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3TH4355-0BM4

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Marvo Stock ID MV-7IZK
HS Code 85364900
SKU 3TH4355-0BM4
Warranty 12 months
Weight (kg) 0.30
Length (mm) 135.00
Width (mm) 55.00
Height (mm) 78.00

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Specification & Description

Specification Description
Part Number 3TH4355-0BM4
Alternative Part Number 3TH43550BM4
Manufacturer Siemens
Contactor Relay Type 55E EN 50 011
Number of Contacts 5NO (Normally Open) + 5NC (Normally Closed)
Terminal Type Screw Terminals
Operation Voltage DC 220V
Size of the Contactor 0
Ambient Operating Temperature -25°C to +55°C
Protection Class IP20
Reference Code K (according to DIN 40719, IEC 204-2, IEC 750, DIN EN 61346-2, DIN EN 81346-2)
Control Circuit Voltage Type DC
Control Supply Voltage (Rated) 220V DC
Operating Current at AC-15 10A at 230V, 6A at 400V
Identification Number 55 E
Mounting Type Screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022
Dimensions (Width x Height x Depth) 55mm x 78mm x 135mm
Certificates/Approvals General Product Approval, Functional Safety / Safety of Machinery, Type Examination
Protection Against Electrical Shock Finger-safe
B10 Value with High Demand Rate 1,000,000 (according to SN 31920, with 0.3 x Ie)
T1 Value for Proof Test Interval 20 years (according to IEC 61508)

The Siemens 3TH4355-0BM4 is a robust contactor relay designed to meet the demands of industrial control applications. This component is engineered to facilitate seamless integration into various control systems, offering a reliable solution for switching and managing electrical circuits. With a configuration of 5 normally open (NO) and 5 normally closed (NC) contacts, it provides versatile connection possibilities to suit a wide range of circuit designs.

Constructed with screw terminals for secure and durable connections, the 3TH4355-0BM4 operates on a DC control supply voltage, with a rated value of 220V. It is suitable for use within a broad ambient temperature range of -25 to +55 degrees Celsius, ensuring consistent performance in diverse working environments.

The device boasts a compact form factor, with dimensions that allow for easy installation onto a 35 mm standard mounting rail according to DIN EN 50022. Its finger-safe design enhances protection against electrical shock, making it a safe choice for various applications.

With a high B10 value indicating a long service life, the Siemens 3TH4355-0BM4 is a dependable choice for those seeking a contactor relay that combines functionality with longevity. Whether used in control panels, automation systems, or other industrial applications, this part is a testament to Siemens' commitment to quality and reliability in electrical components.

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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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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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 relay is this?

This is a contactor relay designed for DC operation with a DC solenoid system, featuring 5NO (normally open) and 5NC (normally closed) contacts.

What are the operating temperature limits for this relay?

The relay can operate within an ambient temperature range of -25 to +55 degrees Celsius.

What is the protection class of the relay?

The protection class for the front of the relay is IP20.

What is the rated control supply voltage for this relay?

The rated control supply voltage for the DC operation of this relay is 220V.

Can this relay be used in AC control circuits?

No, this relay is specifically designed for DC control circuits.

What is the operating current for the auxiliary circuit at different voltages?

At 230V, the operating current is rated at 10A, and at 400V, it is rated at 6A for the AC-15 auxiliary circuit.

How can this relay be mounted?

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

What are the dimensions of this relay?

The dimensions of the relay are 55 mm in width, 78 mm in height, and 135 mm in depth.

Does this relay have any certifications or approvals?

Yes, it has general product approval and may include other specific test certificates and declarations of conformity.

What is the B10 value for this relay?

The B10 value, which indicates the number of operating cycles until 10% of components may fail, is 1,000,000 with a high demand rate according to SN 31920, with the note that this is with 0.3 times the rated operating current (Ie).

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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.

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