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Siemens 3RV2021-1EA10-ZW96 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV2021-1EA10-ZW96 SIRIUS Motor Protection Circuit B

MPN3RV2021-1EA10-ZW96
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Siemens SIRIUS 3RV2021-1EA10-ZW96 motor-protective circuit breaker, Class 10 trip, 100 kA breaking capacity at 400 V AC, 45 mm width, screw and snap-on DIN-rail mounting.

Siemens 3RV2021-1EA10-ZW96 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

3RV2021-1EA10-ZW96 — Identification
ParameterValue
SeriesSIRIUS
Product designationCircuit breaker
Frame sizeS0
3RV2021-1EA10-ZW96 — Electrical
ParameterValue
Rated operational current (Ie)4 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
3RV2021-1EA10-ZW96 — Protection & Tripping
ParameterValue
Overload release setting range2.8 ... 4 A
Instantaneous short-circuit trip current52 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)6 kA
Breaking capacity at 240 V100 kA
Breaking capacity at 690 V4 kA
Short-circuit trip typemagnetic
Overload release typethermal
Short-circuit protectionYes
Phase-failure detectionYes
Ground-fault detectionNo
Auxiliary switch extendableYes
3RV2021-1EA10-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
3RV2021-1EA10-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
3RV2021-1EA10-ZW96 — 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
3RV2021-1EA10-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
3RV2021-1EA10-ZW96 — Specifications
ParameterValue
Design Of The ProductFor motor protection

Product details

The Siemens 3RV2021-1EA10-ZW96 is a SIRIUS motor-protective circuit breaker designed to protect motors against overload and short-circuit. The Class 10 trip characteristic matches the thermal time constant of standard induction motors, so it lets inrush pass but catches a locked-rotor condition before the winding insulation degrades.

Compared to the sibling 3RV2021-1FA15, the 3RV2021-1EA10-ZW96 shares the same 45 mm width and Class 10 trip class. The -ZW96 suffix indicates a special version.

The 45 mm width takes up one standard module slot, leaving space for a contactor and overload relay in a motor starter group. Screw-type terminals accept 2x 1…2.5 mm² or 2x 2.5…10 mm² solid/stranded, so common panel wire sizes land without lug adapters.

Frequently asked questions

Will 3RV2021-1EA10-ZW96 drop into a panel specified around 3RV2021-1FA15?

The footprint is identical — both are 45 mm wide and mount on 35 mm DIN rail. The terminal layout is the same. The difference is in the current setting range and the -ZW96 special version; verify the FLA range matches before substitution.

What is the width and depth of 3RV2021-1EA10-ZW96?

Width is 45 mm, depth is 97 mm, height is 97 mm. The 45 mm width fits a standard DIN-rail module slot.

MPN
3RV2021-1EA10-ZW96