motor is not undersized, as a current draw below 20% of the rated setting can trigger a trip.
Can I use this starter for high-inertia loads like large fans?
Yes, but you must select the correct tripping class (Class 10, 20, or 30). For heavy-duty starts, the Class 20 or 30 settings allow for longer ramp times without triggering a thermal overload trip, provided the thermal capacity of the thyristors is not exceeded.
What is the proper reset procedure after a thermal trip?
The unit supports automatic, manual, and remote reset configuration. After an overload event, a recovery time is required for the thermal motor model to cool before a restart is permitted. If the "OVERLOAD" LED is flashing, check your Current (Ie) and Class settings against the motor nameplate.
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.
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Description
In the field, reliability and precise control are non-negotiable for three-phase asynchronous motors. The Siemens 3RW4027-1BB14 SIRIUS Soft Starter is a solid-state starter engineered for basic performance in demanding HVACR and industrial environments. This SIRIUS 3RW40 soft starter provides a compact, 45mm width (S0 frame) solution for soft starting and stopping, effectively eliminating current spikes and mechanical stress common in across-the-line starts. Rated for an operational current of 32A at 40°C, this unit manages up to 15 kW (20 HP) at 400V applications. It features a unique 2-phase control method that maintains minimum current values across all phases while eliminating DC components. The integrated bypass contact system reduces heat dissipation during operation, allowing for a more compact enclosure design. With a control supply voltage of 110-230V AC/DC and an operating voltage range of 200-480V AC, this 3RW40271BB14 Siemens starter is built for electrical ruggedness. It also includes adjustable current limiting and intrinsic device protection to safeguard against motor overloads and thyristor overheating in high-cycle applications.
Key Benefits for Contractors- System Longevity: Reduces mechanical wear on gearboxes, belts, and bearings by providing a gentle motor starting sequence.
- Integrated Bypass: The 3RW4027-1BB14 features internal bypass contacts that engage after the ramp-up, minimizing power loss and heat within the cabinet.
- Electronic Overload Protection: Eliminates the need for separate overload relays, saving rail space and reducing wiring complexity.
- Adjustable Parameters: Simplifies commissioning with potentiometers for starting voltage, ramp-up time (up to 20s), and current limit.
- Hazardous Area Compliance: ATEX-certified for the starting of explosion-proof motors with "increased safety" (EEx e) protection.
How do I handle a "STATE/BYPASS FAILURE" red LED indication?
This fault typically occurs if the internal bypass contacts fail to close after the ramp-up time. Verify your parameter settings; if the ramp-up time is set too long or the starting voltage is too low, the motor may not reach full speed, preventing the bypass from engaging. Ensure the motor is not undersized, as a current draw below 20% of the rated setting can trigger a trip.
Can I use this starter for high-inertia loads like large fans?
Yes, but you must select the correct tripping class (Class 10, 20, or 30). For heavy-duty starts, the Class 20 or 30 settings allow for longer ramp times without triggering a thermal overload trip, provided the thermal capacity of the thyristors is not exceeded.
What is the proper reset procedure after a thermal trip?
The unit supports automatic, manual, and remote reset configuration. After an overload event, a recovery time is required for the thermal motor model to cool before a restart is permitted. If the "OVERLOAD" LED is flashing, check your Current (Ie) and Class settings against the motor nameplate.
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.
