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Siemens 3RV2411-0KA20 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV2411-0KA20 SIRIUS Circuit Breaker, Transformer Pr

MPN3RV2411-0KA20
Active

Siemens SIRIUS circuit breaker, 3RV2411-0KA20, for transformer protection, 100 kA breaking capacity at 400 V, Class 10 trip, screw and snap-on mounting onto 35 mm DIN rail.

$36.83Ref. 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

3RV2411-0KA20 — Identification
ParameterValue
SeriesSIRIUS
Product designationCircuit breaker
Frame sizeS00
3RV2411-0KA20 — Electrical
ParameterValue
Rated operational current (Ie)1.25 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)7.25 W
Power loss, per pole (AC, hot)2.4 W
3RV2411-0KA20 — Protection & Tripping
ParameterValue
Overload release setting range0.9 ... 1.25 A
Instantaneous short-circuit trip current26 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)100 kA
Breaking capacity at 690 V (AC)100 kA
Breaking capacity at 240 V100 kA
Breaking capacity at 690 V100 kA
Short-circuit trip typemagnetic
Overload release typethermal
Short-circuit protectionYes
Phase-failure detectionYes
Ground-fault detectionNo
Auxiliary switch extendableYes
3RV2411-0KA20 — Endurance & Switching
ParameterValue
Endurance, main contacts (typ.)100 000
Endurance, auxiliary contacts (typ.)100 000
Switching frequency, AC-3 (max.)15 1/h
Auxiliary CO (changeover) contacts0
3RV2411-0KA20 — Connections
ParameterValue
Main-circuit terminal typespring-loaded terminals
Main-circuit connector arrangementTop and bottom
Conductor cross-section, solid / stranded2x (0,5 ... 4 mm²)
Conductor cross-section, finely stranded with ferrule2x (0.5 ... 2.5 mm²)
Conductor range, AWG (main contacts)2x (20 ... 12)
3RV2411-0KA20 — Mechanical
ParameterValue
Height106 mm
Width45 mm
Depth97 mm
Mounting methodscrew and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715
Mounting positionany
3RV2411-0KA20 — 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
3RV2411-0KA20 — Specifications
ParameterValue
Design Of The ProductFor transformer protection

Product details

Product identity and design intent

The Siemens 3RV2411-0KA20 is a SIRIUS circuit breaker explicitly designed for transformer protection — not a general-purpose motor-protective breaker. That means its trip curve and ratings are tailored to handle inrush currents typical of transformers while still clearing faults.

Mounting and footprint

No forced-air clearance needed; any mounting position works. Side clearance to adjacent devices is 30 mm; top and bottom clearance 50 mm. No forward clearance required.

Breaking capacity and fault handling

Electrical ratings and wire termination

Rated operational voltage covers 20 to 690 V. At 230 V, the motor power rating is 0.2 kW; at 460/480 V it's 1 hp; at 575/600 V it's 0.5 hp. Switching frequency is limited to 15 operations per hour at AC-3 maximum — fine for transformer switching, not for frequent motor starts.

Frequently asked questions

When sourcing 3RV2411-0KA20, what's the closest functional second-source — 3RV2011-0BA20?

The 3RV2011-0BA20 is a different design: it is a motor-protective breaker, not a transformer-protection breaker. The 3RV2411-0KA20 is specifically designed for transformer inrush and its trip curve differs. Panel drop-in is not guaranteed — verify the mounting footprint and terminal layout against your existing cutout.

What is 3RV2411-0KA20's listed depth (97 mm) on this component line?

The depth is 97 mm. Width is 45 mm, height 106 mm.

MPN
3RV2411-0KA20