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Siemens 3RV2021-0JA15 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV2021-0JA15 SIRIUS Motor Protection Circuit Breake

MPN3RV2021-0JA15
Active

Siemens SIRIUS motor protection circuit breaker, 3RV2021-0JA15, Trip Class 10, 100 kA breaking capacity at 400 V, 45 mm wide, screw and snap-on DIN rail mount.

Siemens 3RV2021-0JA15 datasheet (PDF)
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

3RV2021-0JA15 — Identification
ParameterValue
SeriesSIRIUS
Product designationCircuit breaker
Frame sizeS0
3RV2021-0JA15 — Electrical
ParameterValue
Rated operational current (Ie)1 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
3RV2021-0JA15 — Protection & Tripping
ParameterValue
Overload release setting range0.7 ... 1 A
Instantaneous short-circuit trip current13 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
3RV2021-0JA15 — 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
3RV2021-0JA15 — Connections
ParameterValue
Main-circuit terminal typescrew-type terminals
Main-circuit connector arrangementTop and bottom
Conductor cross-section, solid / stranded2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Conductor cross-section, finely stranded with ferrule2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Conductor range, AWG (main contacts)2x (16 ... 12), 2x (14 ... 8)
3RV2021-0JA15 — 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
3RV2021-0JA15 — 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
3RV2021-0JA15 — Specifications
ParameterValue
Design Of The ProductFor motor protection

Product details

Rated for 20 to 690 V AC, it delivers a 100 kA breaking capacity at 400 V, 500 V, and 690 V, so it can safely interrupt high-fault currents in industrial distribution panels without upstream fuses or larger breakers. At 230 V it is rated for 0.2 kW motor loads; at 575/600 V it covers 0.5 hp. Ground fault detection is not included, so a separate ground-fault relay is needed if that protection is required.

Main circuit terminals are M4 screw-type, accepting 2× (0.5 to 1.5 mm²) or 2× (0.75 to 2.5 mm²) solid or stranded wire. The 50 mm clearance above and below the unit (no side clearance needed) simplifies wiring in dense panels.

Frequently asked questions

What is the breaking capacity of 3RV2021-0JA15?

It offers 100 kA breaking capacity at 240 V, 400 V, 500 V, and 690 V AC, providing high fault-current interruption capability.

What is the Trip Class of 3RV2021-0JA15?

It is Trip Class 10, meaning it will trip within 10 seconds at 7.2× the thermal setting, suitable for standard motor starting profiles.

Where can I buy 3RV2021-0JA15?

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

MPN
3RV2021-0JA15