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Siemens 3RV2421-4AA10-Z X95 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV2421-4AA10-Z X95 SIRIUS 3RV2 Circuit Breaker, 10-

MPN3RV2421-4AA10-Z X95

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Siemens SIRIUS 3RV2 motor starter protector, size S0, for transformer protection, A-release 10-16A, N-release 286A, screw connection, standard switching capacity.

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Siemens 3RV2421-4AA10-Z X95 datasheet (PDF)

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RV2421-4AA10-Z X95 — Specifications
Parameter	Value
Group code	R711
Product group	5333
Product class	C: products manufactured / produced to order, which cannot be reused or re-utilized or be returned against credit.
Series	SIRIUS 3RV2 motor starter protectors
Export control regulations	AL : N / ECCN : EAR99
Compliance with the substance restrictions according to RoHS directive	Since: 01-10-09

Product details

The Siemens 3RV2421-4AA10-Z X95 is a SIRIUS 3RV2 motor starter protector in size S0, specifically configured for transformer protection. It carries an A-release (overload) set for 10-16 A and a magnetic N-release (short-circuit) at 286 A, with screw terminals and standard switching capacity.

The A-release range of 10-16 A sets the thermal overload pickup — this breaker protects the transformer primary winding, not a motor. Standard switching capacity means it's rated for typical industrial distribution panel duty, not high-fault locations requiring a higher SCCR variant.

RoHS compliant since October 1, 2009. Packaging dimensions are 102 x 49 x 102 mm, single unit.

Frequently asked questions

Where can I buy the 3RV2421-4AA10-Z X95?

It's sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time.

What compliance documentation does this part have?

RoHS compliant since October 1, 2009. REACH Article 33 disclosure: contains Lead (CAS 7439-92-1) above 0.1% w/w. Export control classification is AL: N / ECCN: EAR99.