Friend, this is the Siemens SM 1226 safety output module for the S7-1200 family – order code 6ES7226-6DA32-0XB0. It packs four fail-safe digital outputs, each rated 2 A at 24 V DC, with PROFIsafe communication for integrating into safety-rated machine controls.
Wiring and environment
Temperature range spans -40 to 70 °C, so it handles cold storage areas or hot cabinets without a derate. IP20 enclosure – fine inside a standard electrical panel. Width is 70 mm, which eats one slot in the S7-1200 rail. Cable length up to 200 m, shielded or unshielded – same limit for both. Power draw: 8 W typical, split between load voltage L+ (max 170 mA) and backplane bus 5 V (max 125 mA). Make sure your power budget covers that side. No NEC Class 2 supply required, so a standard 24 V DC PSU works. Permissible voltage range 20.4 to 28.8 V DC – not picky.
Functional and compliance details
For safety applications: low demand mode PFDavg < 1.00E-05, high demand PFH < 4.00E-09. That meets SIL 3 requirements for both modes. Compliance documents: CE, cULus, FM. No RoHS/REACH explicit in the listing, but standard Siemens components are generally RoHS compliant. If you need a specific declaration, ask when you RFQ.