Siemens 6ES7924-0BF20-0BA0 SIMATIC TOP Connect TPOo 24V DC 4A Optocoupler Module

The Siemens 6ES7924-0BF20-0BA0 is a SIMATIC TOP connect TPOo optocoupler connection module that isolates eight 24 V DC digital output channels, each switching up to 4 A, for a SIMATIC S7-300/1500. Screw terminals with a status LED wire the field side, and a 16-pole IDC connector links the module to the front connector module on a 35 mm DIN rail.

Technical Specifications

Certifications & Standards

• cULus
• EPD

Selection Notes

Each optocoupler stage carries up to 4 A per output and the module totals 32 A across all eight channels, with the supply feed for each group of four channels capped at 16 A — plan cabinet power distribution around that per-group limit rather than the per-channel figure alone. The optocoupler isolates the field-side switching from the SIMATIC S7 output card, which is the main reason to specify TPOo over a plain screw-terminal module on higher-current digital outputs. The 500 operations/s maximum switching frequency covers standard digital output duty but rules this module out for high-speed pulse outputs.