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Siemens 3RV2032-4TA15 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV2032-4TA15 SIRIUS Motor Protection Circuit Breake

MPN3RV2032-4TA15
Active

Siemens SIRIUS circuit breaker 3RV2032-4TA15, for motor protection, CLASS 10 trip, screw and snap-on mounting onto 35 mm DIN rail, 50 kA at 400 V.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RV2032-4TA15 — Identification
ParameterValue
SeriesSIRIUS
Product designationCircuit breaker
Frame sizeS2
3RV2032-4TA15 — Electrical
ParameterValue
Rated operational current (Ie)17 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)14.5 W
Power loss, per pole (AC, hot)4.8 W
3RV2032-4TA15 — Protection & Tripping
ParameterValue
Overload release setting range12 ... 17 A
Instantaneous short-circuit trip current260 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)18 kA
Breaking capacity at 690 V (AC)8 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 detectionYes
Ground-fault detectionNo
Auxiliary switch extendableYes
3RV2032-4TA15 — Endurance & Switching
ParameterValue
Endurance, main contacts (typ.)50 000
Endurance, auxiliary contacts (typ.)50 000
Switching frequency, AC-3 (max.)15 1/h
3RV2032-4TA15 — 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)
Conductor range, AWG (main contacts)2x (18 ... 2), 1x (18 ... 1)
3RV2032-4TA15 — Mechanical
ParameterValue
Height140 mm
Width55 mm
Depth149 mm
Mounting methodscrew and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715
Mounting positionany
3RV2032-4TA15 — 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
3RV2032-4TA15 — Specifications
ParameterValue
Design Of The ProductFor motor protection

Product details

It's designed for motor protection, not general distribution, so the trip curve is tuned to handle inrush without nuisance tripping. Ground fault detection is not included — that's a separate module if your installation requires it. No special adapter needed.

Breaking capacity and trip class — what the numbers mean

For context, most industrial panels downstream of a 1000 kVA transformer see available fault currents in the 25–40 kA range, so 50 kA gives you headroom. That's the standard for standard-duty motor starting — it lets the motor accelerate through inrush but catches a stalled rotor fast enough to avoid winding damage. If your application uses frequent starts or high-inertia loads, you might want Class 10A or 20, but for general-purpose pumps, fans, and compressors, Class 10 is the default. No derating needed for typical plant-floor conditions.

Integration notes

Terminals accept 2×(0.5–1.5 mm²) or 2×(0.75–2.5 mm²) solid or stranded wire. Main contact terminals are M6 — that's a common size for motor circuit breakers in this class, so standard ring lugs fit. Depth is 149 mm, width 55 mm, height 140 mm. That's tighter than some competitors — check your enclosure layout before committing. Maximum switching frequency in AC-3 duty is 15 operations per hour. That's fine for normal process control — a pump cycling on level, a conveyor starting once per minute — but not for rapid jogging or reversing service. If you need high-frequency starting, look at the SIRIUS 3RV2 with auxiliary contact blocks rated for higher mechanical endurance.

Frequently asked questions

What is the breaking capacity of 3RV2032-4TA15 at 400 V?

50 kA at 400 V, with 5 kA at 690 V. That covers most motor branch circuits in industrial panels.

Does 3RV2032-4TA15 include phase failure detection?

Yes, phase failure detection is built in. Ground fault detection is not included — that requires a separate module.

Where can I buy 3RV2032-4TA15 and how is it quoted?

Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

Will 3RV2032-4TA15 drop into a panel specified around a different SIRIUS breaker?

Mounting is standard 35 mm DIN rail per DIN EN 60715, so it fits the same rail. But check the clearance requirements: 50 mm above and below, 10 mm at the sides. Depth is 149 mm. If the previous breaker was a different frame size, the panel depth and side clearance may need verification.

MPN
3RV2032-4TA15