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Siemens 3RV2021-0JA20-ZX95 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV2021-0JA20-ZX95 SIRIUS Motor Protection Circuit B

MPN3RV2021-0JA20-ZX95
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Siemens SIRIUS motor protection circuit breaker, 3RV2021-0JA20-ZX95, Size S0, Trip Class 10, 100 kA breaking capacity at 400 V AC, spring-loaded terminals.

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

3RV2021-0JA20-ZX95 — Identification
ParameterValue
SeriesSIRIUS
Product designationCircuit breaker
Frame sizeS0
3RV2021-0JA20-ZX95 — 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
3RV2021-0JA20-ZX95 — 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
3RV2021-0JA20-ZX95 — 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
3RV2021-0JA20-ZX95 — Connections
ParameterValue
Main-circuit terminal typespring-loaded terminals
Main-circuit connector arrangementTop and bottom
Conductor cross-section, solid / stranded2x (1 ... 10 mm²)
Conductor cross-section, finely stranded with ferrule2x (1 ... 6 mm²)
3RV2021-0JA20-ZX95 — Mechanical
ParameterValue
Height119 mm
Width45 mm
Depth97 mm
Mounting methodscrew and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715
Mounting positionany
3RV2021-0JA20-ZX95 — 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
3RV2021-0JA20-ZX95 — Specifications
ParameterValue
Design Of The ProductFor motor protection

Product details

Its 100 kA breaking capacity at 400 V AC (and across the 240–690 V AC range) means it can safely interrupt high fault currents without upstream fuses in most industrial panel designs — a key spec for SCCR coordination. Trip Class 10 matches the thermal characteristics of standard induction motors, tripping within 10 seconds at 7.2× rated current.

The 45 mm width and 97 mm depth fit standard S0 panel layouts; any mounting position is acceptable. Clearance: 50 mm above and below, 30 mm at the sides, zero forwards or backwards — tight panel integration is straightforward. Spring-loaded terminals accept 2× (1–10 mm²) solid or stranded wire — no lug crimping, just strip and insert. Screwdriver shaft diameter 3 mm, tip 3.0 × 0.5 mm for the terminal actuation.

Frequently asked questions

How do I get current pricing and availability for 3RV2021-0JA20-ZX95?

Submit an RFQ through this listing. The part is sourced to order; pricing and stock are confirmed at quote time.

What is 3RV2021-0JA20-ZX95's listed depth and width?

Depth is 97 mm, width is 45 mm, height is 119 mm.

Will 3RV2021-0JA20-ZX95 drop into a panel specified around 3RV2011-0BA20 without rewiring?

Both are S0 frame size, same DIN rail footprint and terminal style. The 3RV2021-0JA20-ZX95 carries a higher 100 kA breaking capacity versus the 3RV2011-0BA20's typical 55 kA — verify the panel's SCCR requirement before swapping. Wiring interface is the same spring-loaded terminal type.

MPN
3RV2021-0JA20-ZX95