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3VA1125-4EE46-0AA0
Molded case circuit breaker (MCCB) 3VA1, 150 / 160 A, TM220, ATFM, 3 pole, Connection to cables
- Stock status:
- Call for availability
- Manufacturer:
- Siemens
- Product code:
- 3VA1125-4EE46-0AA0
Main documents
- Product datasheet
- Instruction sheet
- Catalogue
Related products
| Product | |
| Article Number (Market Facing Number) | 3VA1125-4EE46-0AA0 |
| Product Description | circuit breaker 3VA1 IEC Frame 160 breaking capacity class S Icu=36 kA @ 415 V 4-pole, line protection TM220, ATFM, In=25 A overload protection Ir=18 A…25 A short-circuit protection Ii=12.8 x In N conductor unprotected terminal connection |
| Product family | 3VA Molded Case Circuit Breakers up to 1600 A, IEC |
| Product Lifecycle (PLM) | PM300:Active Product |
| Price data | |
| Region Specific PriceGroup / Headquarter Price Group | 12P / 1CB |
| List Price | Show prices |
| Customer Price | Show prices |
| Surcharge for Raw Materials | None |
| Metal Factor | LOA—– |
| Additional Product Information | ||
| EAN | 4042948822234 | |
| UPC | 804766426575 | |
| Commodity Code | 85362010 | |
| LKZ_FDB/ CatalogID | LV10.1 | |
| Product Group | 5375 | |
| Group Code | P360 | |
| Country of origin | Czech Republic | |
| Compliance with the substance restrictions according to RoHS directive | Since: 01.04.2014 | |
| Product class | C: products manufactured / produced to order, which cannot be reused or re-utilised or be returned against credit. | |
| WEEE (2012/19/EU) Take-Back Obligation | Yes | |
| REACH Art. 33 Duty to inform according to the current list of candidates | ||
| SCIP number | f24b101f-75ce-4611-b03d-baf99a868a3b | |
Product Description
The Siemens 3VA1125-4EE46-0AA0 is a high-performance molded case circuit breaker (MCCB) designed for line protection in medium fault level electrical systems. It is part of the 3VA1 series, known for reliable overload and short-circuit protection in various applications.
Key Features and Specifications:
- Frame Size: 160 A (IEC standard)
- Rated Current (In): 25 A
Breaking Capacity:
- Icu (Ultimate Breaking Capacity): 36 kA at 415 V, ensuring effective protection against high fault currents.
- Poles: 4-pole design, providing comprehensive protection across all three phases, with an unprotected neutral (N) conductor.
Protection Features:
- Overload Protection (Ir): Adjustable between 18 A and 25 A, giving flexibility in protection levels for different loads.
- Short-Circuit Protection (Ii): 12.8x In, providing fast-acting protection during short-circuit conditions.
- Protection Type: Line protection TM220 with ATFM (Automatic Trip Function Management), for precise automatic response to overload and short-circuit conditions.
- Connection Type: Terminal connection, allowing for secure and simple electrical connections.
Compliance & Product Lifecycle:
- Product Lifecycle Management (PLM): PM300 – Active Product, available for current use and purchasing.
- EAN: 4042948822234
- UPC: 804766426575
- Commodity Code: 85362010
Summary
This circuit breaker is designed for medium fault current applications, offering flexibility in its adjustable protection settings. Its 4-pole design and reliable breaking capacity make it suitable for a variety of industrial and commercial electrical systems.
Frequently Asked Questions
What is the full form of MCCB in Siemens?
The full form of MCCB is Molded Case Circuit Breaker. A Siemens MCCB is designed to handle high electrical currents, often up to 1000A, making it highly reliable for industrial and commercial applications. These breakers provide advanced protection against overloads and short circuits, ensuring the safety of large electrical systems.
What is the difference between a Molded Case Circuit Breaker (MCB) and an MCCB?
The main difference between an MCB (Miniature Circuit Breaker) and an MCCB (Molded Case Circuit Breaker) lies in their capacity and applications.
✅MCBs are generally used for low-power applications, with a short-circuit breaking capacity of up to 10–15 kA. They are best suited for residential and light commercial systems.
✅ MCCBs, on the other hand, are designed for medium to high-power applications, with a breaking capacity ranging from 15 kA up to 100 kA and current ratings up to 1000A. This makes them ideal for industrial environments where large electrical loads need reliable protection.
Which company circuit breaker is best?
✅ In 2025, the leading circuit breaker brands include Siemens, Schneider Electric, ABB, Eaton, and Legrand. Among them, Siemens MCCBs—especially the Sentron 3VA series—stand out for safety, durability, and advanced circuit protection in industrial and commercial applications.
What breakers work in a Siemens box?
Siemens QT, QP, QAF, and QPF breakers fit Siemens panels. However, not all breakers are interchangeable—e.g., a QT breaker cannot replace a QP breaker. Always check compatibility before replacing.
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