BOM / RFQ

Siemens 3RF21201AA42

MPN3RF21201AA42

Solid State Relays

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Siemens 3RF21201AA42 datasheet (PDF)

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Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

3RF21201AA42 — Specifications
Parameter	Value
Contact form	FormA
Mounting	Chassis Mount
On delay time	0.001
Off delay time	0.001

Pricing & Availability

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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 Siemens 3RF21 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 3RF21201AA42

Specifications

6ES7212-1AE40-0XB0

6ES7211-1AE40-0XB0

6ES7211-1HE40-0XB0

6ES7217-1AG40-0XB0

6ES7211-1BE40-0XB0

6ES7212-1BE40-0XB0