Siemens SIMATIC ET Input/output module, 4xM12, 2x24VDC/2A

Product Overview

The Siemens 6ES7146-5FF00-0BA0 is a fail-safe digital I/O module for the SIMATIC ET 200AL distributed I/O system. It provides 4 fail-safe digital inputs and 2 fail-safe digital outputs (24 V DC, up to 2 A) with integrated M12 field connections. Designed for safety-related automation tasks, it supports PROFIsafe communication and is suitable for use in decentralized, machine-mounted installations.

Key Features

• 4 fail-safe digital inputs (24 V DC)
• 2 fail-safe digital outputs (24 V DC, up to 2 A)
• Integrated 4 × M12 sockets for direct field wiring
• Supports PROFIsafe for safety communication
• Compact ET 200AL design for machine-mounted environments
• High vibration and shock resistance for industrial use
• Suitable for safety applications up to SIL 3 / PL e (depending on channel configuration)

Technical Specifications

• Article Number: 6ES7146-5FF00-0BA0
• Series: SIMATIC ET 200AL
• Inputs: 4 × fail-safe DI, 24 V DC
• Outputs: 2 × fail-safe DO, 24 V DC, 2 A each
• Connection Type: 4 × M12 sockets
• Safety Performance: Up to SIL 3 / PL e (dual-channel), SIL 2 / PL d (single-channel)
• Interface: ET-Connection for ET 200AL system integration
• Typical Applications: Safety inputs (e-stops, guard doors) and safety outputs (actuators, valves)
• Weight: approx. 220 g

Compliance & Certifications

• Designed according to IEC 61508 and ISO 13849 safety standards
• Meets Siemens quality standards for distributed safety I/O systems
• Suitable for machine-mounted use with high mechanical robustness

Applications

Ideal for decentralized safety applications such as emergency-stop processing, door monitoring, safe actuator control, safety zone management and machine-level safety tasks. Its compact, rugged design makes it suitable for conveyor systems, production machinery, packaging equipment and modular automation environments.