Siemens 3RV1121‑0AA10 SIRIUS Motor Protection Circuit Breaker 0.11–0.16A New

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Siemens SIRIUS 3RV1121‑0AA10 motor protection circuit breaker, size S0, adjustable 0.11–0.16A Class 10 trip, new and never used in the original Siemens box. Compact 3‑pole motor starter protector with rotary ON/OFF handle and integrated overload relay and short‑circuit release, suitable for very small three‑phase motors up to 690 V AC.

Item details

• Brand: Siemens​

• Family: SIRIUS 3RV1 motor starter protectors​​

• Model: 3RV1121‑0AA10​

• Type: Motor protection circuit breaker / manual motor starter​

• Size: S0 frame

• Current setting range (A‑release): 0.11–0.16A adjustable via front dial​

• Short‑circuit release (N‑release): 2.1A instantaneous​

• Tripping class: Class 10 (approx. 10 s at 7.2 × Ie)​

• Rated operational voltage: up to 690 V AC, 50/60 Hz​​

• Breaking capacity: increased switching capacity, Icu up to 100 kA at 415 V AC (per 3RV S0 data).

• Terminals: screw terminals for line and load conductors​​

• Mounting: DIN‑rail mountable (standard 35 mm)

• Functions:

  • Manual ON/OFF rotary handle

  • TRIPPED indication

  • TEST button for trip simulation​​

• Standards: IEC 60947‑1/‑2/‑4‑1, GB14048, VDE 0660 series.​

Condition

• New old stock; device has never been installed or wired.

• Original Siemens cardboard box included; box shows noticeable shelf dirt, discoloration and edge creasing from storage but is structurally intact.​

• Front face, rotary handle and terminals appear clean with no tool marks; breaker remains seated in its factory packing.​

Notes

• Intended for protecting very small motors or loads with full‑load current in the 0.11–0.16A range; buyer should confirm compatibility with motor nameplate and coordination with contactors/fuses.​

• Part of the SIRIUS modular system; can be combined with Siemens contactors and accessories for complete motor starter assemblies.