The Siemens 6ES5741-0AB21 is a specialized module holder designed for the Simatic S5 PLC product family. This component serves as the primary mechanical and electrical interface for mounting and interconnecting various I/O and CPU modules within an S5 automation rack. Built to withstand the rigorous demands of legacy industrial environments, it provides a stable foundation for control systems in sectors such as manufacturing, power distribution, and process automation, ensuring reliable backplane communication and structural support for installed hardware.
| Model | 6ES5741-0AB21 |
| Brand | Siemens |
| Series | Simatic S5 |
| Operating Temperature | 0 to 60 deg C |
| Storage Temperature | -40 to 70 deg C |
| Relative Humidity | 95% non-condensing |
| Cooling | Natural convection |
No, this model is a passive mechanical and electrical module holder. It does not contain active processing circuitry and serves as the structural and communication bus interface for other S5 modules.
Yes, the unit is constructed to provide a rigid mechanical mounting base, which helps maintain secure electrical connectivity between the backplane and the modules in challenging industrial conditions.
Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.
Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.
We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.