The Siemens 3RV1011-1KA10 is a SIRIUS motor protection circuit breaker designed for Class 10 trip response, meaning it will disconnect within 10 seconds at 7.2× the thermal setting — a standard match for standard AC induction motors starting across the line. It carries a 100 kA breaking capacity at 240 V, which drops to 13 kA at 400 V and 2 kA at 690 V, so the available fault current at the panel must be checked against the voltage-specific rating. The unit includes phase failure detection, so a lost phase on a three-phase motor will trip the breaker rather than letting the motor single-phase and overheat. The screw-type terminals on the main circuit accept 2×(0.5…1.5 mm²) or 2×(0.75…2.5 mm²) solid or stranded.
Siemens 3RV1011-1KA10 SIRIUS Motor Protection Circuit Breake
MPN3RV1011-1KA10
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Siemens SIRIUS 3RV1011-1KA10 motor protection circuit breaker, Class 10 trip, 45 mm wide, screw terminals, 100 kA breaking capacity at 240 V.
$41.91Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Series | SIRIUS |
| Product designation | Circuit breaker |
| Frame size | S00 |
| Parameter | Value |
|---|---|
| Rated operational current (Ie) | 12 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) | 9.25 W |
| Power loss, per pole (AC, hot) | 3.1 W |
| Parameter | Value |
|---|---|
| Overload release setting range | 9 ... 12.5 A |
| Instantaneous short-circuit trip current | 156 A |
| Trip class | CLASS 10 |
| Breaking capacity at 240 V (AC) | 100 kA |
| Breaking capacity at 400 V (AC) | 50 kA |
| Breaking capacity at 500 V (AC) | 3 kA |
| Breaking capacity at 690 V (AC) | 2 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 (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²) |
| Conductor cross-section, finely stranded with ferrule | 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²) |
| Parameter | Value |
|---|---|
| Height | 90 mm |
| Width | 45 mm |
| Depth | 75 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 |
Product details
Frequently asked questions
What is the breaking capacity of 3RV1011-1KA10 at 400 V?
At 400 V the breaking capacity is 13 kA. At 240 V it is 100 kA, at 500 V it is 3 kA, and at 690 V it is 2 kA.
Will 3RV1011-1KA10 drop into a panel specified for 3RV1011-1HA10?
Yes, both share the same 45 mm width, screw terminals, DIN rail mount, and Class 10 trip class. The internal thermal setting range differs, so confirm the setting matches your motor FLA before installing.
Where can I buy 3RV1011-1KA10?
This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
MPN
3RV1011-1KA10