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Siemens 3RV1021-0HA15-ZX95 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV1021-0HA15-ZX95 SIRIUS Motor Protection Circuit B

MPN3RV1021-0HA15-ZX95

Siemens SIRIUS motor protection circuit breaker, 3RV1021-0HA15-ZX95, 0.8 A continuous rated current, Class 10 trip, 100 kA breaking capacity at 400 V AC, screw terminals, DIN rail mount.

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

3RV1021-0HA15-ZX95 — Identification
ParameterValue
SeriesSIRIUS
Product designationcircuit breaker
3RV1021-0HA15-ZX95 — 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
3RV1021-0HA15-ZX95 — Protection & Tripping
ParameterValue
Overload release setting range0.55 ... 0.8 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
Phase-failure detectionYes
Ground-fault detectionNo
Auxiliary switch extendableYes
3RV1021-0HA15-ZX95 — Endurance & Switching
ParameterValue
Auxiliary CO (changeover) contacts0
3RV1021-0HA15-ZX95 — 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)
3RV1021-0HA15-ZX95 — 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
3RV1021-0HA15-ZX95 — Environmental
ParameterValue
Operating temperature-20 ... +60 °C
Storage temperature-50 ... +80 °C
Transport temperature-50 ... +80 °C
Max. installation altitude2 000 m
3RV1021-0HA15-ZX95 — Specifications
ParameterValue
Design Of The Productfor motor protection

Product details

The Siemens SIRIUS 3RV1021-0HA15-ZX95 is a motor protection circuit breaker sized for a 0.8 A continuous current, with a Class 10 trip characteristic and a 100 kA breaking capacity at 400 V AC — meaning it clears faults up to that level without upstream coordination issues.

The 0.8 A continuous rating sets the motor full-load current it protects — pair it with a motor drawing 0.8 A or less. Breaking capacity holds at 100 kA across 240 V, 400 V, 500 V, and 690 V AC (–), giving high fault-current headroom even on stiff 400 V distribution. Screw terminals accept solid conductors 2×(0.5…1.5 mm²) and 2×(0.75…2.5 mm²), and stranded 2×(1…2.5 mm²) and 2×(2.5…6 mm²). The auxiliary switch is transverse design and field-installable.

Zero clearance required at the back and sides — no ventilation gaps needed. Any mounting position works. Shock rated at 25 g for 11 ms. Front IP20 means finger-safe but not washdown.

Frequently asked questions

Will 3RV1021-0HA15-ZX95 drop into a panel specified around 3RV1011-0HA10?

Both are SIRIUS motor protection breakers on the same 45 mm wide DIN-rail footprint, but the 3RV1021 series has a higher 100 kA breaking capacity versus the 3RV1011's lower rating. Check the panel's SCCR requirement — if the original spec was for a lower fault level, the 3RV1021 still fits mechanically but may be over-specced. Terminal sizes and auxiliary switch provisions are similar.

MPN
3RV1021-0HA15-ZX95