10 fail-safe outputs, 2 A each, SIL 3
The Siemens 6ES7326-2BF00-0AB0 is a SIMATIC S7 SM 326 fail-safe digital output module delivering 10 outputs rated 2 A per channel at 24 V DC, designed for S7F safety systems. It carries SIL 3 per IEC 61508 and Cat. 4 per EN 954, so it fits safety circuits up to the highest integrity level for machine guarding and emergency stop zones.
End-of-life — sourcing reality
This module is end-of-life (EOL) from Siemens.
Diagnostics and isolation per channel
The module provides diagnostic alarm and group error (SF red) indication, with isolation tested at 75 V DC between channels and between channels and the backplane bus. Channels are isolated in groups of 5, which means a fault on one output in a group does not pull down the other group — useful for splitting a safety zone across two groups.
Switching performance and load limits
Resistive load switching is rated at 30 Hz max; inductive load drops to 2 Hz, and lamp load to 10 Hz. The 2 A per channel holds up to 60 °C without derating. The inductive shutdown voltage is clamped to L+ (-53 V) without a series diode, or L+ (-33 V) with one — this limits back-EMF on solenoid or contactor coils.