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6ES7321-1CH20-0AA0

£320.07 (ex. VAT)

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6ES7321-1CH20-0AA0
6ES7321-1CH20-0AA0
6ES7321-1CH20-0AA0

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Marvo Stock ID MV-120I
HS Code 85389091
SKU 6ES7321-1CH20-0AA0
Condition New unboxed
Category PLC Systems
Warranty 12 months
Weight (kg) 1.00
Length (mm) 320.00
Width (mm) 250.00
Height (mm) 250.00
EAN 4025515069928

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Specification & Description

Specification Description
Part Number 6ES7321-1CH20-0AA0
Manufacturer Siemens
Part Category PLC Systems
Part Family Simatic S7
Series S7-300
Type Digital Input Module
Number of Digital Inputs 16
Input Voltage Range 48-125 V DC
Input Current (Backplane) 40 mA
Power Loss 4.3 W
Input Delay 0.1 to 3.5 ms
Isolation Optically isolated
Connection Method 20-pin front connector
Dimensions (W x H x D) 40 x 125 x 120 mm
Weight 200 g
Input Characteristic Curve IEC 61131, Type 1
Simultaneously Controllable Inputs Up to 8 (horizontal installation)
Cable Length (Shielded) Max. 1000 m
Cable Length (Unshielded) Max. 600 m
Connectable Encoders 2-wire sensor
Permissible Quiescent Current Max. 1 mA
Status Indicator Green LED for digital input status
Environmental Conditions Suitable for use in harsh environments, resistant to biologically and chemically active substances, and mechanically active substances.
Certifications CE, UL, RCM, KC, EAC, EN 50155
Operating Temperature Range -25 °C to 70 °C
Storage Temperature Range -40 °C to 70 °C
Installation Altitude Up to 2000 m above sea level
Relative Humidity Up to 100% with condensation

The Siemens SIMATIC S7-300 Series Digital Input Module, part number 6ES7321-1CH20-0AA0, is a robust and reliable component designed for industrial automation applications. This digital input module features 16 optically isolated digital inputs, capable of handling a wide input voltage range from 48 to 125 V DC. It is engineered to meet the demanding requirements of modern automation systems, ensuring precise and efficient data acquisition.

With a compact design measuring 40 mm in width, 125 mm in height, and 120 mm in depth, this module is ideal for space-constrained environments. It supports a maximum input current of 40 mA from the backplane bus and has a typical power loss of 4.3 W, making it an energy-efficient choice for your automation needs.

The 6ES7321-1CH20-0AA0 module adheres to the IEC 61131 standard, ensuring compatibility and reliability in various industrial settings. It features a 20-pin front connector for easy installation and maintenance. The module is designed to operate within a temperature range of -25°C to 70°C, making it suitable for a wide range of environmental conditions.

This digital input module also includes status indicators for each digital input, providing clear and immediate feedback on the operational status. The optocoupler-based galvanic isolation between the channels and the backplane bus enhances the module's durability and safety.

Ideal for use in manufacturing, process control, and other industrial applications, the Siemens SIMATIC S7-300 Series Digital Input Module 6ES7321-1CH20-0AA0 offers a reliable and efficient solution for your automation requirements.

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 type of module is this?

This is a digital input module from the Siemens SIMATIC S7-300 series.

How many digital inputs does this module have?

The module has 16 digital inputs.

What is the input voltage range for this module?

The input voltage range is 48 to 125 V DC.

Is the module optically isolated?

Yes, the module is optically isolated.

What is the maximum input current for this module?

The maximum input current is 3.5 mA for signal '1'.

What are the dimensions of this module?

The dimensions are 40 mm in width, 125 mm in height, and 120 mm in depth.

What is the weight of this module?

The module weighs approximately 200 grams.

What type of connector is required for this module?

A 20-pin front connector is required.

What is the power loss of this module?

The typical power loss is 4.3 W.

What is the maximum cable length for shielded and unshielded cables?

The maximum cable length is 1000 meters for shielded cables and 600 meters for unshielded cables.

Does this module have diagnostic functions?

No, this module does not have diagnostic functions.

What is the isolation test voltage for this module?

The isolation is tested with 1500 V DC.

Can this module be used with 2-wire sensors?

Yes, it is compatible with 2-wire sensors.

What is the permissible quiescent current for 2-wire sensors?

The permissible quiescent current is 1 mA.

What is the input delay range for this module?

The input delay ranges from 0.1 ms to 3.5 ms for '0' to '1' transitions.

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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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