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Siemens 3RV2742-5BD10 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV2742-5BD10 SIRIUS Circuit Breaker, 15 A, 100 kA

MPN3RV2742-5BD10
Active

Siemens SIRIUS 3RV2742-5BD10 S3 circuit breaker, 15 A rated current, thermal-magnetic, 100 kA breaking capacity at 240 V AC, UL 489/CSA C22.2 No.5.

$154.94Ref. price · indicative, final on quote
Siemens 3RV2742-5BD10 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RV2742-5BD10 — Identification
ParameterValue
SeriesSIRIUS
Product designationCircuit breaker
Frame sizeS3
3RV2742-5BD10 — Electrical
ParameterValue
Rated operational current (Ie)15 A
Rated voltage20 ... 600 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)14 W
Power loss, per pole (AC, hot)4.7 W
3RV2742-5BD10 — Protection & Tripping
ParameterValue
Instantaneous short-circuit trip current225 A
Breaking capacity at 240 V (AC)100 kA
Breaking capacity at 400 V (AC)100 kA
Breaking capacity at 240 V100 kA
Short-circuit trip typemagnetic
Overload release typethermal
Short-circuit protectionYes
Phase-failure detectionNo
Ground-fault detectionNo
Auxiliary switch extendableYes
3RV2742-5BD10 — Endurance & Switching
ParameterValue
Endurance, main contacts (typ.)25 000
Endurance, auxiliary contacts (typ.)25 000
3RV2742-5BD10 — 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)
Conductor range, AWG (main contacts)14 solid - only front clamping point
3RV2742-5BD10 — Mechanical
ParameterValue
Height170 mm
Width70 mm
Depth176 mm
Mounting methodscrew and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715
Mounting positionany
3RV2742-5BD10 — 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
3RV2742-5BD10 — Specifications
ParameterValue
Design Of The ProductFor system protection according to UL 489/CSA C22.2 No. 5

Product details

Siemens SIRIUS 3RV2742-5BD10 S3 circuit breaker, rated 15 A, breaking capacity 100 kA and 50 kA. UL 489 listed, mounts on 35 mm DIN rail in any position, accepts solid 2x (2.5–16 mm²) or stranded 1x (10–70 mm²).

Panel integration

M8 main contact bolts tightened with 4 mm hex socket. Humidity 10–95% non-condensing.

Production lifecycle stage is current (active). RoHS compliance effective 2017-03-01. This is a dedicated UL 489 breaker; no functional cross to the listed PEP MPNs (6AG1516-3AN00-2AB0 etc.) — those are PLC CPUs, not protection devices. Auxiliary switch slot available for add-on contacts. If you're running a BOM line or sitting on a pallet lot, drop an RFQ and we'll get you a number.

Frequently asked questions

What wire sizes does it accept?

Solid wires: 2x (2.5–16 mm²). Stranded wires: 2x (2.5–50 mm²) or 1x (10–70 mm²) based on terminal capacity.

What compliance documentation does this breaker have?

It is designed for system protection per UL 489 and CSA C22.2 No.5. RoHS compliance effective March 1, 2017.

MPN
3RV2742-5BD10