Skip to main content
Log in
Siemens 3RV2021-1CA10-Z W97 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV2021-1CA10-Z W97 SIRIUS Motor Protector, 1.8-2.5

MPN3RV2021-1CA10-Z W97
Active

Siemens SIRIUS 3RV2 motor starter protector, frame size S0, Class 10, thermal release 1.8...2.5 A, short-circuit release 33 A, screw terminal, standard switching capacity, multi-unit packaging (pack = 12 units).

Siemens 3RV2021-1CA10-Z W97 datasheet (PDF)
StockContact for availability
Lead timeIn Stock wk
MOQ1 pcs
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
How we verify every order →

Specifications

Specifications

3RV2021-1CA10-Z W97 — Specifications
ParameterValue
Group codeR711
Product group5333
Product classA: Standard product which is a stock item could be returned within the returns guidelines/period.
SeriesSIRIUS 3RV2 motor starter protectors
Export control regulationsAL : N / ECCN : N
Compliance with the substance restrictions according to RoHS directiveSince: 01-10-09

Product details

Motor protection circuit breaker, S0 frame, 1.8–2.5 A

The Siemens 3RV2021-1CA10-Z W97 is a SIRIUS 3RV2 motor starter protector in frame size S0, set for motor protection with a Class 10 thermal release adjustable from 1.8 to 2.5 A and a fixed magnetic short-circuit release at 33 A. The 33 A magnetic instantaneous trip handles the inrush without nuisance tripping on start, then clears a bolted fault fast enough to limit let-through energy to downstream contactors. Termination is screw-type, standard switching capacity, and the unit ships in multi-unit packaging (12 pieces per pack). Frame size S0 fits the SIRIUS common mounting rail and bus system, so it integrates directly with 3RT2 contactors and 3RU2 thermal overloads in the same panel footprint — no adapter brackets needed.

RoHS compliant since 1 October 2009. This is standard for electrical terminals and solder joints; the declaration supports your downstream REACH communication obligations.

Frequently asked questions

What is the closest alternative to 3RV2021-1CA10-Z W97 in the SIRIUS family?

Within the SIRIUS 3RV2 family, the standard alternative is the same base order code without the '-Z W97' suffix. The '-Z W97' denotes a special version (often multi-unit packaging or a specific customer variant). The standard single-unit version shares the same electrical ratings (Class 10, 1.8–2.5 A thermal, 33 A magnetic) and the same S0 frame footprint. If your BOM can accept the standard packaging, that variant is a direct drop-in.

Where can I buy the 3RV2021-1CA10-Z W97?

This part is sourced and quoted to order against an RFQ through independent industrial-automation distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead-time commitment.

What compliance documentation does Siemens provide for this part?

RoHS compliance is declared effective 1 October 2009. REACH Article 33 duty to inform applies: the part contains lead (CAS 7439-92-1) above 0.1% w/w. No UL or IEC certification numbers are listed in the available documentation, but the SIRIUS 3RV2 series typically carries IEC/EN 60947-4-1 and UL 508 listing — verify the specific certification marking on the nameplate if your application requires it.

MPN
3RV2021-1CA10-Z W97