Siemens 6ES5420-3BA11 SIMATIC S5 Telecom System Card / Module

Siemens 6ES5420-3BA11 SIMATIC S5 Telecom System Card / Module Image 1

Siemens 6ES5420-3BA11 digital input module for SIMATIC S5 PLC systems.

The Siemens 6ES5420-3BA11 is a digital input module designed for use with the SIMATIC S5 programmable logic controller (PLC) series. This module provides digital input channels for connecting field devices such as sensors, switches, and other binary signal sources to the S5 automation system.

The 6ES5420-3BA11 is intended for industrial automation applications where reliable digital signal acquisition is required. It integrates into the S5 system rack and communicates with the central processing unit to enable monitoring and control of connected equipment.

The SIMATIC S5 platform is a legacy automation system that has been superseded by the SIMATIC S7 series. However, many S5 installations remain in active service across manufacturing, process control, and infrastructure applications, creating ongoing demand for replacement modules and spare parts.

Available from Tech Star as new or refurbished stock. Submit a price enquiry for availability and lead time.

Worldwide supply. We export new and refurbished telecoms and networking equipment internationally. International buyers welcome, request a delivered quote in your currency. Supply subject to export checks.

From the same manufacturer

Compatible with the same platform

Frequently asked questions

Is the Siemens 6ES5420-3BA11 refurbished or new?
Tech-Star supplies both new and refurbished Siemens 6ES5420-3BA11. Refurbished items are tested and graded against manufacturer specifications; the condition is confirmed at quote.
What warranty is included with the Siemens 6ES5420-3BA11?
Refurbished Siemens 6ES5420-3BA11 comes with a 90-day parts and labour warranty as standard. Extended warranty options are available on request.
How do I get a price for the Siemens 6ES5420-3BA11?
Pricing reflects current stock and lead time, so we quote per enquiry. Submit the part number through the contact form for a quote, typically within one business hour.
Can the Siemens 6ES5420-3BA11 be returned?
Returns are accepted within 14 days of delivery in line with our return policy. A restocking fee may apply for opened items.
How quickly can the Siemens 6ES5420-3BA11 be delivered?
Lead time depends on current stock. UK-based items typically ship the next business day; sourced items vary. We confirm lead time at quote.

Key FeaturesDigital input module; S5 rack mounting; Industrial automation interface
ApplicationsIndustrial process control; Manufacturing automation; Legacy PLC system maintenance
CompatibilitySiemens SIMATIC S5-115U; Siemens SIMATIC S5-135U; Siemens SIMATIC S5-155U
SpecificationsDigital input type; 24V DC input voltage typical for series
PlatformSIMATIC S5
ManufacturerSiemens

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