3RV2021-4AA10

Name: Siemens 3RV2021-4AA10
Brand: Siemens
SKU: 3rv2021-4aa10
Price: 64.00 GBP
Availability: InStock

Circuit breaker size S0 for motor protection, CLASS 10 A-release 10...16 A N-release 208 A screw terminal Standard switching capacity

Image for illustration purposes only.

If you're unsure whether this part is a perfect match, please contact us.

What do the conditions mean?

New Sealed — New and unused, supplied in original manufacturer packaging.

New — New and unused. Original manufacturer packaging may be opened, missing or replaced.

Refurbished — Professionally inspected, tested and restored to full working condition.

Used — Previously used, inspected and tested as fully operational.

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Full 24 months warranty

Worldwide Delivery

Condition: New Sealed

£42.00

Est. shipping: October 23 2026

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View all options and prices (13)

Condition	Warehouse	Stock	Price
New Sealed Full 24 months warranty Est. shipping: October 23 2026	WM71-3R	Enquire now	£42.00	Add to Cart
New Sealed Full 24 months warranty Est. shipping: October 23 2026	WM85-3R	Enquire now	£45.00	Add to Cart
New Sealed Full 24 months warranty Est. shipping: October 23 2026	WM92-3R	Enquire now	£45.00	Add to Cart
New Sealed Full 24 months warranty Est. shipping: December 08 2026	WM97-3R	Enquire now	£46.00	Add to Cart
New Sealed Full 24 months warranty Est. shipping: October 30 2026	WM66-3R	Enquire now	£47.00	Add to Cart
New Sealed Full 24 months warranty Est. shipping: October 23 2026	WM94-3R	Enquire now	£47.50	Add to Cart
New Sealed Full 24 months warranty Est. shipping: October 06 2026	WM75-3R	10+ in stock	£95.00	Add to Cart
New Sealed Full 24 months warranty Est. shipping: October 02 2026	WM6-3R	Enquire now	-	Get Quote
New Sealed Full 24 months warranty Est. shipping: October 02 2026	WM22-3R	Enquire now	-	Get Quote
New Sealed Full 24 months warranty Est. shipping: October 02 2026	WM24-3R	Enquire now	-	Get Quote
New Sealed Full 24 months warranty Est. shipping: October 05 2026	WM44-3R	5+ in stock	-	Get Quote
New Sealed Full 24 months warranty Est. shipping: October 12 2026	WM62-3R	Enquire now	-	Get Quote
New Sealed Full 24 months warranty Est. shipping: October 13 2026	WM76-3R	Enquire now	-	Get Quote

20+ in stock

Full 12 months warranty

Worldwide Delivery

Condition: New

£64.00

Est. shipping: October 06 2026

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View all options and prices (15)

Condition	Warehouse	Stock	Price
New Full 12 months warranty Est. shipping: October 06 2026	WM89-3R	20+ in stock	£64.00	Add to Cart
New In Open Original Box Full 12 months warranty Est. shipping: September 30 2026	WM10-3R	Enquire now	-	Get Quote
New Full 12 months warranty Est. shipping: September 30 2026	WM37-3R	Enquire now	-	Get Quote
New Full 12 months warranty Est. shipping: October 01 2026	WM83-3R	Enquire now	-	Get Quote
New In Open Original Box Full 12 months warranty Est. shipping: October 02 2026	WM25-3R	Enquire now	-	Get Quote
New Full 12 months warranty Est. shipping: October 02 2026	WM27-3R	Enquire now	-	Get Quote
New Full 12 months warranty Est. shipping: October 02 2026	WM14-3R	Enquire now	-	Get Quote
New Full 12 months warranty Est. shipping: October 02 2026	WM25-3R	Enquire now	-	Get Quote
New Without Original Box Full 12 months warranty Est. shipping: October 02 2026	WM27-3R	Enquire now	-	Get Quote
New Without Original Box Full 12 months warranty Est. shipping: October 02 2026	WM72-3R	Enquire now	-	Get Quote
New Full 12 months warranty Est. shipping: October 05 2026	WM44-3R	20+ in stock	-	Get Quote
New Full 12 months warranty Est. shipping: October 05 2026	WM61-3R	Enquire now	-	Get Quote
New Full 12 months warranty Est. shipping: October 06 2026	WM59-3R	Enquire now	-	Get Quote
New Full 12 months warranty Est. shipping: October 09 2026	WM46-3R	Enquire now	-	Get Quote
New Full 12 months warranty Est. shipping: October 29 2026	WM74-3R	Enquire now	-	Get Quote

Low stock

Full 12 months warranty

Worldwide Delivery

Condition: Used

£23.50

Est. shipping: October 06 2026

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View all options and prices (5)

Condition	Warehouse	Stock	Price
Used Full 12 months warranty Est. shipping: October 06 2026	WM75-3R	Low stock	£23.50	Add to Cart
Used Full 12 months warranty Est. shipping: September 30 2026	WM10-3R	Enquire now	-	Get Quote
Used Full 12 months warranty Est. shipping: October 02 2026	WM27-3R	Enquire now	-	Get Quote
Used Full 12 months warranty Est. shipping: October 02 2026	WM72-3R	Enquire now	-	Get Quote
Used Full 12 months warranty Est. shipping: October 05 2026	WM44-3R	20+ in stock	-	Get Quote

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Product Overview:

The 3RV2021-4AA10 is a compact, current-limiting circuit breaker designed for load feeders up to 7.5 kW at AC-3/400 V. It features size S0 for DIN rail mounting and is suitable for various industrial automation applications.

This description was generated automatically and may contain errors. Please check specifications against your part number or the manufacturer's datasheet.

Part Number:

3RV2021-4AA10

Manufacturer:

Siemens

Availability:

80+ available from our partners

Conditions:

New Sealed, New In Open Original Box, New, New Without Original Box and Used

Warranty:

Full 24 months warranty
Full 12 months warranty

Lead Time:

Usually Dispatched In 5-7 Days

System ID Number:

5409401

Shipping:

We deliver worldwide

Weight:

0.36kg

Dimensions:

49mm x 102mm x 102mm

Also Known As:

3RV2021_4AA10, 3RV20214AA10, 3RV2021/4AA10, 3RV2021-4AA10

Siemens is a global leader in industrial automation, digitalisation, and electrification, offering products such as PLCs, drives, industrial robots, and process control systems. Known for innovation and sustainability, Siemens’ technologies enhance efficiency, safety, and performance across industries like manufacturing, energy, and healthcare.

***CJS Automation is NOT an authorised distributor of Siemens***

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Up to 24 Month Warranty

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Urgent Delivery Success: Supplying Critical Automation Parts in Record Time

When production depends on a single critical part, delays are not an option. For a UK-based metal enclosure manufacturer, the unavailability of a Siemens 6FM1715-3AA20 part threatened to halt production. With tight deadlines and no local stock available, they turned to CJS Automation for a solution. What followed was a race against time that demonstrated our commitment to exceptional service.

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When a pharmaceutical company in Germany encountered a shortage of Schneider Electric components, their tablet packaging line ground to a halt. Production delays threatened the timely delivery of critical medications. CJS Automation acted swiftly, delivering the components in under 48 hours and safeguarding production continuity.

Read Case Study

3RV2021-4AA10

Product Overview:

Part Information:

About: Siemens

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