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Siemens 3RV1021-4AA10 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV1021-4AA10 SIRIUS Motor Protection Circuit Breake

MPN3RV1021-4AA10

Siemens SIRIUS 3RV1021-4AA10, motor protection circuit breaker, 16 A rated continuous current, Class 10 trip, 50 kA breaking capacity at 400 V AC, screw terminals, IP20 front, DIN rail mount.

$84.01Ref. price · indicative, final on quote
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

3RV1021-4AA10 — Identification
ParameterValue
SeriesSIRIUS
Product designationcircuit breaker
3RV1021-4AA10 — 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)9.25 W
Power loss, per pole (AC, hot)3.1 W
3RV1021-4AA10 — Protection & Tripping
ParameterValue
Overload release setting range11 ... 16 A
Trip classCLASS 10
Breaking capacity at 240 V (AC)100 kA
Breaking capacity at 400 V (AC)50 kA
Breaking capacity at 500 V (AC)10 kA
Breaking capacity at 690 V (AC)4 kA
Phase-failure detectionYes
Ground-fault detectionNo
Auxiliary switch extendableYes
3RV1021-4AA10 — Endurance & Switching
ParameterValue
Auxiliary CO (changeover) contacts0
3RV1021-4AA10 — Connections
ParameterValue
Main-circuit terminal typescrew-type terminals
Main-circuit connector arrangementfront side
Conductor cross-section, finely stranded with ferrule2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²)
Conductor range, AWG (main contacts)2x (14 ... 10)
3RV1021-4AA10 — 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
3RV1021-4AA10 — Environmental
ParameterValue
Operating temperature-20 ... +60 °C
Storage temperature-50 ... +80 °C
Transport temperature-50 ... +80 °C
Max. installation altitude2 000 m
3RV1021-4AA10 — Specifications
ParameterValue
Design Of The Productfor motor protection

Product details

The Siemens 3RV1021-4AA10 is a SIRIUS motor protection circuit breaker rated for 16 A continuous current with a Class 10 trip characteristic, making it a direct fit for protecting standard 7.5 kW motors at 400 V AC. It includes phase failure detection as standard, which is critical for preventing single-phasing damage on three-phase motor loads in conveyor, pump, and fan applications.

Breaking capacity and fault clearance

The 3RV1021-4AA10 delivers 100 kA breaking capacity at 240 V AC, 50 kA at 400 V AC, 10 kA at 500 V AC, and 4 kA at 690 V AC.

Any mounting position is permitted.

Screw-type terminals on both main and auxiliary circuits accept solid or stranded conductors: 2x (1... 2.5 mm²) and 2x (2.5... 6 mm²), or AWG 14–10. The dual-terminal design per pole allows daisy-chaining power through without extra junction blocks — saves a terminal row in the gland plate layout.

Frequently asked questions

How do I get current pricing and availability for 3RV1021-4AA10?

Submit an RFQ through this listing. Pricing and stock levels are confirmed at quote time through our independent distribution network.

Will 3RV1021-4AA10 drop into a panel specified around 3RV1011-1HA10 without rewiring?

The 3RV1021-4AA10 has a 45 mm width versus the narrower 3RV1011-1HA10 frame. It will mount on the same 35 mm DIN rail but occupies more horizontal space, so verify adjacent device spacing and enclosure fill factor before swapping.

What compliance documentation does this brand provide for 3RV1021-4AA10?

RoHS compliance is confirmed with a substance prohibition date of 01.05.2012. The product carries the SIRIUS brand and is designed to IEC/EN 60947 standards. Specific UL/CSA documentation should be requested at RFQ time.

MPN
3RV1021-4AA10