Siemens SIRIUS 3RV2021-4BA10 motor protection circuit breaker, Class 10, 45 mm wide, 97 mm deep, screw terminals, 25 kA at 400 V.
| Parameter | Value |
|---|---|
| Series | SIRIUS |
| Product designation | Circuit breaker |
| Frame size | S0 |
| Parameter | Value |
|---|---|
| Rated operational current (Ie) | 20 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 | 13 ... 20 A |
| Instantaneous short-circuit trip current | 260 A |
| Trip class | CLASS 10 |
| Breaking capacity at 240 V (AC) | 100 kA |
| Breaking capacity at 400 V (AC) | 55 kA |
| Breaking capacity at 500 V (AC) | 10 kA |
| Breaking capacity at 690 V (AC) | 4 kA |
| Breaking capacity at 240 V | 100 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 | screw-type terminals |
| Main-circuit connector arrangement | Top and bottom |
| Conductor cross-section, solid / stranded | 2x (1 ... 2.5 mm²), 2x (2.5 ... 10 mm²) |
| Conductor cross-section, finely stranded with ferrule | 2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²), 1x 10 mm² |
| Conductor range, AWG (main contacts) | 2x (16 ... 12), 2x (14 ... 8) |
| Parameter | Value |
|---|---|
| Height | 97 mm |
| Width | 45 mm |
| Depth | 97 mm |
| Mounting method | screw and snap-on mounting onto 35 mm DIN 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 |
It is a current-production part. Breaking capacity at 400 V is 25 kA; at 480 V it's rated 20 A continuous, and at 690 V it still holds 2 kA. This covers most industrial panel SCCR requirements up to 480 V.
Width is 45 mm, depth 97 mm, height 97 mm. Any mounting position is allowed. Main circuit terminals are M4 screw-type, accepting 2×(1–2.5 mm²) or 2×(2.5–10 mm²) solid or stranded.
Trip Class 10, breaking capacity 25 kA at 400 V, 5 kA at 500 V, 2 kA at 690 V. Continuous current at 480 V is 20 A, at 600 V is 20 A. Phase failure detection is included.
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