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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RA2110-1BA15-1BB4 |
| Alternative Part Number | 3RA21101BA151BB4 |
| Manufacturer | Siemens |
| Series | 3RA2110 |
| Type | Dol Starter |
| Rated Operational Current | 1.9 A |
| Rated Operational Voltage | 690 V |
| Control Supply Voltage | 24 V DC |
| Holding Power of Magnet Coil | 4 W |
| Number of Poles | 3 |
| Switching Contact Design | Electromechanical |
| Overload Release | Thermal (bimetallic) |
| Trip Class | CLASS 10 |
| Mechanical Service Life | 30 million switching cycles |
| Ambient Temperature Range | -20...+60 °C |
| Relative Humidity During Operation | 10...95 % |
| Operating Frequency Rated Value | 50...60 Hz |
| Operating Power at AC-3, 400 V | 750 W |
| Full-load Current (FLA) at 480 V | 2 A |
| Mechanical Performance for AC Motor | 0.75 hp at 460/480 V |
| Type of Protection | Ex II (2) GD according to ATEX directive 2014/34/EU |
| Certificate of Suitability | DMT 02 ATEX F 001 |
| Auxiliary Switch | Yes |
| Commodity Code | 85364900 |
The Siemens 3RA2110 Series Dol Starter is a robust and reliable motor management solution designed to facilitate fuseless direct starting of motors. This particular model, the 3RA2110-1BA15-1BB4, is engineered to handle operating voltages up to 690V and is rated for an operational current of 1.9A at 400V in AC-3 usage categories. It is suitable for a wide range of industrial applications where precise motor control and protection are paramount.
Crafted for durability, the device boasts an impressive mechanical service life of approximately 30 million switching cycles, ensuring longevity and consistent performance in demanding environments. The starter is equipped with a thermal (bimetallic) overload release with an adjustable current response value ranging from 1.4 to 2A, providing effective protection against motor overload conditions.
The control circuit operates on a DC voltage with a rated value of 24V, and the holding power of the magnet coil is a modest 4W, contributing to the unit's energy efficiency. Additionally, the starter features a Class 10 trip class, which denotes a quick response to overload conditions, thereby safeguarding the motor from potential damage.
For ease of installation, the 3RA2110-1BA15-1BB4 is designed for vertical mounting and can be easily attached to a 35mm standard mounting rail through screw and snap-on mounting. The compact dimensions, with a height of 167mm, width of 45mm, and depth of 97mm, make it an ideal choice for integration into control panels where space is at a premium.
The unit's design also includes provisions for an auxiliary switch, allowing for expansion and integration with additional control circuitry. The screw-type terminals provide a secure and reliable electrical connection for the main current circuit, accommodating a range of conductor cross-sections.
Overall, the Siemens 3RA2110-1BA15-1BB4 Dol Starter is a high-quality component that offers efficient and secure motor management for a variety of industrial applications. Its robust construction, combined with advanced protective features, ensures optimal performance and motor safety.
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Frequently Asked Questions
What is the purpose of this Siemens Dol Starter?
The Siemens Dol Starter is designed for the direct online starting of motors, providing a method to safely engage a motor to the full voltage of its power supply.
Can this device be used in hazardous locations?
Yes, the device has general product approval for use in hazardous locations, complying with relevant safety standards.
What are the tripping characteristics of this load feeder?
The load feeder features thermal (bimetallic) overload release with a trip class of CLASS 10, ensuring reliable protection against motor overload conditions.
What is the rated operating voltage of this device?
The rated operating voltage of the device is 690 V, suitable for a wide range of industrial applications.
What type of control voltage is required for this device?
This device requires a DC control supply voltage, with a rated value of 24 V.
What is the mechanical service life of the contactor?
The contactor within the device has a typical mechanical service life of 30 million switching cycles, indicating its durability and longevity.
How can this device be mounted?
The device can be mounted vertically and is designed for screw and snap-on mounting onto a 35 mm standard mounting rail.
What are the dimensions of this Siemens Dol Starter?
The dimensions of the device are 167 mm in height, 45 mm in width, and 97 mm in depth.
Is there an auxiliary switch available for this device?
Yes, the device has a product extension for an auxiliary switch, allowing for additional control and monitoring functions.
What is the operating current at AC-3 for this device?
At AC-3, the operating current at 400 V is rated at 1.9 A.
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