What it is and what it does
The Siemens 6ES7924-1AA10-0BB0 is a connection module providing 2x8 channels with 2x2x2 terminals for potential supply, using spring terminal connections with LED indication. It carries a rated voltage of 60 V and a rated current of 1 A, so it's sized for signal-level and low-power distribution, not motor or power circuit wiring. The module mounts on either 35 mm or 15 mm DIN rail, giving flexibility in panel layouts where rail width varies between sections. Its enclosure measures 100 mm wide, 80 mm long, and 43.2 mm high in the lowest-profile installation.
Wire termination and temperature range
Terminals accept stranded wire from 0.5 mm² up to 2.5 mm², and finely stranded wire with core-end processing from 0.5 mm² to 1.5 mm². The single terminal level per position with plug-in connection means pre-fabricated cable harnesses can be docked without tools. Operating temperature range is 0 °C to 60 °C, which covers most indoor control cabinet environments but not unheated enclosures in freezing conditions.