Siemens 3RV2021-1KA15 Motor Protection Circuit Breaker 3RV2 S0 9-12.5A 690V
Siemens 3RV2021-1KA15 is a 3-pole SIRIUS 3RV2 motor protection circuit breaker with 9–12.5 A adjustable overload protection, 163 A short-circuit release and 690 V AC rating.
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- US$ 124.00
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Description
Siemens 3RV2021-1KA15
Motor Protection Circuit Breaker | SIRIUS 3RV2 | Size S0 | 3-Pole | Class 10 | 9–12.5 A | 690 V | 1NO + 1NC Auxiliary Contacts
- The Siemens 3RV2021-1KA15is a SIRIUS 3RV2 motor protection circuit breaker designed for reliable protection and switching of three-phase motors.
- It is a size S0, 3-poledevice with a Class 10 overload release adjustable from 9 to 12.5 A and an instantaneous short-circuit release set at 163 A.
- The circuit breaker provides thermal overload and magnetic short-circuit protection, as well as phase-failure sensitivity for motor protection applications.
- The unit features screw terminals, a rotary operating mechanism and integrated transverse auxiliary contacts with 1 NO + 1 NC It is rated for operating voltages up to 690 V ACand is suitable for combination with Siemens SIRIUS contactors and accessories.
Important Application Note:Set the overload protection within 9–12.5 A according to the motor’s rated current. The device provides thermal overload and magnetic short-circuit protection and should be coordinated with the motor, contactor and upstream short-circuit protectio
Technical Specifications
| Manufacturer | Siemens |
| Model | 3RV2021-1KA15 |
| Product Type | Motor Protection Circuit Breaker |
| Series | SIRIUS 3RV2 |
| Frame Size | S0 |
| Poles | 3-Pole |
| Trip Class | Class 10 |
| Overload Setting | 9–12.5 A |
| Rated Current | 12.5 A |
| Rated Voltage | Up to 690 V AC |
| Short-Circuit Trip | 163 A |
| Motor Power | 5.5 kW at 400 V AC |
| Auxiliary Contacts | 1 NO + 1 NC |
| Protection | Thermal + Magnetic |
| Protection Rating | IP20 |
| Dimensions | 97 × 45 × 97 mm |
| Weight | Approx. 0.37 kg |
| Country of Origin | Germany |
| Product Status | Active / Current |
| Replacement Model | — |
This item is listed for catalogue and inquiry purposes. Availability, condition, revision, warranty coverage, and lead time are confirmed with each quotation.
All items are Distributor Ready-stock Genuine Brand-new Supplying, please inform us if the
| Industrial Automation & Process Control
• Digital signal monitoringl |
Power & Energy Systems
• Switchgear monitoring |
| Machinery & Equipment
• Machine status monitoring |
Industrial Applications
• Factory automation |
Replacement note: No separate replacement model is required because 3RV2021-1KA15 is an active/current 3RV2 model. The broader Siemens 3RV2 family replaced the earlier 3RV1 series.
Additional information
| Warranty : | 12 Month |
|---|---|
| Lead Time : | Ready Stock |







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