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Siemens 3RV2031-4DA15 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV2031-4DA15 SIRIUS Motor Protection Circuit Breake

MPN3RV2031-4DA15
Active

Siemens SIRIUS 3RV2031-4DA15 motor protection circuit breaker, CLASS 10 trip class, 30 kA breaking capacity at 400 V, screw and snap-on mounting onto 35 mm DIN rail.

Siemens 3RV2031-4DA15 datasheet (PDF)
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

3RV2031-4DA15 — Identification
ParameterValue
SeriesSIRIUS
Product designationCircuit breaker
Frame sizeS2
3RV2031-4DA15 — Electrical
ParameterValue
Rated operational current (Ie)25 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
3RV2031-4DA15 — Protection & Tripping
ParameterValue
Overload release setting range18 ... 25 A
Instantaneous short-circuit trip current325 A
Trip classCLASS 10
Breaking capacity at 240 V (AC)100 kA
Breaking capacity at 400 V (AC)65 kA
Breaking capacity at 500 V (AC)12 kA
Breaking capacity at 690 V (AC)5 kA
Breaking capacity at 240 V100 kA
Breaking capacity at 690 V3 kA
Short-circuit trip typemagnetic
Overload release typethermal
Short-circuit protectionYes
Phase-failure detectionYes
Ground-fault detectionNo
Auxiliary switch extendableYes
3RV2031-4DA15 — Endurance & Switching
ParameterValue
Endurance, main contacts (typ.)50 000
Endurance, auxiliary contacts (typ.)50 000
Switching frequency, AC-3 (max.)15 1/h
3RV2031-4DA15 — 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 ... 3), 1x (18 ... 2)
3RV2031-4DA15 — 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
3RV2031-4DA15 — 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
3RV2031-4DA15 — Specifications
ParameterValue
Design Of The ProductFor motor protection

Product details

The Siemens SIRIUS 3RV2031-4DA15 is a motor protection circuit breaker designed for screw and snap-on mounting onto 35 mm DIN rail per DIN EN 60715. It's rated CLASS 10 trip class, meaning it will trip within 10 seconds at 7.2× the thermal setting — fast enough to protect standard induction motors during a locked-rotor event without nuisance tripping on normal starts.

Breaking capacity and voltage range

Rated operating voltage spans 20 to 690 V AC, covering low-voltage motor circuits from control transformers up to 690 V line supplies. The 55 mm width and 149 mm depth fit standard motor starter cubbies; the M6 main contact screws accept 2x (0.5 to 2.5 mm²) conductors.

Frequently asked questions

Where can I buy 3RV2031-4DA15 and what is the lead time?

Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock count or lead-time figure is published here because the supply picture changes daily.

Will 3RV2031-4DA15 drop into a panel that was specified around 3RV2021-4NA25 without rewiring?

Both are SIRIUS motor protection breakers on the same 35 mm DIN rail footprint with M6 main contact screws, so the mechanical fit and conductor termination are identical. The deciding difference is the breaking capacity and trip class — verify your fault-current study and motor start profile against the 3RV2031-4DA15's 30 kA at 400 V and CLASS 10 curve before swapping.

What compliance documentation does Siemens provide for 3RV2031-4DA15?

As a standard SIRIUS catalog product, Siemens publishes a declaration of conformity (CE/UKCA), UL/CSA recognition, and RoHS/REACH compliance statements. The specific certificate numbers and revision levels are on the manufacturer's support portal under this order code.

MPN
3RV2031-4DA15