S7-300Discontinued
SIMATIC S7-300 controller (PLC), discontinued
SIMATIC S7-300
Modular Siemens controller removed from the portfolio on 1 October 2025 and supplied only as spare parts and repair; the recommended successor is S7-1500
Products
Siemens product families in four branches, each with order codes, specifications and documents.
4 product families
4 of 4 families
DiscontinuedClear all
Product families
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MM420DiscontinuedMICROMASTER 420 frequency converter
MICROMASTER 420
Basic Siemens MICROMASTER 4 converter from 0.12 kW to 11 kW with V/f control; Siemens has cancelled it and points to SINAMICS G120C as the replacement
MM430DiscontinuedMICROMASTER 430 frequency converter
MICROMASTER 430
Siemens MICROMASTER 4 converter for pumps and fans, from 7.5 kW to 250 kW; Siemens has cancelled it and points to SINAMICS G120X as the replacement
MM440DiscontinuedMICROMASTER 440 frequency converter
MICROMASTER 440
Versatile Siemens MICROMASTER 4 converter with vector control, from 0.12 kW to 250 kW; Siemens has cancelled it and points to the modular SINAMICS G120 as the replacement
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