Skip to main content
Siemens 3RV2023-4CA20 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV2023-4CA20 SIRIUS Motor Circuit Breaker, CLASS 10

MPN3RV2023-4CA20
Active

Siemens SIRIUS motor protection circuit breaker, 3RV2023-4CA20, CLASS 10 trip class, frame size S0, 45 mm width, screw and snap-on 35 mm DIN rail mounting.

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

Specifications

3RV2023-4CA20 — Identification
ParameterValue
SeriesSIRIUS
Product designationCircuit breaker
Frame sizeS0
3RV2023-4CA20 — Electrical
ParameterValue
Rated operational current (Ie)22 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)10.5 W
Power loss, per pole (AC, hot)3.5 W
3RV2023-4CA20 — Protection & Tripping
ParameterValue
Overload release setting range16 ... 22 A
Instantaneous short-circuit trip current286 A
Trip classCLASS 10
Breaking capacity at 690 V (AC)4 kA
Breaking capacity at 690 V2 kA
Short-circuit trip typemagnetic
Overload release typethermal
Short-circuit protectionYes
Phase-failure detectionYes
Ground-fault detectionNo
Auxiliary switch extendableYes
3RV2023-4CA20 — 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
3RV2023-4CA20 — Connections
ParameterValue
Main-circuit terminal typespring-loaded terminals
Main-circuit connector arrangementTop and bottom
Conductor cross-section, solid / stranded2x (1 ... 10 mm²)
Conductor cross-section, finely stranded with ferrule2x (1 ... 6 mm²)
3RV2023-4CA20 — Mechanical
ParameterValue
Height119 mm
Width45 mm
Depth97 mm
Mounting methodscrew and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715
Mounting positionany
3RV2023-4CA20 — 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
3RV2023-4CA20 — Specifications
ParameterValue
Design Of The ProductFor motor protection

Product details

It trips on CLASS 10 curve.

Width is 45 mm. Depth is 97 mm, height 119 mm. Backup fuse coordination: at 400 V, the upstream gG fuse must be rated 63 A; at 500 V and 690 V, 50 A. That limits the let-through energy so the breaker's internal contacts survive a bolted fault. Breaking capacity at 690 V AC is 2 kA or 4 kA depending on the test condition — the lower figure is the conservative one for coordination studies. Motor horsepower ratings across common line voltages: 1.5 hp at 110/120 V, 7.5 hp at 200/208 V and 220/230 V, 3 hp at 230 V, 15 hp at 460/480 V, 20 hp at 575/600 V. At 480 V and 600 V the current rating is 22 A. Voltage range is 20 … 690 V. Switching frequency: 15 operations per hour maximum under AC-3 and AC-3e duty. Clearance requirements: 50 mm upwards and downwards, 30 mm at the sides — that's for arc flash venting and thermal dissipation. Mount in any orientation, but keep those gaps clear.

Frequently asked questions

What is the closest functional second-source for 3RV2023-4CA20?

The 3RV2023-4DA10 is the same frame S0, CLASS 10, 45 mm wide. It covers a higher adjustment range. Both drop into the same panel without rewiring.

Will 3RV2023-4CA20 drop into a panel specified for 3RV2023-4DA10?

Yes — same frame size S0, same 45 mm width, same DIN-rail mounting, same terminal layout. No rewiring needed.

MPN
3RV2023-4CA20