What it is and where it fits
The Siemens 6ES7924-0BB10-0BA0 is a connection module for the SIMATIC S7 TP2 system, providing 8 channels for 2 A digital output signals via a 16-pole IDC connector. It uses screw-type terminals with LED indication and includes 2x5 multiplication terminals for flexible wiring. Rated at 60 V and 1 A, it handles signal-level outputs in a control panel — not power switching. Mounts on 35 mm or 15 mm DIN rail, so it integrates into standard enclosure layouts alongside other rail-mounted I/O and terminal blocks. The 80 mm length and 68 mm width keep panel fill factor manageable.
Wiring and termination
Accepts stranded wire from 0.5 to 2.5 mm², with or without core-end processing, and the same range for finely stranded conductors. That covers most field wiring for 24 VDC digital output circuits — typical for solenoid valves, contactor coils, and indicator lamps. The single terminal level per point keeps wiring tidy. No PE connection and no shield connection on this module, so it's intended for use where the cable shield is grounded at the controller side or via a separate terminal block. The infeed function is present, meaning it can supply voltage to downstream modules without an additional power feed.
Compliance and approvals
The enclosure material carries a UL 94 V-1 flammability rating, which is standard for industrial control equipment installed in UL-listed panels. The reference code per IEC 81346-2 is X, classifying it as a connection point in the system documentation.