Siemens 6ES7921 Series Front Connector for Use with Analog I/O Modules
- RS Stock No.:
- 282-3309
- Mfr. Part No.:
- 6ES7921-5CK20-0AA0
- Brand:
- Siemens
Subtotal (1 unit)*
£59.59
(exc. VAT)
£71.51
(inc. VAT)
FREE delivery for orders over £60.00
Stocked by manufacturer
- Ready to ship from 10 June 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 + | £59.59 |
*price indicative
- RS Stock No.:
- 282-3309
- Mfr. Part No.:
- 6ES7921-5CK20-0AA0
- Brand:
- Siemens
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | Siemens | |
| Product Type | Front Connector | |
| Accessory Type | Connector Module | |
| Series | 6ES7921 | |
| For Use With | Analog I/O Modules | |
| Hazardous Area Certification | No | |
| Standards/Approvals | No | |
| Supply Voltage | 24V | |
| Select all | ||
|---|---|---|
Brand Siemens | ||
Product Type Front Connector | ||
Accessory Type Connector Module | ||
Series 6ES7921 | ||
For Use With Analog I/O Modules | ||
Hazardous Area Certification No | ||
Standards/Approvals No | ||
Supply Voltage 24V | ||
- COO (Country of Origin):
- RO
Siemens 6ES7921 Series Front Connector, For Use With Analog I/O Modules - 6ES7921-5CK20-0AA0
This front connector provides a dedicated Interface for connecting analogue I/O modules within industrial control systems. It functions as an accessory connector to facilitate secure electrical and mechanical coupling of analogue signal modules to a host system. The product is intended for use within modular automation assemblies where a removable connection point is required.
Features and Benefits:
• Connector module designed for analogue I/O easing module replacement
• Compatible with 6ES7921 series enabling direct module integration
• Acts as a spare-part connector reducing system downtime
• Accessory form factor simplifies front-end connection tasks
• Compatible with 6ES7921 series enabling direct module integration
• Acts as a spare-part connector reducing system downtime
• Accessory form factor simplifies front-end connection tasks
Applications
• Suitable for retrofitting SIMATIC analogue modules in control racks
• Used with PLC analogue I/O modules for signal interfacing
• Ideal for maintenance spares in industrial automation inventories
• Can be used for replacement of worn front connectors on analogue cards
• Used with PLC analogue I/O modules for signal interfacing
• Ideal for maintenance spares in industrial automation inventories
• Can be used for replacement of worn front connectors on analogue cards
Which manufacturer produced this accessory connector?
It is produced by Siemens, intended for their modular automation components.
What module family is this designed to work with?
It is intended for use with the 6ES7921 family of analogue I/O modules.
Is this item intended as a serviceable spare?
Yes, it is supplied as a connector spare part to enable quick field replacement.
What is the functional role of this item in a control system?
It provides the front-end electrical Interface that links analogue I/O modules to the system backplane.
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