Siemens 3RV20114AA20 Motor Starter Protector
Engineering verification checklist
- Confirm system voltage and frequency match the intended installation (branch coordination with upstream protective device)
- Verify 16 A thermal trip setting suits the protected motor full-load current
- Check that DIN rail mounting enclosure depth and side clearance accommodate the S00 frame form factor
- Validate that spring-type load-side terminations are compatible with conductor size and strip length used in the panel build
- Confirm auxiliary contact configuration (none on this variant) meets any required status signaling or interlock needs
- Verify applicable ATEX zone classification andHazLoc environment requirements match approval scope (ATEX, CCC, CSA, EAC, UL)
- Ensure no illumination requirement exists for this variant; alternate catalog rows offer illuminated operators if needed
- Coordinate thermal-magnetic trip class and coordination type with upstream breaker/overload relay settings for the specific motor feeder
MPN and family context
The prefix 3RV20114AA20 places this device in Siemens' 3RV2 S00 motor starter protector series — size S00 refers to a compact DIN rail-mounted frame used in motor branch protection. The suffix "AA20" designates the termination variant: spring-cage (spring) load-side connections with screw-type line-side terminations. Bulk packaging is standard for this configuration.
Key parameters
| Parameter | Value |
|---|---|
| Mfr | Siemens |
| Current Rating | 16 A |
| Breaker Type | Thermal |
| Actuator Type | Rotary |
| Number of Poles | 3 |
| Mounting Type | DIN Rail |
| Illumination | None |
| Approval Agency | ATEX, CCC, CSA, EAC, UL |
| Product Status | Active |
| Encapsulation / Package | Bulk |
Catalog variants with shared specs
The 3RV20114AA20 shares its 16 A thermal, 3-pole, rotary, DIN-rail, non-illuminated core configuration with several in-catalog variants that differ in termination and auxiliary contact options.
| Spec | 3RV20114AA20 | 3RV20114AA25 | 3RV20114AA40 | 3RV20114AA10 |
|---|---|---|---|---|
| Current Rating | 16 A | 16 A | 16 A | 16 A |
| Breaker Type | Thermal | Thermal Magnetic | Thermal Magnetic | Thermal |
| Actuator Type | Rotary | Rotary | Rotary | Rotary |
| Number of Poles | 3 | 3 | 3 | 3 |
| Mounting Type | DIN Rail | DIN Rail | DIN Rail | DIN Rail |
| Illumination | None | None | None | None |
| Encapsulation | Bulk | Box | Box | Bulk |
3RV20114AA25 adds an auxiliary contact assembly (1NO + 1NC) and uses a box package with thermal-magnetic trip. It carries an expanded approval list including CE, IECEx, and VDE in addition to the seed's ATEX, CCC, CSA, EAC, and UL.
3RV20114AA40 replaces spring load-side terminations with ring lug terminals; it also switches to thermal-magnetic and box packaging with the broader CE/EAC/VDE approval set.
3RV20114AA10 reverts to screw-type load-side connections in bulk packaging, matching the seed's thermal-only trip and the narrower approval scope (CCC, CSA, EAC, UL).
Selection notes
For motor feeder designs requiring spring-cage termination convenience without auxiliary contact integration, 3RV20114AA20 is the direct catalog match for the stated spec set.
When auxiliary contacts are required for status indication or interlock sequences, 3RV20114AA25 provides the 1NO+1NC configuration while retaining the same 16 A / 3-pole / rotary / DIN-rail form factor.
If ring-lug load-side terminations suit panel-builder preference or vibration-prone environments, 3RV20114AA40 offers that variant while maintaining thermal-magnetic trip characteristics.
When spring termination is not needed and screw-only load-side connections are acceptable, 3RV20114AA10 covers the basic 16 A thermal variant in bulk packaging.
FAQ
Does the 3RV20114AA20 include auxiliary contacts? No. This variant has no auxiliary contact provision. Other catalog variants (e.g., 3RV20114AA25) include a factory-fitted 1NO+1NC auxiliary contact block.
What trip technology does the 3RV20114AA20 use? It uses a thermal-only breaker type. Some catalog peers (3RV20114AA25, 3RV20114AA40) upgrade to thermal magnetic.
Is spring termination available on both line and load sides? This variant specifies spring-type load-side terminations with screw-type line-side terminations. Verify compatibility with the specific conductor types and panel routing planned.