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6ES7421-7DH00-0AB0

£67.39 (ex. VAT)

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6ES7421-7DH00-0AB0
6ES7421-7DH00-0AB0
6ES7421-7DH00-0AB0

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Marvo Stock ID MV-12AJ
HS Code 85389091
SKU 6ES7421-7DH00-0AB0
Condition Refurbished
Category PLC Systems
Warranty 12 months
Weight (kg) 2.00
Length (mm) 390.00
Width (mm) 300.00
Height (mm) 250.00
EAN 4025515128922

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Specification & Description

Specification Description
Part Number 6ES7421-7DH00-0AB0
Alternative Part Number 6ES74217DH000AB0
Manufacturer Siemens
Category PLC Systems
Family Simatic S7
Description The Siemens SIMATIC S7-400 Series Digital Input Module is a high-performance system with a compact design. It operates at a backplane current of 150 mA and a voltage of 24 V dc. The module measures 25 x 290 x 210 mm, making it suitable for various industrial applications.
Number of Digital Inputs 16
Input Voltage AC/DC, Rated value (UC) 24 V; 24 V UC to 60 V UC (47 ... 63 Hz)
Input Current For signal "1", typ. 4 mA; 4 to 10 mA
Input Delay Parameterizable, Rated value 0.5 ms; 0.5 / 3 / 10 / 20 ms
Cable Length Shielded, max. 1 000 m; Unshielded, max. 600 m
Encoder Connection Connectable encoders, 2-wire sensor Yes
Diagnostics Function Yes; Parameterizable
Alarms Diagnostic alarm Yes; Parameterizable, Hardware interrupt Yes; Parameterizable
Dimensions Width 25 mm, Height 290 mm, Depth 210 mm
Weight Approx. 600 g
Commodity Code 85389091

The Siemens 6ES7421-7DH00-0AB0 is a high-performance digital input module from the renowned SIMATIC S7-400 series. This module is designed to provide reliable and efficient operation in a wide range of industrial automation applications. It features 16 digital inputs, allowing for comprehensive control and monitoring of various processes. The module operates with a rated value of 24V DC to 60V DC, making it versatile for different power requirements.

One of the key features of this module is its potential separation between the channels and the backplane bus, ensuring safe and secure operation. It also offers diagnostic functions that are parameterizable, providing valuable insights into the system's performance. The module is compact with dimensions of 25 x 290 x 210 mm, making it easy to integrate into existing systems.

The Siemens 6ES7421-7DH00-0AB0 digital input module is a robust and reliable solution for your automation needs, offering the quality and performance that you expect from Siemens.

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 is the family of this part?

This part is from the Simatic S7 family.

What is the description of this part?

This is a Siemens SIMATIC S7-400 Series Digital Input Module, with 150 mA (Backplane), 24 V dc, and dimensions of 25 x 290 x 210 mm.

What is the short description of this part?

The short description of this part is SIMATIC S7-400, digital input SM 421.

What is the Commodity Code of this part?

The Commodity Code of this part is 85389091.

What are the dimensions of this part?

The dimensions of this part are 25 mm in width, 290 mm in height, and 210 mm in depth.

What is the weight of this part?

The approximate weight of this part is 600 g.

What is the input current from the backplane bus 5 V DC, max. of this part?

The maximum input current from the backplane bus 5 V DC of this part is 150 mA.

What is the power loss of this part?

The typical power loss of this part is 8 W; 3.5 W (24 V DC); 6.5 W (48 V DC); 8.0 W (60 V DC).

How many digital inputs does this part have?

This part has 16 digital inputs.

What is the type of input voltage of this part?

The type of input voltage of this part is AC/DC.

What is the rated value (UC) of this part?

The rated value (UC) of this part is 24 V; 24 V UC to 60 V UC (47 ... 63 Hz).

What is the input delay (for rated value of input voltage) for standard inputs of this part?

The input delay (for rated value of input voltage) for standard inputs of this part is 0.5 ms; 0.5 / 3 / 10 / 20 ms.

What is the maximum cable length, shielded, of this part?

The maximum cable length, shielded, of this part is 1000 m.

What is the maximum cable length, unshielded, of this part?

The maximum cable length, unshielded, of this part is 600 m.

Can this part connect to a 2-wire sensor?

Yes, this part can connect to a 2-wire sensor.

Does this part have a diagnostics function?

Yes, this part has a diagnostics function that is parameterizable.

Does this part have a diagnostic alarm?

Yes, this part has a diagnostic alarm that is parameterizable.

Does this part have a hardware interrupt?

Yes, this part has a hardware interrupt that is parameterizable.

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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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