Siemens 6ES7226-6DA32-0XB0 SIMATIC S7-1200 SM 1226 F-DQ 4x24VDC 2A PROFIsafe Fail-safe PLC I/O Module

The Siemens SIMATIC S7-1200 SM 1226 F-DQ (6ES7226-6DA32-0XB0) is a fail-safe digital output module providing 4x 24 V DC outputs rated 2 A each over PROFIsafe, achieving Performance Level e per ISO 13849-1 and SIL 3 per IEC 61508. It occupies 70 mm of rail width, draws 125 mA max from the S7-1200 backplane bus, and is IP20 rated for panel mounting.

Technical Specifications

Certifications & Standards

• CE
• cULus
• FM

Selection Notes

The safety rating, PL e / SIL 3, and PROFIsafe interface set this module apart from the standard non-fail-safe SM 1226 digital output cards — select it when the machine's safety function, such as safe torque removal wiring or guard interlocks, needs a certified safety output rather than a general-purpose relay or contactor drive. Each of the 4 outputs switches up to 2 A at 24 V DC with residual leakage current below 0.5 mA on both P- and M-switch, relevant when sizing downstream loads that must reliably register a safe OFF state.

Applications

Used in SIMATIC S7-1200-based safety circuits — E-stop chains, guard door interlocks, and light-curtain output stages — where the PLC itself must drive safety-rated 24 V DC outputs instead of routing through a separate safety relay.