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JWDrive supplies SIMATIC S7-300 / S7-400 parts for Siemens systems worldwide — quote within 24 hours, worldwide dispatch in 3–7 days. This series is discontinued by the manufacturer; we source remaining stock and propose functional replacements when originals run out.
6ES7 3xx/4xx controllers Discontinued series — sourced & supported
The SIMATIC S7-300/400 product family, a discontinued series of 6ES7 3xx/4xx controllers by Siemens, is a modular PLC platform designed for a wide range of industrial automation applications. It is commonly used in process control, motion control, and discrete automation in various industries.
How we support this series
Send us any part number from this series — CPU, I/O module, drive, terminal or sensor. You get a quote in 24 hours with lead time, warranty, and — when the original is obsolete or over long lead time — a functional replacement proposal matched on specs, mounting and communication.
Discontinued, obsolete or overpriced part? Our engineers propose functional replacements that keep your line running — same function, matched specs, faster delivery.
Selection help, retrofit and migration guidance for legacy platforms — from Siemens S5 to S7-1500, from PLC-5 to CompactLogix. We speak your automation language.
Stocked items dispatch within 2 business days of payment confirmation, tracked worldwide by DHL, FedEx or air freight. Consolidated packing for mixed parts lists.