Siemens 3RV20211BA10 Circuit Breaker
The 3RV20211BA10 is a size S0 motor starter protector from Siemens' 3RV2 series, designed for DIN rail mounting in industrial control panels. The device carries ATEX, CCC, CSA, EAC, IECEx, and UL certifications, confirming suitability for hazardous-area and general industrial applications.
Technical Specifications
| Parameter | Value |
|---|---|
| Current Rating | 2 A |
| Adjustment Range | 1.4–2 A |
| Number of Poles | 3 |
| Breaker Type | Thermal |
| Actuator Type | Rotary |
| Mounting | DIN Rail |
| Illumination | None |
| Package | Bulk |
Certifications
The 3RV20211BA10 is approved by ATEX, CCC, CSA, EAC, IECEx, and UL. Note that CE and VDE approvals—present on several siblings in this family—are not listed for this specific variant. Panels targeting European Union or German-regulatory markets should verify whether CE marking is required despite the bulk pack status; the alternates 3RV20211BA15, 3RV20211BA20, and 3RV20211BA25 include CE and VDE in their approval strings.
Thermal Protection Characteristics
As a thermal-only breaker (not thermal-magnetic), the 3RV20211BA10 provides inverse-time overload protection suited to motor heating profiles. The 1.4–2 A adjustable setting allows in-field calibration to the connected load. Spring-terminal alternatives (3RV20211BA20, 3RV20211BA25) and versions with auxiliary contacts (3RV20211BA15, 3RV20211BA25) share the same thermal characteristics but offer different termination and signaling options.
Compare: 3RV20211BA10 vs Family Members
The reader must qualify all listed alternates against the specific application requirements before selection.
| Spec | 3RV20211BA10 | 3RV20211BA15 | 3RV20211BA20 | 3RV20211BA25 |
|---|---|---|---|---|
| Current Rating | 2A | 2A | 2A | 2A |
| Breaker Type | Thermal | Thermal Magnetic | Thermal Magnetic | Thermal Magnetic |
| Actuator | Rotary | Rotary | Rotary | Rotary |
| Mount | DIN Rail | DIN Rail | DIN Rail | DIN Rail |
| Poles | 3 | 3 | 3 | 3 |
| Package | Bulk | Box | Box | Box |
| Similarity | — | 1.0 | 1.0 | 1.0 |
3RV20211BA15 shares the screw-terminal form factor and 2A rating; it adds a CE/VDE approval string and includes one normally-open and one normally-closed auxiliary contact, enabling status signaling in the control circuit.
3RV20211BA20 substitutes spring-cage terminals for screws while maintaining 2A and 3-pole; spring termination suits vibration-prone environments or applications requiring tool-free conductor replacement.
3RV20211BA25 combines spring terminals with auxiliary contacts, offering both vibration resilience and control-circuit feedback in a single unit; CE and VDE approvals are present.