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Siemens 3RT1045-1AL20

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Marvo Stock ID MV-263Q

HS Code 85364900

SKU 3RT1045-1AL20

Warranty 12 months

Weight (kg) 2.00

Length (mm) 320.00

Width (mm) 250.00

Height (mm) 250.00

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More about this product

Specification & Description

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Commonly Asked Questions

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Customer Reviews

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Specification & Description

Specification	Description
Part Number	3RT1045-1AL20
Alternative Part Number	3RT10451AL20
Manufacturer	Siemens
Product Type	Power Contactor
Contact Configuration	3NO (3 Normally Open)
Rated Operational Current	AC-3: 80 A, AC-1: 120 A
Rated Operational Voltage	400 V
Control Supply Voltage	230 V ac
Frequency	50/60 Hz
Power Rating	AC-3: 37 kW / 400 V
Size	S3
Connection Type	Screw Connection
Insulation Voltage	Rated at 1,000 V
Degree of Pollution	3
Installation Altitude	Maximum 2,000 m above sea level
Ambient Operating Temperature	-25 … +60 °C
Mechanical Operating Cycles	Typical 10,000,000
Protection Class	IP20 on the front
Commodity Code	853649

The Siemens 3RT1045-1AL20 is a robust power contactor designed to handle high current applications with ease. This contactor is part of the SIRIUS product family, renowned for its reliability and efficiency in industrial environments. With a rating of AC-3 80 A and the capability to manage motors up to 37 kW at 400 V, it is an ideal choice for a wide range of applications.

Crafted for durability, the 3RT1045-1AL20 features three normally open (NO) contacts, ensuring a secure and stable connection for your main contacts. The contactor operates with a control supply voltage of 230 V AC at 50/60 Hz, making it versatile for use in various electrical setups.

The unit is engineered with a screw connection, allowing for straightforward installation and maintenance. It is designed to withstand mechanical operating cycles up to 10 million, highlighting its longevity and ability to perform in demanding operational conditions.

With an insulation voltage rated at 1,000 V and a surge voltage resistance of 6 kV, the 3RT1045-1AL20 ensures safe operation and protection against voltage spikes. The contactor's compact size, classified as size S3, and an IP20 protection class on the front, make it suitable for integration into a variety of control cabinets and systems.

The Siemens 3RT1045-1AL20 is a testament to high-quality engineering, providing a reliable solution for controlling high-power loads in industrial applications. Its robust construction and proven performance make it a valuable component for those seeking a dependable power management solution.

Commonly Asked Questions

Is my order covered by a warranty?

Marvo provides a full 12-month warranty on all products, whatever the condition. For your peace of mind, all parts are ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. If you are unhappy with the part(s) you received and would like to request a return, you can do so by completing our quick and easy online form. Once we have received your Returns Request, a member of the team will be in touch to discuss this further with you. You can read more about our warranty policy here.

What payment methods do you accept?

We accept card payments from all major credit, debit and Mastercard providers including Visa, American Express, Western Union, Paypal and bank transfers. Before you complete an order you will be prompted to input your payment details, at which point you can enter the relevant card information you wish to use for your transaction. If you are experiencing issues with your payment method then you can contact our team via email here. From there, you will be directed to the most relevant resource or person to help you complete your payment, get your order processed and ensure that your parts are on the way to your delivery address.

Is Marvo a credible parts supplier?

Marvo is a highly credible supplier of industrial automation parts and components with dedicated hubs around the world offering industry-leading products and services. Marvo is committed to providing a quick, easy and reliable place to source your automation and control components. All purchases come as standard with a comprehensive 12-month return to base warranty meaning that, in just a few clicks, you can source critical parts more seamlessly than ever before. Click here to read an article on how Marvo is redefining convenience for automation and manufacturing professionals.

Have steps been taken to ensure quality control?

Marvo takes pride in product quality and has put several measures in place to assure high levels of quality standards. For your peace of mind, all parts have been ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. Redefine convenience and secure priority delivery on all parts along with a comprehensive 12-month warranty. This is the smart new way to buy automation and control components.

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Our service to you

Lightning-Fast Express Shipping: Receive your order in record time with our express shipping options, ensuring you minimize downtime and keep your projects on track.

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Rock-Solid Reliability at a Fraction of the Cost: Get pre-owned electronic parts that are fully tested for peak performance, saving you money without compromising on quality, backed by a comprehensive warranty.

Frequently Asked Questions

What is the rated operating current for this power contactor?

The rated operating current for the Siemens power contactor at AC-3 is 80 A at 400 V.

Can this contactor be used for motor control applications?

Yes, this contactor is suitable for motor control applications, with a rated service power of 37 kW at AC-3 for 400 V.

What is the control supply voltage required for this contactor?

The control supply voltage required for this contactor is AC 230V at both 50 Hz and 60 Hz.

What are the main circuit connection options for this contactor?

This contactor features screw connection terminals for the main circuit connections.

What is the size classification of this contactor?

This contactor is classified as size S3 according to the manufacturer's product range.

What is the insulation voltage rating for this contactor?

The insulation voltage rating for this contactor is 1,000 V.

What is the ambient temperature range for operating this contactor?

The ambient temperature range for operating this contactor is between -25°C and +60°C.

What is the degree of protection provided by the front of this contactor?

The front of this contactor provides a protection class of IP20.

How many poles does this contactor have for the main current circuit?

This contactor has 3 poles for the main current circuit.

What is the mechanical operating life expectancy of this contactor?

The mechanical operating life expectancy of this contactor is typically 10 million operating cycles.

Part conditions explained

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New unsealed: The product is in its original packaging, but the packaging has been opened or unsealed. It has never been used and should be in near pristine condition.

New sealed: The product is sealed in its original packaging. It has never been opened or used, ensuring that it's in an untouched state.

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.

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