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Siemens

3TH4373-0BB4

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Marvo Stock ID MV-781X
HS Code 85364900
SKU 3TH4373-0BB4
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 3TH4373-0BB4
Alternative Part Number 3TH43730BB4
Manufacturer Siemens
Part Type Contactor Relay
Contact Configuration 7NO;3NC
Current Rating 10 A
Control Voltage 24 V dc
Size S0
Operation DC Operation
Protection Class IP20
Ambient Operating Temperature -25 … +55°C
Commodity Code 85364190
Country of Origin Not specified
Additional Features Screw Terminals, DC Solenoid System

The Siemens 3TH4373-0BB4 is a robust and reliable contactor relay, designed to offer superior performance in a variety of industrial applications. This compact device features 7 Normally Open (NO) and 3 Normally Closed (NC) contacts, making it highly versatile for different circuit configurations. With a control supply voltage rated at 24V DC, it ensures efficient operation in control circuits.

The 3TH4373-0BB4 is designed for DC operation and comes with screw terminals for easy installation. It has an operating current of 10A at 230V and 6A at 400V in AC-15, making it suitable for a wide range of load types. The device is also designed to withstand ambient temperatures ranging from -25 to +55 degrees Celsius, ensuring reliable performance in diverse operating conditions.

This Siemens contactor relay is housed in a compact size 0 enclosure with an IP20 protection class on the front, offering adequate protection against touch by fingers and objects not greater than 12mm. The device also supports both screw and snap-on mounting onto a 35mm standard mounting rail according to DIN EN 50022, offering flexibility in installation.

Whether you're managing motor control, automation systems, or complex industrial machinery, the Siemens 3TH4373-0BB4 contactor relay is a reliable choice that delivers consistent, high-quality performance.

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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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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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 is the function of this Siemens Contactor Relay?

The Siemens Contactor Relay is a crucial component in many electrical systems. It is designed to switch high electrical currents, acting as a bridge between a low-power signal and a high-power circuit. This particular model features 7 Normally Open (NO) and 3 Normally Closed (NC) contacts.

What are the technical specifications of this Contactor Relay?

This Contactor Relay operates with a control supply voltage of 24V DC. It has an operating current of 10A at AC-15 at 230V and 6A at 400V. The ambient operating temperature ranges from -25 to +55 degrees Celsius. It also has an IP20 protection class on the front.

What is the size of this Contactor Relay?

This Contactor Relay is of size 0, according to the product datasheet.

What is the Commodity Code of this Contactor Relay?

The Commodity Code for this Contactor Relay is 85364190.

What is the ambient temperature range for operating this Contactor Relay?

The ambient temperature range for operating this Contactor Relay is -25 to +55 degrees Celsius.

What is the protection class of this Contactor Relay?

The protection class of this Contactor Relay on the front is IP20.

What is the control supply voltage for this Contactor Relay?

The control supply voltage for this Contactor Relay is 24V DC.

What is the operating current for this Contactor Relay?

The operating current for this Contactor Relay is 10A at AC-15 at 230V and 6A at 400V.

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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.

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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.