SIMATIC S5 8 digital input module 24 V DC
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6ES5421-8MA12 – SIMATIC S5 8 digital input module 24 V DC is a SIMATIC S5 421 digital input module with 8 inputs for 24 V DC signals. The module is non-isolated and was used with compact S5 systems and ET 100U / ET 200U distributed I/O.
Check the complete 6ES5421-8MA12 order number when selecting a replacement, as the 421 family includes versions with different input voltages and isolation concepts.
Manufacturer documentation and product information are available from Siemens Industry Mall. Related products in the POLRAD catalog: 6ES5434-4UA12, 6ES5441-4UA12.
For service replacement, compare the complete catalog number and device parameters with the machine documentation. If you are unsure, send us the marking from the installed module and we can help verify the correct variant.
