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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RT2027-1BB44 |
| Alternative Part Number | 3RT20271BB44 |
| Manufacturer | Siemens |
| Product Type | Power Contactor |
| Contactor Size | S0 |
| Rated Control Supply Voltage | DC 24V |
| Operational Voltage | Up to 400V |
| Utilisation Category | AC-3 |
| Rated Operational Current | 15 kW at 400V |
| Number of Poles | 3-Pole |
| Auxiliary Contacts | 2 Normally Open (NO) + 2 Normally Closed (NC) |
| Terminal Type | Screw Terminal |
| Protection Class | IP20 |
| Ambient Operating Temperature | -25 … +60 °C |
| Insulation Voltage | Rated at 690V |
| Shock Resistance | Rectangular impulse: 10g / 5 ms, 7.5g / 10 ms; Sine pulse: 15g / 5 ms, 10g / 10 ms |
| Impulse Voltage Resistance | Rated value 6 kV |
| Degree of Pollution | 3 |
| Installation Altitude | Up to 2000 meters above sea level |
| Storage Temperature Range | -55 … +80 °C |
| Mechanical Operating Cycles | Typical 10,000,000 |
| Product Approvals | General Product Approval, EMC, KTL, Declaration of Conformity, Test Certificates |
| Commodity Code | 853649 |
| Special Features | Removable auxiliary switch, finger-safe protection, suitable for a variety of switching tasks |
The Siemens 3RT2027-1BB44 is a robust power contactor designed to handle high switching frequencies with reliability and precision. Engineered for a wide range of applications, this contactor is an essential component for professionals seeking to control motors and loads effectively within industrial environments.
Crafted with a focus on durability, the 3RT2027-1BB44 boasts an impressive mechanical operating life, capable of up to 10 million switching cycles, ensuring long-term performance and minimal maintenance. Its compact size, classified as size S0, allows for efficient use of space in electrical cabinets, making it a versatile solution for various installation scenarios.
This contactor is equipped with 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts, providing flexibility in control circuit design. It operates with a DC control supply voltage of 24V and features screw terminals for secure and reliable connections.
With an insulation voltage rated at 690V and a surge voltage resistance of 6kV, the 3RT2027-1BB44 is built to withstand challenging electrical conditions, ensuring continued operation and safety. The contactor is also designed with finger-safe protection, offering an additional layer of safety during installation and maintenance.
The Siemens 3RT2027-1BB44 is a testament to Siemens' commitment to quality and reliability, making it a smart choice for those who require a dependable solution for controlling electric motors and loads in industrial applications.
Commonly Asked Questions
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Frequently Asked Questions
What type of contactor is this?
This is a power contactor designed for switching an electrical power circuit, similar to a relay but with higher current ratings.
Can this contactor be used for high-demand applications?
Yes, it is suitable for high-demand applications, with a mechanical operating life typically offering 10 million cycles.
What is the rated control supply voltage for this contactor?
The rated control supply voltage for the contactor is DC 24V.
Is this contactor suitable for three-phase applications?
Yes, it is suitable for three-phase applications and is commonly used to control motors and other heavy loads.
What is the size of this contactor?
The contactor is of size S0, which is a standard size for contactors in its class.
What are the environmental operating conditions for this contactor?
The contactor can operate in ambient temperatures ranging from -25°C to +60°C and at altitudes up to 2000 meters above sea level.
What is the insulation voltage rating of this contactor?
The insulation voltage rating of the contactor is 690V.
Does this contactor have auxiliary contacts?
Yes, it comes with 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts.
What is the protection class of this contactor?
The contactor has a protection class of IP20, making it finger-safe.
What are the installation requirements for this contactor?
The contactor should be installed in a location that meets the clearance and environmental conditions specified in its datasheet, ensuring proper ventilation and accessibility.
Part conditions explained
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New unboxed: The product does not come in its original packaging, but it has never been used and is in great working condition.
Refurbished: The product has been previously used, but it has undergone a thorough refurbishment process to restore it to a like-new or functional condition. Any defects or issues have been addressed, making it suitable for reuse.
Used: The product has been previously owned and has been used. It may show signs of wear and tear but is still functional and operational. The condition may vary depending on the specific item and its usage history.
