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Siemens 3RV2021-1AA10 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV2021-1AA10 SIRIUS Motor Protection Circuit Breake

MPN3RV2021-1AA10
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Siemens SIRIUS 3RV2021-1AA10 motor protection circuit breaker, Class 10 trip, 100 kA breaking capacity at 400 V AC, screw and snap-on DIN rail mount.

Siemens 3RV2021-1AA10 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RV2021-1AA10 — Identification
ParameterValue
SeriesSIRIUS
Product designationCircuit breaker
Frame sizeS0
3RV2021-1AA10 — Electrical
ParameterValue
Rated operational current (Ie)1.6 A
Rated voltage20 ... 690 V
Rated voltage, AC-3 (max.)690 V
Rated frequency50 ... 60 Hz
Rated insulation voltage (Ui), pollution degree 3690 V
Rated impulse withstand voltage (Uimp)6 kV
Number of poles3
Power loss (AC, hot)7.25 W
Power loss, per pole (AC, hot)2.4 W
3RV2021-1AA10 — Protection & Tripping
ParameterValue
Overload release setting range1.1 ... 1.6 A
Instantaneous short-circuit trip current21 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)100 kA
Breaking capacity at 240 V100 kA
Breaking capacity at 690 V100 kA
Short-circuit trip typemagnetic
Overload release typethermal
Short-circuit protectionYes
Phase-failure detectionYes
Ground-fault detectionNo
Auxiliary switch extendableYes
3RV2021-1AA10 — Endurance & Switching
ParameterValue
Endurance, main contacts (typ.)100 000
Endurance, auxiliary contacts (typ.)100 000
Switching frequency, AC-3 (max.)15 1/h
Auxiliary CO (changeover) contacts0
3RV2021-1AA10 — Connections
ParameterValue
Main-circuit terminal typescrew-type terminals
Main-circuit connector arrangementTop and bottom
Conductor cross-section, solid / stranded2x (1 ... 2.5 mm²), 2x (2.5 ... 10 mm²)
Conductor cross-section, finely stranded with ferrule2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²), 1x 10 mm²
Conductor range, AWG (main contacts)2x (16 ... 12), 2x (14 ... 8)
3RV2021-1AA10 — Mechanical
ParameterValue
Height97 mm
Width45 mm
Depth97 mm
Mounting methodscrew and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715
Mounting positionany
3RV2021-1AA10 — Environmental
ParameterValue
Operating temperature-20 ... +60 °C
Storage temperature-50 ... +80 °C
Transport temperature-50 ... +80 °C
Relative humidity (operation)10 ... 95 %
Max. installation altitude2 000 m
3RV2021-1AA10 — Specifications
ParameterValue
Design Of The ProductFor motor protection

Product details

Motor Protection Circuit Breaker for Panel Integration

Ground fault detection is not included — this is a standard motor-only protector, not a combined GFCI device.

Width is 45 mm — a single modular DIN-rail space — with 97 mm depth and height. Main contact terminals accept M4 screws; wire range is 2× (1 to 2.5 mm²) or 2× (2.5 to 10 mm²) solid or stranded. Screwdriver shaft diameter 5 to 6 mm for the terminal screws. Mounting position is any orientation, so vertical or horizontal DIN-rail placement works without derating the thermal trip curve.

Ratings and Operating Conditions

Rated insulation voltage spans 20 to 690 V. Breaking capacity holds at 100 kA across 240 V, 400 V, 500 V, and 690 V AC. At 480 V the rated current is 1.6 A; at 600 V also 1.6 A. Horsepower ratings: 0.1 hp at 230 V, 1 hp at 460/480 V, 0.8 hp at 575/600 V. Maximum switching frequency under AC-3 duty is 15 operations per hour.

Frequently asked questions

What is the breaking capacity of 3RV2021-1AA10?

100 kA at 240 V, 400 V, 500 V, and 690 V AC — sufficient for high-fault-current industrial panels.

Will 3RV2021-1AA10 drop into a panel specified for 3RV2021-0HA15?

Both are 45 mm wide SIRIUS motor protection breakers on the same DIN-rail footprint, so mechanical fit is identical. Verify the trip class and current rating on the nameplate — the 3RV2021-1AA10 is Class 10; the 0HA15 variant may differ.

Where can I buy 3RV2021-1AA10?

This part is 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 commitment.

MPN
3RV2021-1AA10