What it is and what it does
The Siemens 6ES7222-1BD30-0XB0 is a SIMATIC S7-1200 Signal Board SB 1222 carrying four digital outputs, each rated 24 V DC and 0.1 A maximum with resistive load, switching at up to 200 kHz. The outputs are MOSFET solid-state, configurable as current-sinking or current-sourcing, and the module draws 35 mA from the backplane 5 V bus. No external short-circuit protection is built in — plan for a per-channel fuse or electronic breaker if the load wiring runs outside the cabinet.
Temperature range and derating
The SB 1222 is rated for an ambient operating range of -40 °C to 70 °C, but that full span only applies when mounted horizontally. Vertical installation derates the maximum to 50 °C, with the minimum rising to -20 °C. Horizontal installation allows up to 60 °C. If the panel runs hot and the module is upright, you lose 20 °C off the top end — factor that into the thermal budget.
Approvals and compliance
Carries cULus, CE, CSA, FM, KC, marine, and RCM approvals — covers North America, Europe, Korea, and maritime applications. The product status is active, so it's a current catalog item with no end-of-life notice. For compliance documentation, the manufacturer provides UL, CSA, CE, and FM declarations; RoHS and REACH are standard for this series.