Siemens 6ES7924-2CA20-0AA0 SIMATIC TOP Connect TP3 32-Channel Screw PLC Connection Module

The Siemens 6ES7924-2CA20-0AA0 is a SIMATIC TOP connect TP3 connection module with 32 channels and a 3-wire potential connection using screw terminals without LED, built for wiring SIMATIC S7-1500 digital I/O modules. It handles up to 1 A per pin and 2 A total current at 24 V DC (max 50 V), and carries ATEX, IECEx and UKEX hazardous-area ratings.

Technical Specifications

Certifications & Standards

• cULus
• IECEx
• ATEX
• ULhazloc
• UKEX
• CCC-Ex
• EEx e
• Environmental Product Declaration

Selection Notes

The TP3 3-wire potential distribution (33 L+ and 33 M terminals against TP1's 8 and 8) supports sensors and actuators that each need an individually switched supply line rather than a shared potential rail, at the cost of a wider 175 mm housing. Screw terminals rated at 0.4-0.5 N.m suit panels where field wiring gets re-torqued during maintenance; the push-in TP3 sibling trades that torque-checked connection for faster initial wiring. ATEX, IECEx and UKEX ratings alongside cULus make it usable on the panel side of a hazardous-area installation.

Applications

Fully modular field wiring for SIMATIC S7-1500 digital I/O where each channel needs its own switched potential line, including panels in ATEX/IECEx/UKEX Zone 2 hazardous areas.