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3RV21111KA10 - Motor Protection Circuit Breaker, SCREW CONNECTION 12.5A - Siemens

Cat No.	3RV21111KA10
Category	MPCB
Stock	In Stock
Condition	Brand New, Sealed Packaging
Product Type	MPCB

Please contact us for the exact delivery timeline

In Stock — 1 Qty

Quantity	Expected Delivery
1 Units	25 Business Days

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Technical Specification

SIEMENS 3RV21111KA10 MPCB Technical Specification

MPCB
Actuator Type	Not Applicable
Application	Motor
Breaking Cap	Not Applicable
OL Setting	9-12.5A
Protection	Overload, Short Circuit Protection
Range of Product	3RV
Rating	12.5A
Release	TM Release
SC Setting	Not Applicable
Type	3RV2

Product Details

Siemens 3RV21111KA10 - Motor Protection Circuit Breaker, SCREW CONNECTION 12.5A. We are dedicatedly involved in providing an excellent quality products at Electrihub.

Product Dimensions

SIEMENS 3RV21111KA10 dimensions and weight

Dimensions (L × W × H)

Length 10.8 cm

Width 7.25 cm

Height 10.45 cm

Weight

Net Weight 0.4 kg

Dimensions are approximate. For precise dimensional drawings, contact us.

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Product Overview

Siemens 3RV21111KA10 - Motor Protection Circuit Breaker, SCREW CONNECTION 12.5A. We are dedicatedly involved in providing an excellent quality products at Electrihub.

Frequently Asked Questions for 3RV21111KA10

The SIEMENS 3RV21111KA10 is a specialized high-performance MPCB (Motor Protection Circuit Breaker) engineered to protect industrial electric motors against thermal overloads, heavy short-circuits, and phase imbalances. It integrates both a thermal relay mechanism for overload safety and an instantaneous magnetic trip unit into one compact module. Genuine SIEMENS industrial switchgear can be ordered online across India with complete warranty support through RAS Electrihub.

To accurately calibrate the thermal trip parameters on your SIEMENS 3RV21111KA10, access the adjustable integrated current setting scale situated on the front facade of the breaker. Rotate the scale using an insulated calibration tool until the marker aligns precisely with the motor's Full Load Current (FLC) stated on its nameplate. Proper calibration prevents operational nuisance tripping and protects downstream assets. View comprehensive setup charts on RAS Electrihub.

The SIEMENS 3RV21111KA10 MPCB features a modular architecture designed for rapid field-fitting of accessories. It supports snap-on elements including 3RV29 auxiliary switches and 3RV29 undervoltage releases. These expansion blocks facilitate remote trip signals, alarm flags, under-voltage dropouts, and seamless feedback integration into PLC automation panels. Purchase authentic accessories from RAS Electrihub.

The SIEMENS 3RV21111KA10 MPCB is fully rated for standard 3-phase industrial power distribution networks in India, typically operating up to 415V/690V AC at 50Hz. Its short-circuit breaking capacity (Icu and Ics) is optimized to manage severe fault currents common in heavy-duty environments, in strict alignment with the SIEMENS SIRIUS 3RV Series architectural standards. Detailed tech datasheets are hosted online at RAS Electrihub.

Yes, the SIEMENS 3RV21111KA10 features an integrated differential phase-failure trip mechanism compliant with IS/IEC 60947-4-1 standards. In the event of an unbalanced phase or a total single-phasing fault, the internal slider quickens the thermal trip linkage to instantly isolate the motor winding and prevent critical overheating damage. This essential protection feature is standard across all SIEMENS models on RAS Electrihub.

The SIEMENS 3RV21111KA10 is a high-performance MPCB (Motor Protection Circuit Breaker) designed to protect electric motors from thermal overloads, short-circuits, and phase failures. It combines the functionality of a thermal relay for overload protection and a magnetic circuit breaker for instantaneous short-circuit protection into a single compact device. You can source authentic SIEMENS switchgear globally through Electrihub.

To calibrate the thermal trip setting on the SIEMENS 3RV21111KA10, locate the integrated current setting scale on the front facade of the unit. Use a precise calibration screwdriver to turn the dial until the pointer aligns with the Full Load Current (FLC) rating specified on your motor's nameplate. Proper coordination ensures optimal protection without nuisance tripping. For detailed wiring diagrams, check the Electrihub catalog.

The SIEMENS 3RV21111KA10 MPCB is fully modular and supports a wide range of clip-on accessories for automation. Compatible modules include 3RV29 auxiliary switches and 3RV29 undervoltage releases. These allow for remote fault indication, shunt tripping, undervoltage safety interlocks, and seamless integration into PLC control panels. Explore the full accessory line on Electrihub.

The SIEMENS 3RV21111KA10 MPCB is engineered for standard industrial networks, typically rated up to 690V AC. Its ultimate short-circuit breaking capacity (Icu) depends on the specific voltage level (e.g., 400V/415V AC) and ranges from standard to high-fault capacities typical of the SIEMENS SIRIUS 3RV Series. Complete engineering parameters and datasheets are hosted on Electrihub.

Yes, the SIEMENS 3RV21111KA10 includes differential phase failure sensitivity in compliance with international standards like IEC/EN 60947-4-1. If a phase loss or severe unbalance occurs in the motor circuit, an internal slide mechanism accelerates the thermal trip response to prevent winding burnout. This critical safety feature is standard across all SIEMENS MPCB models available at Electrihub.

Yes. RAS Electrihub Private Limited operates as an ISO-certified organization, ensuring quality sourcing, authentic products, and standardized procurement and delivery processes.

Yes. RAS Electrihub Private Limited issues GST-compliant invoices and also supports PO-based invoicing for businesses, contractors, and organizations across India.

Yes. RAS Electrihub Private Limited provides PAN India delivery with reliable logistics, safe packaging, and doorstep delivery across all states and union territories.

Reviews & Ratings

3.3

8 reviews

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Leon Davis Sep 29, 2026

Electrihub is our preferred source for Siemens electrical and automation products. The 3RV21111KA10 MPCB matched the datasheet specifications perfectly. Pricing was very competitive and billing was seamless.

Stephen Long Sep 29, 2026

We installed the Siemens 3RV21111KA10 in our industrial control panel. Excellent build quality, rugged terminals, and flawless operation under continuous load. Electrihub is a very dependable online store for automation equipment.

Adam Wood Sep 29, 2026

Ordered the Siemens 3RV21111KA10 push button / switchgear component on Electrihub when local suppliers had extended lead times. Shipped out quickly and arrived securely protected with anti-static bubble wrap.

Daniel Torres Sep 29, 2026

Received this Siemens 3RV21111KA10 (MPCB) in brand-new original manufacturer packing with test inspection paperwork. Electrihub provided quick international transit and clear shipment updates. Outstanding switchgear supplier.

Alok Desai Jun 17, 2026

Excellent pricing and seamless checkout on RAS Electrihub. We needed the 3RV21111KA10 urgently for an automation breakdown issue, and it arrived right on time. Authentic SIEMENS product with solid performance. Highly recommended online vendor!

Vijay Nair Jun 17, 2026

Great deal on the SIEMENS 3RV21111KA10. RAS Electrihub is doing an amazing job providing industrial switchgear directly online. The product came with original factory sealing and works perfectly. Will definitely buy again for our next project.

Sanjay Gupta Jun 17, 2026

Superb experience purchasing 3RV21111KA10 from RAS Electrihub. The online ordering process is completely hassle-free. Got a 100% original SIEMENS product with a proper GST invoice at a much better rate than the offline market. Perfect platform for electrical switchgear.

Rajesh Tyagi Jun 17, 2026

Ordered this 3RV21111KA10 MPCB for our factory panel setup. RAS Electrihub delivered it safely within 3 days. Finding authentic SIEMENS automation components online in India with transparent pricing used to be tough, but they have made it incredibly easy.

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3RV21111KA10 - Motor Protection Circuit Breaker, SCREW CONNECTION 12.5A - Siemens

Technical Documents

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Technical Specification

Product Details

Product Dimensions

Related Products

Frequently Bought Together

Product Line Card

No Data Available

Alternate Products

Product Overview

Frequently Asked Questions for 3RV21111KA10

Reviews & Ratings

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