The adjustable overload release covers 0.35 to 0.5 A, so this breaker is sized for the smallest motor loads — fractional-horsepower pumps, fans, or conveyor drives drawing under half an amp. The magnetic short-circuit trip responds at 6.5 A (fixed), giving a clean selectivity window above the start-up inrush. Rated operational current is 0.5 A at 400 V, with a switching capacity of 100 kA at 400 V AC — that SCCR rating lets it interrupt a hard fault without cascading upstream, even on high-capacity distribution. The S00 footprint (45 mm wide) saves panel space — three poles in a single module width.

3RV1011-0FA10-ZI45 SIRIUS Motor Protection Breaker, CLASS 10
Siemens SIRIUS 3RV1011-0FA10-ZI45 motor protection circuit breaker, size S00, CLASS 10, adjustable overload release 0.35–0.5 A, screw terminals, snap-on DIN rail mounting.
Specifications
| Parameter | Value |
|---|---|
| Series | SIRIUS |
| Product designation | Circuit breaker |
| Frame size | S00 |
| Parameter | Value |
|---|---|
| Power loss (AC, hot) | 5.5 W |
| Power loss, per pole (AC, hot) | 1.8 W |
| Parameter | Value |
|---|---|
| Trip class | CLASS 10 |
| Parameter | Value |
|---|---|
| Main-circuit terminal type | screw-type terminals |
| Main-circuit connector arrangement | Top and bottom |
| Parameter | Value |
|---|---|
| Mounting position | any |
| Parameter | Value |
|---|---|
| Design Of The Product | For motor protection |
| Parameter | Value |
|---|---|
| Mounting | screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 60715 |
| At 400 V rated value | 120 W |
| Operating current rated value | 0.5 A |
| Adjustable pick-up value current of the current-dependent overload release | 0.35 ... 0.5 A |
Product details
Frequently asked questions
What is the trip class of this breaker?
CLASS 10, meaning the overload element trips within 10 seconds at 7.2× the set current — suitable for standard motor protection.
Where can I buy 3RV1011-0FA10-ZI45 and get a price?
This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm offer.
Will 3RV1011-0FA10-ZI45 drop into a panel specified around 3RV1011-0GA10?
Yes — both are S00 frame, same DIN-rail footprint (45 mm wide, 75 mm depth), same screw-terminal layout, and same CLASS 10 trip class. The difference is the overload range: 0.35–0.5 A here vs 0.45–0.63 A on the 0GA10. If your motor FLA falls within 0.35–0.5 A, it is a direct mechanical and wiring swap.