The adjustable overload release covers 3.5 to 5 A, and the fixed magnetic short-circuit release fires at 65 A, so it clears a hard fault before the motor contributes significant let-through energy. Breaking capacity hits 100 kA at 240 V, 400 V, and 500 V AC, then drops to 4 kA at 690 V AC — the high 100 kA figure means it can be used downstream of a high-capacity transformer without requiring a current-limiting upstream breaker in most industrial panels. The spring-type terminals accept 2× (0.5 to 1.5 mm²) solid or ferruled stranded, and the S00 width of 45 mm lets it snap onto a 35 mm DIN rail per EN 60715, with zero side clearance needed for side-by-side mounting.

Siemens 3RV2011-1FA25-ZX95 SIRIUS Motor Protection Circuit B
Siemens SIRIUS 3RV2011-1FA25-ZX95, motor protection circuit breaker, size S00, CLASS 10, adjustable overload release 3.5...5 A, magnetic short-circuit release 65 A, spring-type terminals, 1 NO + 1 NC auxiliary contacts, 100 kA breaking capacity at 400 V AC.
Specifications
| Parameter | Value |
|---|---|
| Series | SIRIUS |
| Product designation | Circuit breaker |
| Parameter | Value |
|---|---|
| Rated operational current (Ie) | 5 A |
| Rated voltage | 20 ... 690 V |
| Parameter | Value |
|---|---|
| Instantaneous short-circuit trip current | 65 A |
| Trip class | CLASS 10 |
| Breaking capacity at 240 V (AC) | 100 kA |
| Breaking capacity at 400 V (AC) | 100 kA |
| Breaking capacity at 500 V (AC) | 100 kA |
| Breaking capacity at 690 V (AC) | 6 kA |
| Breaking capacity at 240 V | 100 kA |
| Breaking capacity at 690 V | 4 kA |
| Parameter | Value |
|---|---|
| Design Of The Product | For motor protection |
| Parameter | Value |
|---|---|
| At 400 V rated value | 100 kA |
| At 500 V rated value | 100 kA |
| Substance prohibitance | 10/01/2009 |
Product details
Frequently asked questions
Will the 3RV2011-1FA25-ZX95 fit in a panel designed for the 3RV2021-1FA15?
Yes — both are 45 mm wide and mount on 35 mm DIN rail. The S00 frame of this breaker is 97 mm deep versus the S0 frame's 97 mm depth, but the S00 is shorter in overall height (97 mm vs 97 mm, but the S0 has a taller body). The spring terminals on this variant may require different wiring preparation compared to the screw terminals on the 3RV2021-1FA15.