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Siemens 3RV2021-1DA10-ZW96 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV2021-1DA10-ZW96 SIRIUS Motor Protection Circuit B

MPN3RV2021-1DA10-ZW96
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Siemens SIRIUS 3RV2021-1DA10-ZW96 motor protection circuit breaker, Class 10 trip, 100 kA breaking capacity at 400 V, screw and snap-on 35 mm DIN rail mounting.

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

3RV2021-1DA10-ZW96 — Identification
ParameterValue
SeriesSIRIUS
Product designationCircuit breaker
Frame sizeS0
3RV2021-1DA10-ZW96 — Electrical
ParameterValue
Rated operational current (Ie)3.2 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
3RV2021-1DA10-ZW96 — Protection & Tripping
ParameterValue
Overload release setting range2.2 ... 3.2 A
Instantaneous short-circuit trip current42 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)10 kA
Breaking capacity at 240 V100 kA
Breaking capacity at 690 V10 kA
Short-circuit trip typemagnetic
Overload release typethermal
Short-circuit protectionYes
Phase-failure detectionYes
Ground-fault detectionNo
Auxiliary switch extendableYes
3RV2021-1DA10-ZW96 — 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
3RV2021-1DA10-ZW96 — 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)
3RV2021-1DA10-ZW96 — Mechanical
ParameterValue
Height97 mm
Width45 mm
Depth97 mm
Mounting methodscrew and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 60715
Mounting positionany
3RV2021-1DA10-ZW96 — 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
3RV2021-1DA10-ZW96 — Specifications
ParameterValue
Design Of The ProductFor motor protection

Product details

Clearance requirements: 50 mm above and below, 30 mm to the side, zero forward or backward — so it fits tight against a backpanel or gland plate as long as vertical airflow is respected.

Breaking capacity across voltage levels

Breaking capacity is voltage-dependent: 100 kA at 240 V and 400 V AC, dropping to 10 kA at 690 V. This is a motor-protective device, not a general-purpose distribution breaker — the 100 kA rating at 400 V means it can be installed on a high-fault panel without requiring an upstream current-limiting fuse, as long as the motor full-load current falls within the adjustable thermal range.

Environmental and operational limits

Rated for operation between -20 °C and +60 °C with temperature compensation active across that same span. Storage and transport range extends from -50 °C to +80 °C. Any mounting position is acceptable. The unit includes phase failure detection but no ground fault detection — if ground fault protection is required on the motor circuit, it must be added externally via a separate module or upstream device.

Lifecycle stage is listed as current, meaning the manufacturer has not issued a phase-out notice.

Frequently asked questions

Where can I buy 3RV2021-1DA10-ZW96?

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

What is the breaking capacity of 3RV2021-1DA10-ZW96 at 400 V?

100 kA at 400 V AC, which is the highest rating across its voltage range and covers most industrial distribution panels.

What does Class 10 trip mean for motor protection?

Class 10 means the breaker trips within 10 seconds at 7.2× the thermal setting, fast enough to protect standard motors during a locked-rotor event without tripping on normal starting inrush.

Will 3RV2021-1DA10-ZW96 drop into a panel specified around 3RV1011-0GA10 without rewiring?

Both are SIRIUS motor protection breakers with similar DIN-rail footprint and screw terminals, but the 3RV2021-1DA10-ZW96 has a 45 mm width versus the 3RV1011-0GA10's 45 mm width — same slot size. Terminal capacity accepts 2x (1–2.5 mm²) solid/stranded and 2x (2.5–10 mm²), so existing wiring should transfer. Verify the thermal setting range matches your motor FLA before swapping.

MPN
3RV2021-1DA10-ZW96