Siemens 3RV20110JA10 Motor Starter Protector
Product Family and MPN Decode
The 3RV20110JA10 belongs to the Siemens 3RV2 series S00 frame size motor starter protectors. The MPN prefix breaks down as follows: 3RV20 designates the SIRIUS 3RV2 family, 110 indicates the S00 frame with a 4–5 A busbar rating, J signals the 0.7–1.0 A adjustable thermal overload band, and the trailing A10 specifies the basic version with screw terminals and no auxiliary contacts. This is a bulk-packaged, 3-pole thermal-only device intended for motor branch protection in DIN rail–mounted distribution.
Parameter Summary
| Specification | Value |
|---|---|
| Part Number | 3RV20110JA10 |
| Brand | Siemens |
| Breaker Type | Thermal |
| Current Rating | 1 A (adjustable 0.7–1.0 A) |
| Number of Poles | 3 |
| Mounting | DIN Rail |
| Actuator | Rotary |
| Illumination | None |
| Encapsulation / Package | Bulk |
| Approvals | ATEX, CCC, CSA, EAC, IECEx, UL |
| Product Status | Active |
Catalog Comparison (Top Similar Entries)
| MPN | Current Range | Breaker Type | Termination | Package | Aux. Contacts |
|---|---|---|---|---|---|
| 3RV20110JA10 | 0.7–1 A | Thermal | Screw | Bulk | None |
| 3RV20110JA15 | 0.7–1 A | Thermal | Screw | Bulk | 1NO + 1NC |
| 3RV20110JA20 | 0.7–1 A | Thermal | Spring | Bulk | None |
| 3RV20110JA40 | 0.7–1 A | Thermal Magnetic | Ring Lug | Box | None |
All listed parts share identical electrical ratings (1 A, 3-pole, DIN rail, rotary actuator) and carry the same agency approvals. The 3RV20110JA15 variant adds a built-in 1NO + 1NC auxiliary contact block — useful when separate status signaling or control circuit feedback is required without adding a separate aux module. The 3RV20110JA40 upgrades the thermal element to thermal-magnetic and substitutes ring-lug terminals with box packaging; this variant also lists CE and VDE in its approval stack.
The remaining alternates (3RV20110EA10, BA10, GA10, AA10) target progressively lower current bands (400 mA down to 160 mA) but otherwise match the same mechanical form factor and certifications.
Selection Notes
- The 3RV20110JA10 provides screw-type line and load terminations in bulk packaging. Spring-cage termination variants (3RV20110JA20) are cataloged separately and may offer faster field wiring in high-volume panel builds.
- Auxiliary contact functionality is absent in the base version. If auxiliary signaling is needed, the 3RV20110JA15 integrates one normally-open and one normally-closed contact; alternatively, a side-mounted aux block may be added where the mechanical profile permits.
- The thermal-only tripping mechanism is suitable for motor protection coordination where instantaneous magnetic tripping is handled upstream (e.g., a main magnetic circuit breaker or upstream motor protection device).