BOM / RFQ

Siemens 3RA1240-4FB44-0BF4

MPN3RA1240-4FB44-0BF4

Combination starter Reversing DIN/panel mount,IEC SIRIUS Frame size S3,28 - 40a 110 VDC control voltage MSP aux-none Contactor auxiliary-none

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Independent China distributor & sourcing agent· Listing updated Sep 2026

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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.

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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 3RA1240-4FB44-0BF4

6ES7212-1AE40-0XB0

6ES7211-1AE40-0XB0

6ES7211-1HE40-0XB0

6ES7217-1AG40-0XB0

6ES7211-1BE40-0XB0

6ES7212-1BE40-0XB0