Siemens SIRIUS motor-protective circuit breaker, 3RV2023-4DA20, size S0, Trip Class 10, 11 kW at 400 V, phase failure detection, screw and snap-on mounting on 35 mm DIN rail.
| Parameter | Value |
|---|---|
| Series | SIRIUS |
| Product designation | Circuit breaker |
| Frame size | S0 |
| Parameter | Value |
|---|---|
| Rated operational current (Ie) | 25 A |
| Rated voltage | 20 ... 690 V |
| Rated voltage, AC-3 (max.) | 690 V |
| Rated frequency | 50 ... 60 Hz |
| Rated insulation voltage (Ui), pollution degree 3 | 690 V |
| Rated impulse withstand voltage (Uimp) | 6 kV |
| Number of poles | 3 |
| Power loss (AC, hot) | 10.5 W |
| Power loss, per pole (AC, hot) | 3.5 W |
| Parameter | Value |
|---|---|
| Overload release setting range | 18 ... 25 A |
| Instantaneous short-circuit trip current | 325 A |
| Trip class | CLASS 10 |
| Breaking capacity at 690 V (AC) | 4 kA |
| Breaking capacity at 690 V | 2 kA |
| Short-circuit trip type | magnetic |
| Overload release type | thermal |
| Short-circuit protection | Yes |
| Phase-failure detection | Yes |
| Ground-fault detection | No |
| Auxiliary switch extendable | Yes |
| Parameter | Value |
|---|---|
| Endurance, main contacts (typ.) | 100 000 |
| Endurance, auxiliary contacts (typ.) | 100 000 |
| Switching frequency, AC-3 (max.) | 15 1/h |
| Auxiliary CO (changeover) contacts | 0 |
| Parameter | Value |
|---|---|
| Main-circuit terminal type | spring-loaded terminals |
| Main-circuit connector arrangement | Top and bottom |
| Conductor cross-section, solid / stranded | 2x (1 ... 10 mm²) |
| Conductor cross-section, finely stranded with ferrule | 2x (1 ... 6 mm²) |
| Conductor range, AWG (main contacts) | 2x (18 ... 8) |
| Parameter | Value |
|---|---|
| Height | 119 mm |
| Width | 45 mm |
| Depth | 97 mm |
| Mounting method | screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 60715 |
| Mounting position | any |
| Parameter | Value |
|---|---|
| Operating temperature | -20 ... +60 °C |
| Storage temperature | -50 ... +80 °C |
| Transport temperature | -50 ... +80 °C |
| Relative humidity (operation) | 10 ... 95 % |
| Max. installation altitude | 2 000 m |
| Parameter | Value |
|---|---|
| Design Of The Product | For motor protection |
The Siemens 3RV2023-4DA20 is a SIRIUS motor-protective circuit breaker, size S0, designed for motor protection with Trip Class 10.
The 11 kW at 400 V rating covers most 15 hp motors at 460/480 V, while the 25 A at 480 V and 600 V provides a hard current ceiling. The back-up fuse coordination at 400 V calls for gG 63 A; at 500 V and 690 V, gG 50 A.
Mounting position is any. Clearance: 50 mm upwards and downwards, 30 mm at the side. Depth is 97 mm, width 45 mm, height 119 mm.
Trip Class 10, 11 kW at 400 V, phase failure detection, size S0. Back-up fuse: gG 63 A at 400 V, gG 50 A at 500 V and 690 V. Mounts on 35 mm DIN rail.
This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
Both are size S0 breakers with the same DIN rail footprint and terminal style, so the physical swap is straightforward. However, the 4DA20 has a different current rating and trip characteristic — verify the motor FLA and coordination study before substituting.
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