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Siemens

3RF3405-1BB04

£123.74 (ex. VAT)

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Marvo Stock ID MV-7C10
HS Code 853649
SKU 3RF3405-1BB04
Condition New sealed
Warranty 12 months
Weight (kg) 0.20
Length (mm) 100.80
Width (mm) 45.00
Height (mm) 95.00
EAN 4011209863286

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Specification & Description

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Specification & Description

Specification Description
Part Number 3RF3405-1BB04
Manufacturer Siemens
Product Type Solid State Contactor
Poles 3 Pole
Configuration 3P-2NO
Operating Voltage 48 to 480 V AC
Current Rating 5.2 A
Power Rating 2.2 kW
Control Supply Voltage 24 V DC
Control Type Two-phase controlled
Switching Instantaneous
Terminal Type Screw terminal
Insulation Voltage Rated at 600 V
Protection Class IP20
Shock Resistance 15g / 11 ms according to IEC 60068-2-27
Vibration Resistance 2g according to IEC 60068-2-6
Ambient Operating Temperature -25 to +60 °C
Storage Temperature -55 to +80 °C
Electromagnetic Compatibility Conducted and radiated interference within industrial environment standards
Surge Voltage Resistance Rated at 6 kV for main circuit
Mounting Type Screw and snap-on mounting onto 35 mm standard mounting rail
Mounting Position Vertical
Dimensions (H x W x D) 95 mm x 45 mm x 100.8 mm
Required Spacing Upwards: 70 mm, Downwards: 50 mm for side-by-side mounting
Conductor Cross-section Main contacts: Solid (2x 1.5...2.5 mm², 2x 2.5...6 mm²), Stranded (1x 10 mm²)
Tightening Torque Main contacts: 2...2.5 N·m, Auxiliary and control contacts: 0.5...0.6 N·m
Certifications CE, UL, CSA, CCC, C-Tick (RCM)

The Siemens 3RF3405-1BB04 is a robust solid state contactor designed for seamless integration into various industrial applications. This three-pole device features two normally open (NO) contacts and is engineered to handle operating voltages ranging from 48 to 480 V at both 50 and 60 Hz, making it versatile for global use. With an operational current of 5.2 A at AC-3 at 400 V and a rated operating power of 2.2 kW, it is suitable for managing moderate power loads in a compact form factor.

The contactor is two-phase controlled and offers instantaneous switching, ensuring minimal delay in operations. It is designed for vertical mounting and can be easily installed onto a standard 35 mm mounting rail, with provisions for side-by-side mounting to optimise space within control cabinets. The unit's dimensions are 95 mm in height, 45 mm in width, and 100.8 mm in depth, requiring minimal space while providing maximum functionality.

For the control circuit, the contactor utilises a DC control supply voltage with a rated value of 24 V. It has a symmetrical line frequency tolerance of 5 Hz and an operating range factor for the control supply voltage rated value at DC between 0.63 and 1.25. The control current at the DC rated value is 15 mA, ensuring reliable operation.

The contactor is equipped with screw-type terminals for both the main current circuit and auxiliary and control circuit, accommodating a range of conductor cross-sections for flexible installation options. The device is designed with a focus on durability and reliability, featuring a surge current resistance rated value of 200 A and an I2t value maximum of 200 A²·s.

This solid state contactor is an excellent choice for those seeking a dependable solution for controlling power circuits in industrial environments, offering both performance and ease of use.

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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Creating an account is incredibly simple and takes a matter of seconds. You can create a Marvo account at any time by clicking here and following the simple steps on screen. By creating a Marvo account you can store your contact details, delivery addresses, billing addresses and more, meaning that you can enjoy game-changing convenience faster than ever before.

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Frequently Asked Questions

What type of switching does this solid state contactor use?

The Siemens solid state contactor utilises instantaneous switching, providing quick response times for controlling power to your equipment.

Can this contactor be mounted onto a standard mounting rail?

Yes, it is designed for screw and snap-on mounting onto a 35 mm standard mounting rail, allowing for easy installation in your control cabinet.

What is the rated insulation voltage for this contactor?

The rated insulation voltage for this contactor is 600 V, ensuring it can handle the electrical demands of industrial environments.

What is the operating voltage range for this contactor?

The operating voltage range for this contactor is 48 to 480 V at both 50 Hz and 60 Hz, making it versatile for various applications.

What are the ambient temperature limits for operating this contactor?

The contactor can operate within an ambient temperature range of -25 to +60 °C, and can be stored in temperatures ranging from -55 to +80 °C.

What is the control supply voltage required for this contactor?

The control supply voltage required is 24 V DC, with an initial value for signal detection at 15 V and a full-scale value for signal recognition at 5 V.

What are the dimensions of this contactor?

The dimensions are 95 mm in height, 45 mm in width, and 100.8 mm in depth, compact enough for efficient use of space in electrical setups.

Is there any derating in temperature to consider for this contactor?

Yes, there is a derating temperature of 40 °C to consider when operating this contactor to ensure optimal performance.

What type of terminals does this contactor have for electrical connections?

It features screw-type terminals for both the main current circuit and the auxiliary and control current circuit, facilitating secure connections.

How does this contactor handle electromagnetic compatibility?

The contactor is designed to handle various types of electromagnetic interference, including bursts, surges, and high-frequency radiation, adhering to industrial environment standards.

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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.