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Siemens 3RV2342-4HC10 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV2342-4HC10 SIRIUS Circuit Breaker, 50 kA at 400 V

MPN3RV2342-4HC10
Active

Siemens SIRIUS circuit breaker, 3RV2342-4HC10, for starter combinations, 50 kA breaking capacity at 400 V AC, screw-type terminals, 70 mm width, current production.

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

3RV2342-4HC10 — Identification
ParameterValue
SeriesSIRIUS
Product designationCircuit breaker
Frame sizeS3
3RV2342-4HC10 — Electrical
ParameterValue
Rated operational current (Ie)50 A
Rated voltage20 ... 690 V
Rated voltage, AC-3 (max.)690 V
Rated frequency50 ... 60 Hz
Rated insulation voltage (Ui), pollution degree 31 000 V
Rated impulse withstand voltage (Uimp)8 kV
Number of poles3
Power loss (AC, hot)27 W
Power loss, per pole (AC, hot)9 W
3RV2342-4HC10 — Protection & Tripping
ParameterValue
Instantaneous short-circuit trip current650 A
Breaking capacity at 240 V (AC)100 kA
Breaking capacity at 400 V (AC)100 kA
Breaking capacity at 500 V (AC)15 kA
Breaking capacity at 690 V (AC)10 kA
Breaking capacity at 240 V100 kA
Breaking capacity at 690 V5 kA
Short-circuit trip typemagnetic
Overload release typethermal
Short-circuit protectionYes
Phase-failure detectionNo
Ground-fault detectionNo
Auxiliary switch extendableYes
3RV2342-4HC10 — Endurance & Switching
ParameterValue
Endurance, main contacts (typ.)25 000
Endurance, auxiliary contacts (typ.)25 000
Switching frequency, AC-3 (max.)15 1/h
3RV2342-4HC10 — Connections
ParameterValue
Main-circuit terminal typescrew-type terminals
Main-circuit connector arrangementTop and bottom
Conductor cross-section, solid / stranded2x (2,5 ... 50 mm²), 1x (10 ... 70 mm²)
Conductor cross-section, finely stranded with ferrule2x (2.5 ... 35 mm²), 1x (2.5 ... 50 mm²)
3RV2342-4HC10 — Mechanical
ParameterValue
Height165 mm
Width70 mm
Depth176 mm
Mounting methodscrew and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715
Mounting positionany
3RV2342-4HC10 — 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
3RV2342-4HC10 — Specifications
ParameterValue
Design Of The ProductFor starter combinations

Product details

What this SIRIUS breaker does in a panel

At 240 V AC it handles 100 kA. For a 480 V line, it's rated 50 A continuous. That gives you selectivity headroom in a typical 400 V MCC or distribution panel. Terminals are screw-type, accepting 2x (2.5 to 16 mm²) solid or stranded on the main circuit, and up to 70 mm² on a single conductor.

The 3RV2021-4NA25 is a smaller-frame SIRIUS breaker (45 mm wide vs 70 mm) with lower breaking capacity — typically 25 kA at 400 V. It won't drop into a panel wired for the 3RV2342-4HC10 without checking terminal lug sizes and fault-current coordination. The 3RV2342-4HC10 handles heavier cable (up to 70 mm² single) and higher prospective fault levels, so it's the right choice where SCCR requirements push above 25 kA.

Frequently asked questions

How do I get current pricing and availability for 3RV2342-4HC10?

Submit an RFQ through this listing. Availability and current pricing are confirmed at quote time through independent distribution channels.

What is 3RV2342-4HC10's listed depth?

The depth is 176 mm, with 70 mm width and 165 mm height. Clearance required: 150 mm above and below, 30 mm at the sides, zero forward or backward.

What terminal capacity does 3RV2342-4HC10 accept?

Screw-type terminals accept 2x (2.5 to 16 mm²) solid or stranded on the main circuit, and up to 70 mm² on a single conductor.

Will 3RV2342-4HC10 drop into a panel specified around 3RV2021-4NA25 without rewiring?

Not directly — the 3RV2342-4HC10 is 70 mm wide versus 45 mm for the 3RV2021-4NA25, and its terminal capacity goes up to 70 mm² single conductor. Check DIN rail space, lug sizes, and fault-current coordination before substituting.

MPN
3RV2342-4HC10