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Siemens 6ES5951-7LB21

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Marvo Stock ID MV-116X
HS Code 85044082
SKU 6ES5951-7LB21
Condition Used
Category PLC Systems
Warranty 12 months
Weight (kg) 3.00
Length (mm) 480.00
Width (mm) 320.00
Height (mm) 320.00

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Specification & Description

Specification Description
Part Number 6ES5951-7LB21
Alternative Part Number 6ES59517LB21
Manufacturer Siemens
Part Category PLC Systems
Part Family Simatic S5
Weight 1.5 kg
Dimensions 200mm x 200mm x 80mm
Country of Origin Romania
Commodity Code 85044082
Introduction Date 1st October 2004
Discontinuation Date 1st October 2020
Part Description This is a Siemens Power Supply, specifically designed for the SIMATIC S5 series. It is used for S5-115U/H models and operates at 120 to 230 V AC. The output is 5 V DC, 3 A. Please note that this model does not come with a backup battery.

The Siemens 6ES5951-7LB21 is a robust power supply unit, specifically designed for the Simatic S5 PLC system. This unit is a crucial component of the S5-115U/H system, providing a reliable power source without the need for a backup battery. It operates efficiently within a voltage range of 120 to 230 V AC, delivering a steady output of 5 V DC at 3 A. Despite its compact size, with dimensions of 200mm x 200mm x 80mm and a weight of 1.5kg, this power supply unit is built to deliver consistent performance. Manufactured in Romania, it adheres to the highest standards of quality and reliability that Siemens is known for. Please note that this unit was introduced in 2004 and discontinued in 2020, but remains a reliable choice for maintaining your Simatic S5 PLC system.

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 is the category of this part?

This part belongs to the PLC Systems category.

What family does this part belong to?

This part is a member of the Simatic S5 family.

What is the weight of this part?

The weight of this part is 1.5 kg.

What are the dimensions of this part?

The dimensions of this part are 200mm in height, 200mm in width, and 80mm in depth.

Where is this part originally from?

This part is originally from Romania.

What is the commodity code of this part?

The commodity code of this part is 85044082.

When was this part introduced and discontinued?

This part was introduced on 1st October 2004 and was discontinued on 1st October 2020.

What is the short description of this part?

The short description of this part is: S5, Power supply 951 for S5-115U/H without backup battery 120/230 V AC; 5 V DC, 3 A.

What is the use of this part?

This part is a power supply unit used for S5-115U/H120 to 230 V ac.

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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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