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Siemens 6ES7138-4FB03-0AB0 Fail-Safe Digital Input Module for industrial automation

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Siemens 6ES7138-4FB03-0AB0

by Siemens

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OverviewThe Siemens 6ES7138-4FB03-0AB0 is a robust fail-safe digital input module from the SIMATIC ET 200S series. This component is essential for demanding safety-related automation tasks. It features four precision-engineered digital inputs (DI) operating at 24V DC, ensuring accurate acquisition of vital safety signals. This module adheres to the highest global safety standards, including SIL 3 (IEC 61508) and PL e (ISO 13849-1), making it a cornerstone for creating highly dependable and compliant industrial automation systems. It is an excellent solution for functions like emergency stop circuits, intricate safety interlocks, and comprehensive fail-safe process control across various industrial settings, guaranteeing maximum operational safety and regulatory adherence.Key Features 4 Fail-Safe Digital Inputs: Provides secure signal acquisition, crucial for critical safety where integrity is paramount. 24V DC Operation: Ensures stable, high-reliability input detection and seamless integration into standard industrial control systems. SIL 3 / PL e Certified: Meets stringent international safety standards (IEC 61508 and ISO 13849-1) for demanding safety integrity levels. ET 200S System Compatibility: Designed for effortless integration into existing SIMATIC ET 200S distributed I/O systems, simplifying network architecture. PROFIsafe Communication: Supports fail-safe communication over PROFIBUS or PROFINET for secure data exchange in safety-critical networks. Rugged Industrial Design: Built to endure harsh industrial environments, ensuring long-term performance and reliability under challenging conditions. Technical SpecificationsThis SIMATIC ET 200S fail-safe digital input module, part number 6ES7138-4FB03-0AB0, is meticulously engineered: Product Type: SIMATIC ET 200S Fail-Safe Digital Input Module Part Number: 6ES7138-4FB03-0AB0 Number of Inputs: 4 Digital Inputs (DI) Input Voltage: 24V DC Safety Standards: SIL 3 (conforms to IEC 61508) and PL e (conforms to ISO 13849-1) Communication Protocol: Integration via PROFIsafe over PROFIBUS or PROFINET network protocols Mounting Type: Designed for DIN Rail mounting within the ET 200S I/O System Compliance: Fully compliant with stringent industrial automation and safety regulations Applications Emergency Stop Monitoring: Crucial for swiftly and safely shutting down machinery in hazardous situations, protecting personnel and equipment. Safety Interlocks: Facilitates secure control of dangerous processes by preventing unsafe operating conditions or unauthorized access. Fail-Safe Industrial Automation Systems: Enhances system reliability in setups requiring redundant safety measures and continuous operational integrity. Process Control in High-Risk Environments: Essential for accurate and safe signal acquisition in industries such as chemical, automotive, and manufacturing. Machine Safety Circuits: Integrates into complex machine safety designs to achieve a high level of protection and compliance. Why Choose This Model?The 6ES7138-4FB03-0AB0 offers unparalleled advantages for your industrial automation needs: Uncompromised Safety: With SIL 3 and PL e certifications, it provides the highest level of safety integrity for critical applications. Seamless Integration: As a SIMATIC ET 200S module, it effortlessly integrates into your existing Siemens automation infrastructure, simplifying setup. Reliable Performance: Engineered by Siemens, this module guarantees consistent and dependable performance in demanding industrial environments. Future-Proof Connectivity: Compatibility with PROFIsafe over both PROFIBUS and PROFINET ensures versatile and secure communication within modern industrial networks. Optimized for Efficiency: Its precise design and high functionality contribute to optimized process control. Order NowSecure the safety and efficiency of your operations today with the Siemens 6ES7138-4FB03-0AB0 Fail-Safe Digital Input Module. Contact Palm Parts Solution for pricing and availability.FAQWhat are the key safety certifications for this module?The Siemens 6ES7138-4FB03-0AB0 is certified to SIL 3 (IEC 61508) and PL e (ISO 13849-1) standards, ensuring it meets the most stringent international safety requirements.Can this module be integrated into existing Siemens systems?Yes, it is specifically designed for effortless integration into existing SIMATIC ET 200S distributed I/O systems, simplifying network architecture and installation.What communication protocols does this module support for fail-safe operation?It supports PROFIsafe communication over both PROFIBUS and PROFINET networks, allowing for secure data exchange in safety-critical applications.What type of environments is this module suitable for?With its rugged industrial design, it is built to withstand harsh industrial environments, ensuring long-term performance and reliability in challenging conditions.What voltage does the digital input operate on?The module

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PRODUCT DETAILS

Siemens 6ES7138-4FB03-0AB0

Overview

This is a genuine Siemens component. PalmPartsSolution stocks it in new, refurbished, and surplus condition with tested warranty and same-day shipping on in-stock units.

Whether you are sourcing a like-for-like replacement for an existing installation, an emergency spare to keep a line running, or a qualified part for a new build, our team can confirm availability, revision, and lead time before you order.

Key Features

  • Genuine Siemens catalog part
  • Tested before shipment
  • Backed by PalmPartsSolution warranty
  • Cross-reference and revision assistance available
  • Compatible with the broader Siemens automation ecosystem

Compatibility

When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your Siemens equipment. Where applicable, confirm:

  • Input/output voltage and current rating
  • Communication protocol and network role
  • Mounting form factor and footprint
  • Operating temperature, humidity, and IP rating
  • Required certifications (UL, CE, ATEX, marine, etc.)

Not sure which revision you need? Send us the catalog number on the nameplate and we will confirm the correct match.

Replacement Information

Three ways to source this part through PalmPartsSolution:

  1. Exact replacement — same Siemens catalog number, new or refurbished, tested and warrantied
  2. Form-fit-function equivalent — alternate revision or build that drops in without code changes
  3. Engineered migration — current-generation Siemens platform with documented conversion notes

Contact our engineering team if you need help choosing between these tracks.

Technical Specifications

This SIMATIC ET 200S fail-safe digital input module, part number 6ES7138-4FB03-0AB0, is meticulously engineered:

  • Product Type: SIMATIC ET 200S Fail-Safe Digital Input Module
  • Part Number: 6ES7138-4FB03-0AB0
  • Number of Inputs: 4 Digital Inputs (DI)
  • Input Voltage: 24V DC
  • Safety Standards: SIL 3 (conforms to IEC 61508) and PL e (conforms to ISO 13849-1)
  • Communication Protocol: Integration via PROFIsafe over PROFIBUS or PROFINET network protocols
  • Mounting Type: Designed for DIN Rail mounting within the ET 200S I/O System
  • Compliance: Fully compliant with stringent industrial automation and safety regulations

Applications

  • Emergency Stop Monitoring: Crucial for swiftly and safely shutting down machinery in hazardous situations, protecting personnel and equipment.
  • Safety Interlocks: Facilitates secure control of dangerous processes by preventing unsafe operating conditions or unauthorized access.
  • Fail-Safe Industrial Automation Systems: Enhances system reliability in setups requiring redundant safety measures and continuous operational integrity.
  • Process Control in High-Risk Environments: Essential for accurate and safe signal acquisition in industries such as chemical, automotive, and manufacturing.
  • Machine Safety Circuits: Integrates into complex machine safety designs to achieve a high level of protection and compliance.

Why Choose the 6ES7138-4FB03-0AB0?

The 6ES7138-4FB03-0AB0 offers unparalleled advantages for your industrial automation needs:

  • Uncompromised Safety: With SIL 3 and PL e certifications, it provides the highest level of safety integrity for critical applications.
  • Seamless Integration: As a SIMATIC ET 200S module, it effortlessly integrates into your existing Siemens automation infrastructure, simplifying setup.
  • Reliable Performance: Engineered by Siemens, this module guarantees consistent and dependable performance in demanding industrial environments.
  • Future-Proof Connectivity: Compatibility with PROFIsafe over both PROFIBUS and PROFINET ensures versatile and secure communication within modern industrial networks.
  • Optimized for Efficiency: Its precise design and high functionality contribute to optimized process control.

Availability & Shipping

  • In stock: 6ES7138-4FB03-0AB0 ready for immediate dispatch from our Florida warehouse.
  • Free USA shipping: FedEx Priority (2–5 business days) and UPS Ground (3–5 business days). Expedited options available at checkout.
  • Worldwide delivery: FedEx International Priority (1–5 days), UPS International Priority (3–5 days), and USPS International (5–10 days) — rates calculated at checkout.
  • Bulk pricing: Volume discounts on request — contact our sales team for quantity quotes.
  • Buy with confidence: Every 6ES7138-4FB03-0AB0 ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Siemens

The Siemens 6ES7138-4FB03-0AB0 is certified to SIL 3 (IEC 61508) and PL e (ISO 13849-1) standards, ensuring it meets the most stringent international safety requirements.

Machine down? We ship parts the same day.

New, surplus, and refurbished Siemens inventory in stock. Request a quote or speak directly with an automation specialist for emergency sourcing.

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PALM Parts Solution operates as an independent industrial automation supplier and is not an authorized distributor or affiliate of any listed manufacturer or brand name. Manufacturer trademarks and product names are used solely for identification purposes. Original manufacturer warranties do not apply. All products sold by PALM Parts are backed by our own 1-year warranty.

Product Condition & Firmware

All products are sold as new unless stated otherwise. Original manufacturer packaging may show signs of handling, storage, or shelf wear. Date codes and series may vary from current factory production. PALM Parts does not guarantee the presence, version, or compatibility of any firmware on PLC or automation products.

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