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Siemens 3RV1021-1DA15-ZW97 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV1021-1DA15-ZW97 SIRIUS Motor Protection Circuit B

MPN3RV1021-1DA15-ZW97

Siemens SIRIUS, motor protection circuit breaker, 3RV1021-1DA15-ZW97, 3.2 A continuous, Trip Class 10, 100 kA breaking capacity at 400 V AC, screw terminals, for 35 mm DIN rail.

Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

3RV1021-1DA15-ZW97 — Identification
ParameterValue
SeriesSIRIUS
Product designationcircuit breaker
3RV1021-1DA15-ZW97 — Electrical
ParameterValue
Rated voltage690 V
Rated voltage, AC-3 (max.)690 V
Rated impulse withstand voltage (Uimp)6 000 V
Number of poles3
Power loss (AC, hot)7.25 W
Power loss, per pole (AC, hot)2.4 W
3RV1021-1DA15-ZW97 — Protection & Tripping
ParameterValue
Overload release setting range2.2 ... 3.2 A
Trip classCLASS 10
Breaking capacity at 240 V (AC)100 kA
Breaking capacity at 400 V (AC)100 kA
Breaking capacity at 500 V (AC)100 kA
Breaking capacity at 690 V (AC)8 kA
Phase-failure detectionYes
Ground-fault detectionNo
Auxiliary switch extendableYes
3RV1021-1DA15-ZW97 — Endurance & Switching
ParameterValue
Auxiliary CO (changeover) contacts0
3RV1021-1DA15-ZW97 — Connections
ParameterValue
Main-circuit terminal typescrew-type terminals
Main-circuit connector arrangementfront side
Conductor cross-section, finely stranded with ferrule2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Conductor range, AWG (main contacts)2x (14 ... 10)
3RV1021-1DA15-ZW97 — Mechanical
ParameterValue
Height97 mm
Width45 mm
Depth96 mm
Mounting methodscrew and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022
Mounting positionany
3RV1021-1DA15-ZW97 — Environmental
ParameterValue
Operating temperature-20 ... +60 °C
Storage temperature-50 ... +80 °C
Transport temperature-50 ... +80 °C
Max. installation altitude2 000 m
3RV1021-1DA15-ZW97 — Specifications
ParameterValue
Design Of The Productfor motor protection

Product details

Motor Protection Circuit Breaker for the Panel Rail

The Siemens 3RV1021-1DA15-ZW97 is a SIRIUS motor protection circuit breaker rated for 3.2 A continuous current, designed to protect motors up to 1.1 kW at 400 V AC. Screw terminals on both the main and auxiliary circuits accept solid conductors from 0.5 mm² up to 2.5 mm² (two per clamp) and stranded up to 6 mm², covering the typical motor branch wiring range. Power dissipation at rated current is 7.25 W — a factor to include in the panel thermal budget when grouping several breakers.

Zero clearance is required at the back and sides, so the breaker can be installed directly against adjacent devices without derating for air circulation. The auxiliary switch is a transverse design and is field-addable, allowing remote status indication without an extra module. Shock resistance is rated at 25 g for 11 ms, which covers the vibration profile of most industrial machinery and conveyor systems. The maximum operating frequency in AC-3 duty is 15 switching cycles per hour — adequate for motor start/stop applications but not for high-cycling loads like rapid reversing drives.

Frequently asked questions

What is the breaking capacity of 3RV1021-1DA15-ZW97 at 400 V?

100 kA at 400 V AC, 100 kA at 500 V AC, and 8 kA at 690 V AC. The high interrupting rating at typical motor branch voltages means it coordinates well with upstream fuses or breakers in most industrial panels.

What motor power does 3RV1021-1DA15-ZW97 protect at 400 V?

Rated for 1.1 kW at 400 V AC-3 duty, with a continuous current setting of 3.2 A and Trip Class 10. This matches a standard 1.1 kW four-pole induction motor.

Does 3RV1021-1DA15-ZW97 include phase failure protection?

Yes, phase failure detection is built in. The breaker will trip if one phase is lost, preventing single-phase motor operation and the resulting overheating.

Where can I buy 3RV1021-1DA15-ZW97 and how is it quoted?

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

What compliance documentation is available for 3RV1021-1DA15-ZW97?

The part carries a RoHS compliance date of 01.05.2012, indicating it meets EU substance restrictions. The SIRIUS product family typically provides IEC and UL certifications; verify specific UL file numbers with the order documentation.

MPN
3RV1021-1DA15-ZW97