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Siemens 3RT1035-1AL20

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£62.91 (ex. VAT)

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Marvo Stock ID MV-1OQ2
HS Code 85364900
SKU 3RT1035-1AL20
Condition Used
Warranty 12 months
Weight (kg) 1.00
Length (mm) 300.00
Width (mm) 190.00
Height (mm) 150.00

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Specification & Description

Specification Description
Part Number 3RT1035-1AL20
Alternative Part Number 3RT10351AL20
Manufacturer Siemens
Product Type Contactor
Poles 3 Poles
Rated Operational Current AC-3 40 A
Power Rating 18.5 kW / 400 V
Control Circuit Voltage 230 V AC
Frequency 50/60 Hz
Size S2
Connection Type Screw Connection
Degree of Pollution 3
Protection Class IP20 on the front
Installation Altitude Up to 2,000 meters above sea level
Ambient Operating Temperature -25 … +60 °C
Mechanical Operating Cycles Typically 10,000,000 for contactor, 5,000,000 with electronics-compatible auxiliary switch block
Insulation Voltage Rated at 690 V
Surge Voltage Resistance Rated at 6 kV

The Siemens 3RT1035-1AL20 is a robust and reliable power contactor designed to handle a variety of applications in industrial environments. This contactor is part of the SIRIUS product family, known for its high-quality performance and durability. With a rated operational current of AC-3 40 A and the capability to manage motors with power ratings up to 18.5 kW at 400 V, it is an excellent choice for controlling power circuits.

Crafted for convenience, the 3RT1035-1AL20 features a three-pole design and comes with screw connections, making installation and maintenance straightforward. The contactor operates with a control supply voltage of AC 230V at 50/60Hz, ensuring compatibility with standard power supplies in the United Kingdom.

The device is engineered to withstand challenging industrial conditions, boasting an insulation voltage rated at 690 V and a surge voltage resistance of 6 kV. It is also designed with a protection class of IP20 on the front, safeguarding the contactor's internal components from external factors.

With a mechanical operating life of approximately 10 million cycles, the Siemens 3RT1035-1AL20 is built to last, providing a dependable solution for your power management needs. Its compact size, classified as Size S2, allows for efficient use of space inside electrical cabinets.

Whether you're managing conveyor systems, compressors, or pumps, this contactor is an excellent choice for a wide range of applications where reliable power control is essential.

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.

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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.

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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.

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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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Frequently Asked Questions

What type of contactor is this?

This is a 3-pole power contactor designed for industrial applications, specifically for switching motors. It's part of the Siemens SIRIUS contactor range.

Can this contactor be used for both AC and DC applications?

The contactor is primarily designed for AC applications, with a control supply voltage of AC 230V at 50/60Hz. It has specific ratings for DC applications as well, detailed in its technical specifications.

What is the rated operating current of this contactor?

The rated operating current for this contactor at AC-3, 400 V is 40 A.

What is the power rating for this contactor in AC-3 utilisation category?

In the AC-3 utilisation category at 400 V, the contactor has a power rating of 18.5 kW.

What are the mounting options for this contactor?

The contactor can be mounted using screw and snap-on mounting onto a 35 mm standard mounting rail according to DIN EN 50022.

What is the mechanical service life of this contactor?

The mechanical service life of the contactor is typically 10 million operating cycles.

What is the ambient temperature range for operating this contactor?

The contactor can operate within an ambient temperature range of -25 to +60 degrees Celsius.

What is the protection class of the contactor?

The protection class on the front of the contactor is IP20.

How many auxiliary contacts does this contactor have?

This contactor does not have built-in auxiliary contacts; however, auxiliary contact blocks can be added as needed.

What is the installation altitude limit for this contactor?

The contactor can be installed at altitudes up to 2000 meters above sea level without derating.

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Part conditions explained


We want your buying experience to be as seamless as possible. So, here are all of the product descriptions you will see when browsing Marvo, explained a little further:

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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