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Siemens 3RV2021-1CA10-0DA0 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV2021-1CA10-0DA0 SIRIUS 3RV2 Motor Starter Protect

MPN3RV2021-1CA10-0DA0
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Siemens SIRIUS 3RV2 motor starter protector, size S0, circuit breaker 3RV2021-1CA10-0DA0, A-release 1.8...2.5 A, short-circuit release 33 A, screw terminal, standard switching capacity.

Siemens 3RV2021-1CA10-0DA0 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RV2021-1CA10-0DA0 — 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 : EAR99
Compliance with the substance restrictions according to RoHS directiveSince: 01-10-09

Product details

Motor starter protector for system protection

The Siemens 3RV2021-1CA10-0DA0 is a SIRIUS 3RV2 motor starter protector in size S0, configured for system protection without phase failure protection. The A-release (overload protection) is set for 1.8...2.5 A, and the short-circuit release trips at 33 A. Termination is via screw terminals, and the unit carries standard switching capacity.

The 1.8...2.5 A overload range (A-release) is the continuous current the protector will carry without tripping; set it to match the motor's full-load amperage. The 33 A short-circuit release is the instantaneous magnetic trip threshold — it clears a fault before the overload element responds, protecting downstream wiring and the contactor. Size S0 means the physical footprint fits the standard SIRIUS mounting rail and bus system, common in Siemens motor control centers.

Frequently asked questions

What is the overload and short-circuit protection range for this circuit breaker?

The A-release (overload) is adjustable from 1.8 A to 2.5 A, and the short-circuit release is fixed at 33 A. This is a size S0 device with screw terminals for system protection without phase failure protection.

What compliance documentation is available for 3RV2021-1CA10-0DA0?

RoHS compliance is confirmed since 01-10-09. REACH Article 33 duty-to-inform information is available on the current candidate list. Export controls are AL: N / ECCN: EAR99.

Where can I buy 3RV2021-1CA10-0DA0?

This part is sourced and quoted to order against an RFQ through independent industrial automation distribution. Availability and current pricing are confirmed at the time of quote.

MPN
3RV2021-1CA10-0DA0