BOM / RFQ

Siemens 5SX21-B16

MPN5SX21-B16

End of Life

5SX21-B16 - CIRCUIT BREAKER by SIEMENS

$109.65Ref. price · indicative, final on quote

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Source DocumentedChannel stated on listing & quote

Condition PhotosReal unit photos / video on request

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Worldwide DispatchDHL/FedEx — transit quoted per order

Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

5SX21-B16 — Specifications
Parameter	Value
Weight	0.12 kgs

Pricing & Availability

Contact for availability

Wholesale Ref.*

$109.65

Lead time: Contact for availability

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

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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 5SX2 Miniature Breakers 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 5SX21-B16

Specifications

6ES7212-1AE40-0XB0

6ES7211-1AE40-0XB0

6ES7211-1HE40-0XB0

6ES7217-1AG40-0XB0

6ES7211-1BE40-0XB0

6ES7212-1BE40-0XB0