BOM / RFQ

Siemens 6ES7840-0CA01-0YX4

Name: 6ES7840-0CA01-0YX4
Brand: Siemens
SKU: 6ES7840-0CA01-0YX4
Availability: LimitedAvailability

MPN6ES7840-0CA01-0YX4

S7-PDIAG, Upgrade von V3 auf V4

Add to RFQ

Source DocumentedChannel stated on listing & quote

Condition PhotosReal unit photos / video on request

WhatsApp AnswersFast human replies for machine-down parts

Worldwide DispatchDHL/FedEx — transit quoted per order

Independent China distributor & sourcing agent· Listing updated Sep 2026

Pricing & Availability

Contact for availability

Request a quote for pricing

Volume discounts available

Lead time: Contact for availability

*Sample & small orders welcome — quoted per order; a small handling charge may apply below MOQ.

Add to RFQ

WhatsApp for Urgent Stock & Photos

Fastest response for machine down / emergency orders

RFQ — this part

Submit without leaving this page. Same pipeline as the BOM / RFQ form.

About the brand

Siemens

Siemens parts are sourced across every condition — factory-new current-production lines, new-old-stock, surplus, refurbished-and-bench-tested and used clean-pull units — through our independent distributor channels; each listing states its condition. Request a quote for live pricing, availability, and lead times.

View all SIMATIC S7 PLC parts →

Siemens Series Alternatives & Replacements

Alternative models and sibling configurations in the same Siemens series. For obsolete or discontinued parts, these models can serve as compatible replacements or functional alternatives for plant maintenance.

Siemens 6ES7840-0CA01-0YX4

6ES7212-1AE40-0XB0

6ES7211-1AE40-0XB0

6ES7211-1HE40-0XB0

6ES7217-1AG40-0XB0

6ES7211-1BE40-0XB0

6ES7212-1BE40-0XB0