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3VA1120-6EF46-0AA0
Molded case circuit breaker (MCCB) 3VA1, 150 / 160 A, TM240, ATAM, 4 pole, Connection to cables
- Stock status:
- Call for availability
- Manufacturer:
- Siemens
- Product code:
- 3VA1120-6EF46-0AA0
Main documents
- Product datasheet
- Instruction sheet
- Catalogue
Related products
| Product | |
| Article Number (Market Facing Number) | 3VA1120-6EF46-0AA0 |
| Product Description | circuit breaker 3VA1 IEC Frame 160 breaking capacity class H Icu=70 kA @ 415 V 4-pole, line protection TM240, ATAM, In=20 A overload protection Ir=14 A…20 A short-circuit protection Ii=8…16 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 | 4042948820797 | |
| UPC | 804766426919 | |
| 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 | fd21d712-e515-47a4-9591-b60b69f675a2 | |
Product Description
The Siemens 3VA1120-6EF46-0AA0 is a high-performance molded case circuit breaker (MCCB) designed for line protection in medium and high fault level environments. It ensures safety and reliability for electrical systems in industrial and commercial settings.
Key Features and Specifications:
- Frame Size: 160 A (IEC standard)
- Rated Current (In): 20 A
Breaking Capacity:
- Icu (Ultimate Breaking Capacity): 70 kA at 415 V, suitable for high-level fault conditions.
- Poles: 4-pole design, ensuring protection for all phases, with an unprotected neutral (N) conductor.
Protection Features:
- Overload Protection (Ir): Adjustable between 14 A and 20 A, providing flexibility to match system requirements.
- Short-Circuit Protection (Ii): Adjustable between 8x and 16x In, offering enhanced short-circuit protection.
- Protection Type: Line protection TM240 with ATAM (Automatic Trip Adjustment Management) for precise control and reliable performance.
- Connection Type: Terminal connection, providing safe and secure wiring connections.
Compliance & Product Lifecycle:
- Product Lifecycle Management (PLM): PM300 – Active Product, currently available in Siemens’ catalog.
- EAN: 4042948820797
- UPC: 804766426919
- Commodity Code: 85362010
Summary
This circuit breaker is ideal for systems requiring robust protection against overloads and short circuits, with a high breaking capacity of 70 kA. Its flexible protection settings make it suitable for a variety of applications in environments with significant electrical demands.
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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