The Siemens SIMATIC S7-300 PLC series is a proven legacy automation system widely used in industrial control applications offering reliability flexibility and long service life the S7-300 includes CPUs signal modules and communication modules designed for scalable solutions in manufacturing process industries and machine automation although replaced by the S7-1500 in new installations the S7-300 remains in high demand for spare parts and maintenance worldwide.

Return to the Siemens PLCs main category to explore the complete portfolio including S7-1500 S7-300 S7-400 and LOGO controllers