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Siemens 3RV6021-4EA15 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV6021-4EA15 SIRIUS Motor Protection CB, 32 A Class

MPN3RV6021-4EA15

Siemens SIRIUS motor protection circuit breaker, 3RV6021-4EA15, S0 frame, 32 A rated operational current, Class 10 trip, 690 V AC-3, screw terminals, DIN rail snap-on.

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

3RV6021-4EA15 — Identification
ParameterValue
SeriesSIRIUS
Product designationCircuit breaker
Frame sizeS0
3RV6021-4EA15 — Electrical
ParameterValue
Rated operational current (Ie)32 A
Rated voltage690 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
3RV6021-4EA15 — Protection & Tripping
ParameterValue
Overload release setting range27 ... 32 A
Instantaneous short-circuit trip current400 A
Trip classCLASS 10
Short-circuit trip typemagnetic
Overload release typethermal
Short-circuit protectionYes
3RV6021-4EA15 — 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)
3RV6021-4EA15 — Mechanical
ParameterValue
Height97 mm
Width45 mm
Depth96 mm
Mounting methodscrew and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715
Mounting positionany
3RV6021-4EA15 — Environmental
ParameterValue
Operating temperature-20 ... +60 °C
Transport temperature-50 ... +80 °C
Relative humidity (operation)10 ... 95 %
Max. installation altitude2 000 m
3RV6021-4EA15 — Specifications
ParameterValue
Design Of The Productfor motor protection

Product details

The Siemens 3RV6021-4EA15 is a SIRIUS motor protection circuit breaker in the S0 frame size, designed to protect three-phase motors up to 32 A at 690 V AC-3 duty.

That 50 mm vertical gap is for the arc-chute exhaust; don't cram it into a tight enclosure without that headroom. Any mounting position works, and the part is rated for -20 to +60 °C operating ambient. If it's in a hot cabinet next to a drive, that 11 W typical power loss adds up — keep ventilation in mind when grouping several units.

Wiring and connections

Main circuit terminals are screw-type, accepting 2 × (0.5…1.5 mm²) solid/stranded or 2 × (0.75…2.5 mm²) finely stranded with ferrules. AWG equivalents: 2 × (16…12) or 2 × (14…8). Torque to 2…2.5 N·m. Auxiliary contacts use the same screw-terminal style with slightly smaller wire ranges (2 × 20…16 AWG or 2 × 18…14 AWG). The auxiliary switch is transverse-mounted, so check your panel layout for actuator clearance.

Frequently asked questions

What are the key ratings for 3RV6021-4EA15?

Rated operational current 32 A at AC-3, maximum operating voltage 690 V, frequency 50…60 Hz, Class 10 thermal trip, S0 frame size, screw terminals, DIN rail mount.

Will 3RV6021-4EA15 drop into a panel specified for 3RV6021-4DA10?

Both are S0 frame breakers with the same mounting footprint (45 mm wide, snap-on DIN rail) and screw terminals. The 4EA15 is rated 32 A; the 4DA10 is a lower-current variant. If the panel was built for the 4DA10's current rating and wiring, the 4EA15 will physically fit without rewiring, but verify the upstream protection and motor FLA match the 32 A rating.

Where can I buy 3RV6021-4EA15?

This part is sourced to order against an RFQ through independent industrial automation distribution. Submit a request for current availability and pricing.

MPN
3RV6021-4EA15