Siemens 3RV20314EA10 Motor Starter Protector
Catalog Identity and Core Function
The Siemens 3RV20314EA10 is a three-pole, DIN rail-mounted motor starter protector (MSP) in the S2 frame size, rated for 32 A continuous current with a Class 10 thermal tripping characteristic. This page focuses on 3RV20314EA10; in-catalog peers share the same frame family but differ in trip class, current setting range, and auxiliary configuration.
Concrete Selection Trade-offs
- Class 10 vs. Class 20 trip characteristic — 3RV20314EA10 trips at approximately 7–10× full-load current within 10 seconds, suitable for motor feeders that do not generate high locked-rotor inrush. The Class 20 variant (e.g., 3RV20314EB10) tolerates longer acceleration periods before tripping.
- Thermal-only vs. thermal-magnetic breaker type — The seed spec lists "Thermal" only; several in-catalog variants (3RV20314EA15, 3RV20314EB15, 3RV20314EA150BA0) are classified "Thermal Magnetic" and may provide shorter instantaneous trip on high short-circuit currents.
- Bulk vs. box packaging — 3RV20314EA10 ships in bulk encapsulation; alternate MPNs with "Box" packaging may suit unit-of-one procurement or controlled inventory environments.
- Auxiliary contact configuration — The seed MPN carries no listed auxiliary contact; the "-15" suffix variants (3RV20314EA15, 3RV20314EB15) include one normally-open (1NO) auxiliary contact for status signaling or downstream coil interlock.
- Current range matching — The seed sits at 32 A within a 22–32 A setting window. Peers 3RV20314PA10 (28–36 A, 36 A max), 3RV20314UA10 (32–40 A, 40 A max), and 3RV20314WA10 (42–52 A, 52 A max) extend the upper envelope of the S2 frame family, while 3RV20314KA10 reaches 73 A in the same frame.
Technical Parameters
| Parameter | Value |
|---|---|
| Manufacturer | Siemens |
| MPN | 3RV20314EA10 |
| Product Status | Active |
| Breaker Type | Thermal |
| Current Rating | 32 A |
| Number of Poles | 3 |
| Mounting Type | DIN Rail |
| Actuator Type | Rotary |
| Illumination | None |
| Encapsulation | Bulk |
| Package | Bulk |
| Approval Agency | CCC, CSA, EAC, IECEx, UL |
In-Catalog Comparison
| MPN | Current Rating | Breaker Type | Class | Auxiliary | Package | Similarity |
|---|---|---|---|---|---|---|
| 3RV20314EA10 | 32 A | Thermal | 10 | None | Bulk | — |
| 3RV20314EA15 | 32 A | Thermal Magnetic | 10 | 1NO | Box | 1.0 |
| 3RV20314EB10 | 32 A | Thermal | 20 | None | Bulk | 1.0 |
| 3RV20314EB15 | 32 A | Thermal Magnetic | 20 | 1NO | Box | 1.0 |
Why These Peers Are Similar
All listed MPNs belong to the Siemens 3RV2 S2-frame motor protector family, share 3-pole DIN rail mounting and rotary actuators, and match on voltage and pole count. The "-EAxx" and "-EBxx" groups share the same 22–32 A current setting window; the primary differentiator is trip class (10 vs. 20) and the presence of an auxiliary contact in the "-15" suffix variants.
Similar Catalog Parts
| MPN | Current Rating | Trip Class | Approval Agency |
|---|---|---|---|
| 3RV20314EA10 | 32 A | Class 10 | CCC, CSA, EAC, IECEx, UL |
| 3RV20314PA10 | 36 A | Class 10 | CCC, CSA, EAC, IECEx, UL |
| 3RV20314UA10 | 40 A | Class 10 | ATEX, CCC, CSA, EAC, UL |
| 3RV20314KA10 | 73 A | Class 10 | ATEX, CCC, CSA, EAC, UL |
| 3RV20314WA10 | 52 A | Class 10 | ATEX, CCC, CSA, EAC, UL |
| 3RV20314EA150BA0 | 32 A | Thermal Magnetic | CE, EAC, VDE |
The extended-current peers cover the same S2 frame with higher full-load current ratings, requiring the reader to verify coordination with upstream short-circuit protection and downstream motor nameplate data.